A Rapid Biodiversity Assessment &amp; Archaeological Survey of the Fiji REDD+ Pilot Site: Emalu Forest, Viti Levu

Bindiya Rashni

The land encompassed by the mataqali Emalu in the province of Navosa has been selected as the pilot site for the Fiji REDD+ programme. A survey to assess the biodiversity of the area and document its cultural heritage sites was carried out by a team of specialists from USP’s Institute of Applied Science (the South Pacific Regional Herbarium and the Environment Unit), the Fiji Museum, NatureFijiMareqetiViti and Conservation International. The expedition was implemented in two phases; in July 2012 and March 2013. Flora, Vegetation and Ecology A total of 707 plant taxa were recorded for Emalu, including 286 bryophytes and lichens, 375 angiosperms, nine gymnosperms, and 35 ferns and fern allies. Altogether, the vascular and non-vascular taxa recorded from the Emalu site spanned 182 families and 391 genera. Over a third (39%) of the vascular plant flora recorded are endemic to Fiji, including 160 species of flowering plants, two fern and fern allies, and two gymnosperms. Ten taxa were en...

A Rapid Biodiversity Assessment & Archaeological Survey of the Fiji REDD+ Pilot Site: Emalu Forest, Viti Levu Editors: Marika V. Tuiwawa, Sarah Pene, Senilolia H. Tuiwawa Compiled by the Institute of Applied Sciences, University of the South Pacific, for the Forestry Department of the Ministry of Agriculture, Fisheries and Forestry, Republic of the Fiji Islands; and SPC/GIZ ‘Coping with Climate Change in the Pacific Island Region’ Programme August 2013 Table of Contents Organisational Profiles & Authors ..................................................................................... 1 Acknowledgements .......................................................................................................... 3 Executive Summary .......................................................................................................... 4 Maps ................................................................................................................................ 6 Photographs ................................................................................................................... 19 CHAPTER 1: Introduction ................................................................................................. 34 CHAPTER 2: Flora, Vegetation & Ecology.......................................................................... 37 CHAPTER 3: Herpetofauna............................................................................................... 49 CHAPTER 4: Avifauna ...................................................................................................... 54 CHAPTER 5: Terrestrial Insects ......................................................................................... 59 CHAPTER 6: Freshwater Fishes ........................................................................................ 64 CHAPTER 7: Freshwater Macroinvertebrates ................................................................... 69 CHAPTER 8: Invasive Species ........................................................................................... 81 CHAPTER 9: Archaeological Survey .................................................................................. 87 APPENDICES ................................................................................................................... 97 REFERENCES ..................................................................................................................159 i List of Maps Map 1: Location of the Emalu study area, Viti Levu. ............................................................................. 6 Map 2: Location of certain focal plant species within Emalu ................................................................. 7 Map 3: Principal vegetation types within Emalu .................................................................................... 8 Map 4: Principal vegetation types and habitats within Emalu ................................................................ 9 Map 5: Location of herpetofauna survey points within Emalu ............................................................. 10 Map 6: Location of the avifauna survey points and 59 point count stations within Emalu .................. 11 Map 7: Location of the focal avifauna species within Emalu ............................................................... 12 Map 8: Location of the focal terrestrial insect species within Emalu ................................................... 13 Map 9: Location of freshwater fish sampling sites within Emalu ......................................................... 14 Map 10: Location of macroinvertebrate sampling stations within Emalu............................................. 15 Map 11: Location of rodent trapping transects around Tovatova basecamp ......................................... 16 Map 12: Location of cultural sites within Emalu .................................................................................. 17 Map 13: Location of six extensive old settlement sites within the Mavuvu catchment ........................ 18 ii List of Photographs Fig. 1 Leafy branches of the critically endangered podocarp, Acmopyle sahniana (SHT) .................... 19 Fig. 2 Fruit of the vulnerable endemic flowering plant, Degeneria vitiensis (SHT) ............................... 19 Fig. 3 Flower of the relic flowering plant family Degeneriaceae, Degeneria vitiensis (SHT) ................. 19 Fig. 4 The rare orchid Macodes cf. petola (MT) .................................................................................... 19 Fig. 5 The rare orchid Nervilia cf. punctata, in the lowland rainforest of Tovatova catchment (SHT) . 19 Fig. 6 Equisetum ramosissimum subsp. debile on the banks of Nasa River (SHT)................................. 19 Fig. 7 Palm tree Metroxylon vitiense (MT) ............................................................................................ 20 Fig. 8 Palm tree Metroxylon vitiense crown with apical infructescence (MT) ...................................... 20 Fig. 9 Habit and infructescence of the threatened palm, Cyphosperma tanga, found in upland slope forest of Waikarakarawa catchment (SHT) ........................................................................................... 20 Fig. 10 Close up view of Cyphosperma tanga infructescence (SHT) ..................................................... 20 Fig. 11 Villagers from Naqarawai and Draubuta assist with the processing of bryophytes (SHT) ........ 20 Fig. 12 Airing out live specimens of lichens and bryophytes in the field (SHT)..................................... 20 Fig. 13 A native bronze-headed skink, Emoia parkerii, locally known as moko sari (NT) ..................... 21 Fig. 14 Fiji’s endemic tree frog, Platymantis vitiensis, found within the Waikarakarawa catchment (SHT) ...................................................................................................................................................... 21 Fig. 15 An endemic skink toed gecko, Nactus pelagicus, locally known as moko (NT) ......................... 21 Fig. 16 The native gecko, Gehyra vorax, (boliti) camouflaged on tree bark (NT).................................. 21 Fig. 17 Habitat of the long legged warbler, Trichocichla rufa rufa, currently listed on the IUCN Red List as Endangered (AN) ............................................................................................................................... 21 Fig. 18 The long legged warbler, found to be common in the upland undisturbed riparian vegetation (AN)........................................................................................................................................................ 21 Fig. 19 The collared lorry, Phigys solitarius, found in the Emalu forest (SPRH) .................................... 22 Fig. 20 A male golden dove, Ptilinopus luteovirens, found in the Emalu forest (SPRH) ........................ 22 Fig. 21 Samoan flying-fox (beka lulu, beka ni siga) Pteropus samoensis, a Near Threatened species on the IUCN Red List, quite common in the general vicinity of Emalu (AN) .............................................. 22 Fig. 22 Insular flying fox (beka), Pteropus tonganus a species of Least Concern on the IUCN Red List, quite common in the upper Mavuvu catchment (AN) .......................................................................... 22 iii Fig. 23 Raiateana knowlesi (nanai), an endemic and rare cicada (SPRH) ............................................. 22 Fig. 24 Local guide from Draubuta assisting with the sampling of Winkler bags (AL) .......................... 22 Fig. 25 Leaf litter sampling with Winkler bags (AL) ............................................................................... 23 Fig. 26 Common damselfly, Nesobasis angolicolis, endemic to Fiji (AL) ............................................... 23 Fig. 27 The endemic butterfly, Hypolimnas inopinata, resting on a fern (AL) ...................................... 23 Fig. 28 Larva of H. inopinata on the leaves of the shrub host plant, Elatostema nemorosum (AL)...... 23 Fig. 29 The endemic stick insect, Nisyrus spinulousus, on a bark of a tree (AL).................................... 23 Fig. 30 Freshwater eels, Anguilla spp., Nasa stream in the Mavuvu catchment (LC) ........................... 23 Fig. 31 Holotype illustration of Lairdina hopletupus (Fowler, 1953) ..................................................... 24 Fig. 32 Amphidromous goby, Sicyopus zosterophorum, upper Nasa stream (LC) ................................ 24 Fig. 33 Jungle perch, Kuhlia rupestris, found within mid-Mavuvu stream (LC) ..................................... 24 Fig. 34 Sukasuka ni ika droka- a natural barrier to fish migration along the mid-Mavuvu stream (LC) 24 Fig. 35 Nasa Creek, upstream from base camp, an important habitat for fish sampling (LC) .............. 24 Fig. 36 Wainirovurovu Creek, below waterfall, an important habitat for fish sampling (LC) ............... 24 Fig. 37 Upper Wainirovurovu Creek (BR) .............................................................................................. 25 Fig. 38 Snorkeling in mid Mavuvu Creek, below the waterfall (BR) ...................................................... 25 Fig. 39 Nasa Creek (LC) .......................................................................................................................... 25 Fig. 40 Wainirovurovu tributary downstream (LC)................................................................................ 25 Fig. 41 Wainirovurovu tributary above waterfall (BR) .......................................................................... 25 Fig. 42 Wainasoba/Mid Mavuvu (BR) .................................................................................................... 25 Fig. 43 Waikarakarawa Creek (BR) ........................................................................................................ 26 Fig. 44 Qalibovitu Creek (BR) ................................................................................................................. 26 Fig. 45 Endemic mayfly Pseudocloeon sp. B (BR) .................................................................................. 26 Fig. 46 Endemic mayfly Pseudocloeon sp. B (LC) ................................................................................... 26 Fig. 47 Endemic mayfly Cloeon sp. A (BR) ............................................................................................. 26 Fig. 48 Endemic mayfly Cloeon sp. B (BR).............................................................................................. 26 Fig. 49 Damselfly nymph Nesobasis sp. “orangish” (BR) ....................................................................... 26 iv Fig. 50 Damselfly nymph Nesobasis sp. “dark green” (BR) ................................................................... 26 Fig. 51 Caddisfly larva Apsilochorema sp. “light green” (BR) ................................................................ 26 Fig. 52 Caddisfly larva Hydrobiosis sp. “pinkish” (BR) ........................................................................... 26 Fig. 53 Caddisfly larva Hydrobiosis sp. “green” (BR) ............................................................................. 26 Fig. 54 Caddisfly larvae [Trichoptera] Chimarra sp. (BR) ....................................................................... 27 Fig. 55 Nematode worm, unknown species (BR) .................................................................................. 27 Fig. 56 Cranefly larvae [Tipulidae], Tipula sp. (BR) ................................................................................ 27 Fig. 57 Rissooidean snails Fluviopupa spp., under compound microscope (BR)................................... 27 Fig. 58 Rissooidean snails Fluviopupa spp., actual size (BR).................................................................. 27 Fig. 59 Nematode worm, under compound microscope (BR)............................................................... 27 Fig. 60 Unknown species of moth (larva), actual size (BR) .................................................................... 27 Fig. 61 Unknown species of moth (larva), under compound microscope (BR) ..................................... 27 Fig. 62 Juvenile black rat caught by guide Aporosa Maya Jnr, at about 650m altitude (IR) ................. 27 Fig. 63 Horses and guides crossing the Waitotolu Creek in the Waikarakarawa catchment (SP) ........ 27 Fig. 64 Cane toad (Bufo marinus) found in the upper Mavuvu River catchment (SK) .......................... 28 Fig. 65 Piper aduncum, Mikania micrantha and Dissotis rotundifolia on the bank of a small creek (SP) ............................................................................................................................................................... 28 Fig. 66 Illustration of a burekalou in the highlands of Viti Levu (Williams and Calvert, 1858). ............ 28 Fig. 67 Sketch of a nanaga, or sacred stone enclosure of Wainimala by Leslie J. Walker (Fison, 1885)28 Fig. 68 Preserved stone alignment visible on mount at site M28-0004 (SK) ........................................ 28 Fig. 69 Possible temple mound at site M28-0008 (SK).......................................................................... 28 Fig. 70 Pottery vessel or Saqaniwai discovered on mound at site M28-0014 (SK) ............................... 29 Fig. 71 Pottery vessel discovered upon house mound at site M28-0014 (SK) ...................................... 29 Fig. 72 Pottery sherds found at site M28-0026 (SK).............................................................................. 29 Fig. 73 Ancestral passageway that leads to main stream at site M28-0026 (SK).................................. 29 Fig. 74 Stone alignment visible on mound at site M28-0028 (SK) ........................................................ 29 Fig. 75 View of agricultural terrace platforms at site M28-0013 (SK) ................................................... 29 v Fig. 76 Ditch causeway at site M28-0017 (SK) ...................................................................................... 30 Fig. 77 Raised mound with stone alignment at site M28-0026 (SK) ..................................................... 30 Fig. 78 Local guide pointing towards settlement platform at site M28-0017 (SK) ............................... 30 Fig. 79 View of settlement platform with terrace platform along the base at site M28-0017 (SK)...... 30 Fig. 80 Pottery sherds at site M28-0018 (SK) ........................................................................................ 30 Fig. 81 Ditch feature situated at site M28-0018 (SK) ............................................................................ 30 Fig. 82 Complete traditional pottery vessel with earthen rim cover at site M28-0023 (SK) ................ 30 Fig. 83 Tobu ni nanai - sacred pool (SK) ................................................................................................ 30 Fig. 84 Degraded terrace due to erosion processes at site M28-0010 (SK) .......................................... 31 Fig. 85 Metallic pot at site M28-0012 (SK) ............................................................................................ 31 Fig. 86 Raised earthen mound at site M28-0011 (SK) ........................................................................... 31 Fig. 87 Stone alignment of a house mound at site M28-0009 (SK) ....................................................... 31 Fig. 88 Rim sherd discovered at site M28-0020 (SK) ............................................................................. 31 Fig. 89 Displaced stones of house mounds generated by wild pig inhabitation and erosion processess at site M28-0022 (SK) ............................................................................................................................ 31 Fig. 90 Displaced stones of house mounds generated by wild pig inhabitation and erosion processess at site M28-0022 (SK) ............................................................................................................................ 32 Fig. 91 Visible stone alignment of house mound at site M28-0024 (SK) .............................................. 32 Fig. 92 Tobu ni sili - sacred pool (SK) ..................................................................................................... 32 Fig. 93 Vatu ni veiyalayala –Land boundary (SK) ................................................................................... 32 Fig. 94 Raised mound with stone alignment at site M28-0019 (SK) ..................................................... 32 Fig. 95 Sakiusa Kataiwai and guide in front of a fortification structure at site M28-0066 (SK) ............ 32 Fig. 96 Ruins of the stone wall at site M28-0059 (SK) ........................................................................... 33 Fig. 97 Rock shelter and camp site for the Archaeology team at site M28-0069 (SK) .......................... 33 vi List of Appendices Appendix 1. Species checklist of the non-vascular flora and lichens .............................................. 97 Appendix 2. Annotated checklist of the vascular flora of Emalu..................................................103 Appendix 3. Summary statistics of vegetation community structure assessment plots .............. 116 Appendix 4. Description of forest and non-forest habitat types .................................................. 123 Appendix 5. Herpetofauna suvey sites locations and sampling methods..................................... 125 Appendix 6. Conservation status of herpetofauna species known from Viti Levu ....................... 127 Appendix 7. Avifauna species checklist, distribution and abundance .......................................... 128 Appendix 8. Location of point count stations, habitat and birds recorded .................................. 130 Appendix 9. Focal avifauna species recorded within Emalu ......................................................... 133 Appendix 10. Species checklist of insects and arachnids in the Tovatova catchment ............... 134 Appendix 11. Species checklist of insects and arachnids in the Waikarakarawa catchment ..... 137 Appendix 12. Species checklist of insects and arachnids in the Mavuvu catchment ................. 140 Appendix 13. Species checklist of freshwater fish in the upper Sigatoka River tributaries........ 141 Appendix 14. Water quality parametres at freshwater fish sampling stations .......................... 143 Appendix 15. Location and descriptions of macroinvertebrate sampling stations .................... 144 Appendix 16. Physicochemical parameters of macroinvertebrate sampling stations ............... 145 Appendix 17. Habitat and riparian characteristics of macroinvertebrate sampling stations ..... 146 Appendix 18. Abundance of freshwater macroinvertebrates collected with Surber sampling . 147 Appendix 19. Abundance of freshwater macroinvertebrates collected opportunistically......... 149 Appendix 20. Checklist of invasive and potentially invasive animals ......................................... 152 Appendix 21. Locations of rodent transects in Tovatova catchment ......................................... 153 Appendix 22. Record of pigs (Sus scrofa) caught ........................................................................ 153 Appendix 23. Checklist of invasive and potentially invasive plants ............................................ 154 Appendix 24. Summary descriptions and locations of cultural heritage sites ............................ 156 vii ORGANISATIONAL PROFILES & AUTHORS Institute of Applied Sciences (University of the South Pacific) The Institute of Applied Sciences (IAS) was established in 1977 as part of the University of the South Pacific. The Institute operates as a consulting body within the university, applying the professional and academic expertise of its staff as required by government, NGO or private projects in Fiji and the Pacific region. IAS operates through six thematic units; the South Pacific Regional Herbarium, the Environment Unit, the Quality Control Unit, the Drug Discovery Unit, the Analytical Unit and the Food Unit. This survey was coordinated and headed by the South Pacific Regional Herbarium. South Pacific Regional Herbarium The South Pacific Regional Herbarium (SPRH) is the focal point for the study of taxonomy, conservation and ecology of plants in the Pacific. The collection of the SPRH includes over 50, 000 vascular plant specimens from Fiji and around the Pacific, as well as a wet collection of plant parts, bryophytes and algae. As a member of an international network of herbaria, the SPRH participates in programs to maintain collections of botanical plants specimens for study by local and international botanists. More recently it has extended its collection to include those of other taxa to include insects, freshwater invertebrates and vertebrates, reptiles and amphibians, birds and native mammals. South Pacific Regional Herbarium Institute of Applied Sciences, University of the South Pacific, Private Mail Bag, Suva, Fiji www.usp.ac.fj/herbarium Marika V. Tuiwawa Herbarium Curator & Survey Leader tuiwawa_m@usp.ac.fj Alivereti Naikatini Chapter 4: Avifauna naikatini_a@usp.ac.fj Senilolia H. Tuiwawa Chapter 2: Flora, Vegetation & Ecology tuiwawa_s@usp.ac.fj Sarah Pene Chapter 8: Invasive Species sarah.pene@usp.ac.fj Hilda Waqa-Sakiti Chapter 5: Entomology hilda.sakitiwaqa@usp.ac.fj Lekima Copeland Chapter 6: Freshwater Fishes lekima.copeland@gmail.com Environment Unit The Environment Unit of the Institute of Applied Science conducts environmental impact assessments and monitoring of terrestrial and aquatic biodiversity and water quality. The Environment Unit also works with communities to assist them in the development and implementation of resource management plans. Environment Unit Institute of Applied Sciences, University of the South Pacific, Private Mail Bag, Suva, Fiji 1 www.usp.ac.fj/environmentunit Hans Wendt GIS & mapping karlwendt.hans@gmail.com Bindiya Rashni Chapter 7: Freshwater Macroinvertebrates bindiya.rashni@gmail.com Fiji Museum The Fiji Museum is a statutory body with the aim of identifying, protecting and conserving archaeological and cultural heritage for current and future generations. The Fiji Museum’s collection includes archaeological material dating back 3,700 years and cultural objects representing Fiji's indigenous inhabitants as well as other communities that have settled in the island group over the past two centuries. The Fiji Museum Thurston Gardens, Suva, Fiji www.fijimuseum.org.fj Elia Nakoro Chapter 9: Archaeological Survey elia.nakoro@gmail.com Sakiusa Kataiwai Chapter 9: Archaeological Survey sakiusa.kataiwai@gmail.com NatureFiji-MareqetiViti NatureFiji-MareqetiViti is the working arm of the Fiji Nature Conservation Trust, a non-profit, nongovernment, non-political charitable trust. NatureFiji-MareqetiViti's mission is to enhance biodiversity and habitat conservation, endangered species protection and sustainable use of natural resources of the Fiji Islands through the promotion of collaborative conservation action, awareness raising, education, research, and biodiversity information exchange. NatureFiji-MareqetiViti 14 Hamilton-Beattie St., Suva, Fiji www.naturefiji.org Nunia Thomas Chapter 3: Herpetofauna nuniat@naturefiji.org Conservation International (Fiji) Conservation International (Fiji) is an international non-profit environmental organization. Its mission is to build upon a strong foundation of science, partnership and field demonstration, to empower societies to responsibly and sustainably care for nature for the well-being of humanity. Conservation International operates in Fiji in partnership with The National Trust of Fiji. Conservation International, Pacific Islands Program 3 Ma'afu St., Suva, Fiji www.conservation.org 2 Isaac Rounds Chapter 8: Invasive species irounds@conservation.org ACKNOWLEDGEMENTS The survey work described in this report would not have been possible without the support and cooperation given by the elders and landowners of Draubuta, Nakoro, Navitilevu, Naqarawai, Saliadrau and Naraiyawa villages. The authors would also like to thank the following people for their technical expertise in the field: Senivalati Vido, Salaseini Bureni and Panapasa Tubuitamana of the Fiji Department of Forestry; Apaitia Liga, Siteri Tikoca, Mereia Katafono, Tokasaya Cakacaka and Manoa Maiwaqa of the SPRH. The work of the field guides; Waisale Lasekula, Kaminieli Tauininukuilau, Lepani Kainailega, Jovilisi Mocetabua, Vetaia Mocetabua, Avisai Draunivadra, Avorosa Maya, Aporosa Maya Jnr., Asaeli Navale, Netani Ganitoga, Napolioni Suguvanua, Semesa Banuve, Samuela Nasalo, Netani Ganitoga, Sireli Marua, and Lemeki Toutou is also gratefully acknowledged. Bindiya Rashni would especially like to thank Dr Alison Haynes, Honorary Fellow at the Institute of Applied Science, for verifying the identifications from the macroinvertebrate survey. 3 EXECUTIVE SUMMARY The land encompassed by the mataqali Emalu in the province of Navosa has been selected as the pilot site for the Fiji REDD+ programme. A survey to assess the biodiversity of the area and document its cultural heritage sites was carried out by a team of specialists from USP’s Institute of Applied Science (the South Pacific Regional Herbarium and the Environment Unit), the Fiji Museum, NatureFijiMareqetiViti and Conservation International. The expedition was implemented in two phases; in July 2012 and March 2013. Flora, Vegetation and Ecology A total of 707 plant taxa were recorded for Emalu, including 286 bryophytes and lichens, 375 angiosperms, nine gymnosperms, and 35 ferns and fern allies. Altogether, the vascular and non-vascular taxa recorded from the Emalu site spanned 182 families and 391 genera. Over a third (39%) of the vascular plant flora recorded are endemic to Fiji, including 160 species of flowering plants, two fern and fern allies, and two gymnosperms. Ten taxa were encountered that are important focal species due to their rarity, botanical significance, very recent discovery in Fiji and inclusion in the IUCN Red List. Five principal vegetation types were identified; lowland rainforest, upland rainforest, cloud forest, dry forest and talasiga. Herpetofauna Six species of herpetofauna: three endemic, two native and one invasive were captured over 22 man-hours of diurnal survey, 63 hours of sticky tape trapping and nine man-hours of nocturnal surveys. This survey has documented the first records of herpetofauna in this area and indicates a similar herpetofauna habitat to those typically observed in other parts of Viti Levu. The endemic Fiji tree frog (Platymantis vitiensis) was encountered in the area and is possibly the western-most record of the occurrence of this species in Fiji. Avifauna A total of 35 species of birds were recorded during the survey, which included 25 endemic species and one exotic species. Two species of bats were also recorded during the surveys. Ten focal species were identified (eight bird species and two bat species). The bird diversity of Emalu is comparable to the four Important Bird Areas on Viti Levu and ranks even higher in terms of bird density. Terrestrial Insects The target taxa Coleoptera (beetles) recorded 26 families in total and there was also a high abundance of the family Formicidae (ants). These taxa provide critical ecosystem services in forests systems such as soil processing, decomposition, herbivory, pollination and seed dispersal. Insects of conservation value recorded from Emalu included: Hypolimnas inopinata (a rare and endemic butterfly), Nysirus spinulosus and Cotylosoma dipneusticum (rare and endemic stick insects) and Raiateana 4 knowlesi (the rare and endemic cicada). These findings suggest that the Emalu area is pristine and an important site for rare insects on Viti Levu. Freshwater Fish A total of ten species of fish from six families were recorded from the study area. Three species of gobies (Awaous guamensis, Sicyopus zosterophorum, Sicyopterus lagocephalus), two species of eels from the family Anguillidae (Anguilla marmorata and Anguilla megastoma), and the freshwater snake eel from the family Opicthidae (Lamnostoma kampeni) were collected in the area. The Mavuvu mid reach had an exceptionally high abundance and biomass of jungle perch Kuhlia rupestris when compared to other streams in Fiji. No endemic species were observed or caught during this survey. Around areas of human habitation there is evidence of the removal of riparian buffer zones as well as unrestricted livestock access to waterways which, coupled with uncontrolled slash and burn activities has exacerbated environmental degradation in these areas. The use of traditional fish poison (Derris roots) is also a common problem seen throughout the survey sites. Freshwater Macroinvertebrates A total of 76 freshwater macroinvertebrate taxa were identified from the 16,370 specimens collected in the three catchments of the Emalu region. The highly diverse freshwater macroinvertebrate community of Emalu included a high proportion of endemic taxa (75%), with insects being the most commonly occurring group. A total of 14 macroinvertebrate taxa were selected as potential bioindicators. The high rate of endemism, as well as the large number of species with large populations, is indicative of the intactness of both the stream system and the surrounding forest. Invasive Species A total of 26 invasive plants and eleven invasive animals were recorded in the study area, thirteen of which are listed in the 100 most invasive species in the world. Generally, the occurrence and abundance of invasive was associated with proximity to human habitation and to disturbed areas such as tracks, temporary campsites and cultivated areas. The invasive plant species were generally low in abundance, with the exception of Piper aduncum which was locally common, and Clidemia hirta and Mikania micrantha which were both widespread. Archaeological Survey The land belonging to the mataqali Emalu is rich in historical and cultural sites that have never been documented until this survey. A total of 77 sites of historical and cultural significance were documented, including old village sites, hill fortifications, pottery sites, agricultural terraces, sacred pools, house mounds and fortification trenches. Generally, the archaeological finds during this survey have considerable cultural value to the local community as well as at national level. 5 MAPS 6 Map 1: Location of the Emalu study area, Viti Levu. 7 Map 2: Location of certain focal plant species within Emalu 8 Map 3: Principal vegetation types within Emalu 9 Map 4: Principal vegetation types and habitats within Emalu 10 Map 5: Location of herpetofauna survey points within Emalu 11 Map 6: Location of the avifauna survey points and 59 point count stations within Emalu 12 Map 7: Location of the focal avifauna species within Emalu 13 Map 8: Location of the focal terrestrial insect species within Emalu 14 Map 9: Location of freshwater fish sampling sites within Emalu 15 Map 10: Location of macroinvertebrate sampling stations within Emalu 16 Map 11: Location of rodent trapping transects around Tovatova basecamp 17 Map 12: Location of cultural sites within Emalu M28-0071 M28-0055 M28-0065 M28-0070 18 M28-0066 M28-0068 Map 13: Location of six extensive old settlement sites within the Mavuvu catchment PHOTOGRAPHS Photographers initials are indicated in the captions: AN=Alivereti Naikatini, AL=Apaitia Liga, BR=Bindiya Rashni, EN=Elia Nakoro, IR=Isaac Rounds, LC=Lekima Copeland, MT=Marika Tuiwawa, NT=Nunia Thomas, SK=Sakiusa Kataiwai, SP=Sarah Pene, SHT=Senilolia H. Tuiwawa, SPRH=South Pacific Regional Herbarium Fig. 1 Leafy branches of the critically endangered podocarp, Acmopyle sahniana (SHT) Fig. 2 Fruit of the vulnerable endemic flowering plant, Degeneria vitiensis (SHT) Fig. 3 Flower of the relic flowering plant family Degeneriaceae, Degeneria vitiensis (SHT) Fig. 4 The rare orchid Macodes cf. petola (MT) Fig. 5 The rare orchid Nervilia cf. punctata, in the lowland rainforest of Tovatova catchment (SHT) Fig. 6 Equisetum ramosissimum subsp. debile on the banks of Nasa River (SHT) 19 Fig. 7 Palm tree Metroxylon vitiense (MT) Fig. 8 Palm tree Metroxylon vitiense crown with apical infructescence (MT) Fig. 9 Habit and infructescence of the threatened palm, Cyphosperma tanga, found in upland slope forest of Waikarakarawa catchment (SHT) Fig. 10 Close up view of Cyphosperma tanga infructescence (SHT) Fig. 11 Villagers from Naqarawai and Draubuta assist with the processing of bryophytes (SHT) Fig. 12 Airing out live specimens of lichens and bryophytes in the field (SHT) 20 Fig. 13 A native bronze-headed skink, Emoia parkerii, locally known as moko sari (NT) Fig. 14 Fiji’s endemic tree frog, Platymantis vitiensis, found within the Waikarakarawa catchment (SHT) Fig. 15 An endemic skink toed gecko, Nactus pelagicus, locally known as moko (NT) Fig. 16 The native gecko, Gehyra vorax, (boliti) camouflaged on tree bark (NT) Fig. 17 Habitat of the long legged warbler, Trichocichla rufa rufa, currently listed on the IUCN Red List as Endangered (AN) Fig. 18 The long legged warbler, found to be common in the upland undisturbed riparian vegetation (AN) 21 Fig. 19 The collared lorry, Phigys solitarius, found in the Emalu forest (SPRH) Fig. 20 A male golden dove, Ptilinopus luteovirens, found in the Emalu forest (SPRH) Fig. 21 Samoan flying-fox (beka lulu, beka ni siga) Pteropus samoensis, a Near Threatened species on the IUCN Red List, quite common in the general vicinity of Emalu (AN) Fig. 22 Insular flying fox (beka), Pteropus tonganus a species of Least Concern on the IUCN Red List, quite common in the upper Mavuvu catchment (AN) Fig. 23 Raiateana knowlesi (nanai), an endemic and rare cicada (SPRH) Fig. 24 Local guide from Draubuta assisting with the sampling of Winkler bags (AL) 22 Fig. 25 Leaf litter sampling with Winkler bags (AL) Fig. 26 Common damselfly, Nesobasis angolicolis, endemic to Fiji (AL) Fig. 27 The endemic butterfly, Hypolimnas inopinata, resting on a fern (AL) Fig. 28 Larva of H. inopinata on the leaves of the shrub host plant, Elatostema nemorosum (AL) Fig. 29 The endemic stick insect, Nisyrus spinulousus, on a bark of a tree (AL) Fig. 30 Freshwater eels, Anguilla spp., Nasa stream in the Mavuvu catchment (LC) 23 Fig. 31 Holotype illustration of Lairdina hopletupus (Fowler, 1953) Fig. 32 Amphidromous goby, Sicyopus zosterophorum, upper Nasa stream (LC) Fig. 33 Jungle perch, Kuhlia rupestris, found within mid-Mavuvu stream (LC) Fig. 34 Sukasuka ni ika droka- a natural barrier to fish migration along the mid-Mavuvu stream (LC) Fig. 35 Nasa Creek, upstream from base camp, an important habitat for fish sampling (LC) Fig. 36 Wainirovurovu Creek, below waterfall, an important habitat for fish sampling (LC) 24 Fig. 37 Upper Wainirovurovu Creek (BR) Fig. 38 Snorkeling in mid Mavuvu Creek, below the waterfall (BR) Fig. 39 Nasa Creek (LC) Fig. 40 Wainirovurovu tributary downstream (LC) Fig. 41 Wainirovurovu tributary above waterfall (BR) Fig. 42 Wainasoba/Mid Mavuvu (BR) 25 Fig. 43 Waikarakarawa Creek (BR) Fig. 45 Endemic Pseudocloeon sp.B (BR) Fig. 44 Qalibovitu Creek (BR) mayfly Fig. 46 Endemic mayfly Pseudocloeon sp. B (LC) Fig. 47 Endemic mayfly Cloeon sp. A (BR) Fig. 48 Endemic mayfly Cloeon sp. B (BR) Fig. 49 Damselfly nymph Nesobasis sp. “orangish” (BR) Fig. 50 Damselfly nymph Nesobasis sp. “dark green” (BR) Fig. 51 Caddisfly larva Apsilochorema sp. “light green” (BR) Fig. 52 Caddisfly larva Hydrobiosis sp. “pinkish” (BR) Fig. 53 Caddisfly larva Hydrobiosis sp. “green” (BR) 26 Fig. 54 Caddisfly larvae [Trichoptera] Chimarra sp. (BR) Fig. 55 Nematode unknown species (BR) worm, Fig. 56 Cranefly larvae [Tipulidae], Tipula sp. (BR) Fig. 57 Rissooidean snails Fluviopupa spp., under compound microscope (BR) Fig. 58 Rissooidean snails Fluviopupa spp., actual size (BR) Fig. 59 Nematode worm, under compound microscope (BR) Fig. 60 Unknown species of moth (larva), actual size (BR) Fig. 61 Unknown species of moth (larva), under compound microscope (BR) Fig. 62 Juvenile black rat caught by guide Aporosa Maya Jnr, at about 650m altitude (IR) Fig. 63 Horses and guides crossing the Waitotolu Creek in the Waikarakarawa catchment (SP) 27 Fig. 64 Cane toad (Bufo marinus) found in the upper Mavuvu River catchment (SK) Fig. 65 Piper aduncum, Mikania micrantha and Dissotis rotundifolia on the bank of a small creek (SP) Fig. 66 Illustration of a burekalou in the highlands of Viti Levu (Williams and Calvert, 1858). Fig. 67 Sketch of a nanaga, or sacred stone enclosure of Wainimala by Leslie J. Walker (Fison, 1885) Fig. 68 Preserved stone alignment visible on mount at site M28-0004 (SK) Fig. 69 Possible temple mound at site M28-0008 (SK) 28 Fig. 70 Pottery vessel or Saqaniwai discovered on mound at site M28-0014 (SK) Fig. 71 Pottery vessel discovered upon house mound at site M28-0014 (SK) Fig. 72 Pottery sherds found at site M28-0026 (SK) Fig. 73 Ancestral passageway that leads to main stream at site M28-0026 (SK) Fig. 74 Stone alignment visible on mound at site M28-0028 (SK) Fig. 75 View of agricultural terrace platforms at site M280013 (SK) 29 Fig. 76 Ditch causeway at site M28-0017 (SK) Fig. 77 Raised mound with stone alignment at site M280026 (SK) Fig. 78 Local guide pointing towards settlement platform at site M28-0017 (SK) Fig. 79 View of settlement platform with terrace platform along the base at site M28-0017 (SK) Fig. 80 Pottery sherds at site M28-0018 (SK) Fig. 81 Ditch feature situated at site M28-0018 (SK) Fig. 82 Complete traditional pottery vessel with earthen rim cover at site M28-0023 (SK) Fig. 83 Tobu ni nanai - sacred pool (SK) 30 Fig. 84 Degraded terrace due to erosion processes at site M28-0010 (SK) Fig. 85 Metallic pot at site M28-0012 (SK) Fig. 86 Raised earthen mound at site M28-0011 (SK) Fig. 87 Stone alignment of a house mound at site M28-0009 (SK) Fig. 88 Rim sherd discovered at site M28-0020 (SK) Fig. 89 Displaced stones of house mounds generated by wild pig inhabitation and erosion processess at site M280022 (SK) 31 Fig. 90 Displaced stones of house mounds generated by wild pig inhabitation and erosion processess at site M28-0022 (SK) Fig. 91 Visible stone alignment of house mound at site M280024 (SK) Fig. 92 Tobu ni sili - sacred pool (SK) Fig. 93 Vatu ni veiyalayala – land boundary (SK) Fig. 94 Raised mound with stone alignment at site M28-0019 (SK) Fig. 95 Sakiusa Kataiwai and guide in front of a fortification structure at site M28-0066 (SK) 32 Fig. 96 Ruins of the stone wall at site M28-0059 (SK) Fig. 97 Rock shelter and camp site for the Archaeology team at site M28-0069 (SK) 33 CHAPTER 1: INTRODUCTION The Fiji REDD+ REDD+ is an international programme so named for countries’ efforts to reduce emissions from deforestation and forest degradation, and foster conservation, sustainable management of forests, and enhancement of forest carbon stocks (Forest Carbon Partnership Facility, 2013) Fiji’s participation in the programme was formalised through the Fiji REDD+ Policy which the Fiji Government endorsed in December 2010 (Fiji Forestry Department, 2011). REDD+ in Fiji is supported and funded by the Secretariat of the Pacific Community (SPC), the Federal Ministry of Economic Co-operation and Development, Germany (GIZ) through the Programme Coping with Climate Change in the Pacific Island Region and the Fiji Department of Forestry. One of the REDD+ policy activities is the establishment of a pilot site for Fiji, for which the mataqali Emalu of the yavusa Emalu in Navosa Province, Viti Levu was selected. This programme focused on four key objectives: • To conduct a forest inventory and carbon pool measurement of the Emalu pilot site. The intended outcomes are to test the carbon pool measurement methodology recommended for Fiji, to contribute to the development of a national protocol for forest carbon measurements and monitoring, and to have a Tier 3 level carbon stock calculation. • To conduct rapid biodiversity surveys and develop instruments to monitor biodiversity changes in the pilot site. This will contribute to a national biodiversity monitoring protocol for REDD+ projects. • To undertake a socio-economic survey of the people of the Emalu forest using participatory appraisal tools, establish social and economic baselines and assess the social and economic implication of the REDD+ project following relevant international guidelines and standards. Indicators will be developed as part of the monitoring procedure. An assessment of drivers of deforestation and forest degradation of the Emalu REDD+ pilot site and the surrounding area will also be undertaken. • To carry out a cultural and archaeological mapping of the pilot site. To protect Fiji’s terrestrial biodiversity it is critically important that protected areas have sufficient connectivity to meet the area requirements of wide-ranging threatened species and ecological processes, and that these protected areas are managed as a coordinated system for effective conservation. 34 It is also vital to create awareness and appreciation of the importance of biodiversity amongst local communities. Equally important is a forward defence against emerging threats to biodiversity, by providing information to decision-makers, establishing support and incentives for biodiversity conservation, and building capacity to manage biodiversity resources. Survey Overview The South Pacific Regional Herbarium (SPRH) at the Institute of Applied Science (IAS), University of the South Pacific coordinated the biodiversity and archaeological surveys. The surveys were carried out in two phases; 17-26 July, 2012 and 18-26 March, 2013. The focus of the surveys was to map areas of high biodiversity and archaeological importance, develop monitoring protocols following Climate, Community & Biodivesity Alliance (CCBA) standards, and later contribute towards a national biodiversity monitoring protocol for REDD+ projects. Study Area The REDD+ pilot site is the land encompassed by the mataqali Emalu in the province of Navosa (Map 1). The Emalu area lies in the climatic transitional zone in central Viti Levu in the province of Navosa, which is adjacent to five other provinces; Nadroga, Ba, Namosi, Naitasiri and Serua. The Emalu site covers an area of 7, 347ha, predominately covered by closed forest. The Emalu land is under the ownership of the Draubuta landowners, a population of about 400 people living in more than 30 households in the village of Draubuta. They constitute five land-owning units, or mataqali, namely: 1. Mataqali Koroivabeka (Tokatoka : Naboseiwale, Narogairua). 2. Mataqali Naqio (Yavusa: Mota, Tokatoka: Nadurusila). 3. Mataqali Navesiqiyani (Tokatoka: Navesiqiyani). 4. Mataqali Naocotabua (Tokatoka: Naocotabua). 5. Mataqali Emalu (Yavusa: Emalu, Tokatoka: Emalu, Duiyabe). Situated on an alluvial plain, with the Nasa Creek running along the village and spilling into the upper reaches of the Sigatoka River, accessibility to Draubuta is a steep 1.5km descent by foot from the nearest dirt road. The main source of income is through commercial agriculture, mainly kava and taro. The Emalu land encloses two important catchment areas; (1) the Nasa catchment (on the drier part of Viti Levu) which drains into the Sigatoka river, and (2) the Mavuvu 35 and Waikarakarawa catchments (on the wetter part of Viti Levu) discharges into the Navua River. The terrain is primarily steep with the highest peak of Mt. Vonolevu having an elevation of 1,111m. The western side of Emalu forest, which is the drier part of the transition zone, borders the talasiga grassland. On the eastern side towards Namosi, which is the wetter part of the transition zone, are the closed rainforests. The underlying geology of the area is Tholo Plutonic Suite, an intrusive type of rock which intruded into the Wainimala Group and which is dated to the Upper Miocene period or later (Rodda, 1967, Rodda, 1976). The alluvial soils from the tributaries in the Navosa region are classified as Wainibuka sandy clay loam (Twyford and Wright, 1965, cited in King, 2004). These soils contain high phosphate levels (King, 2004) therefore making it optimum for planting. Rainfall is the major factor determining the different vegetation systems (requiring different microclimates) and on average ranges from 2000 to 4000 mm annually (Derrick, 1951) 36 CHAPTER 2: FLORA, VEGETATION & ECOLOGY Senilolia H. Tuiwawa, Hans Wendt and Marika V. Tuiwawa 2.1 Summary A total of 707 plant taxa were recorded for Emalu, including 286 bryophytes and lichens, 375 angiosperms, nine gymnosperms, and 35 ferns and fern allies. Altogether, the vascular and non-vascular taxa recorded from the Emalu site spanned 182 families and 391 genera. Over a third (39%) of the vascular plant flora recorded are endemic to Fiji, including 160 species of flowering plants, two fern and fern allies, and two gymnosperms. Ten taxa were encountered that are important focal species due to their rarity, botanical significance, very recent discovery in Fiji and inclusion in the IUCN Red List. Five principal vegetation types were identified: lowland rainforest, upland rainforest, cloud forest, dry forest and talasiga/grassland. The lowland rainforest, dry forest and the associated riparian vegetation were the most heavily impacted, indicated by the evidence of garden terracing and communal living and can be classified as anthropogenic primary forest. The upland rainforest and cloud forest were the least impacted vegetation types and can be described as relatively primary rainforests with comparatively higher tree species diversity and density. 2.2 Introduction There is literally little or no botanical information available for the Emalu area. This report is therefore the first documentation of vascular and non-vascular plants of the Emalu forest. The objectives of this survey were: • To document the range of vegetation types and typical botanical communities within the study area, • To identify the presence (or potential presence) of species or ecosystems of national and/or international significance, and, • To assess the susceptibility of the biological communities (in particular plant communities) to the potential impacts associated with the proposed project. 2.3 Methodology The first phase of the botanical work was carried out within the Tovatova catchment. The field work assessment began in the open grasslands about 500m upstream from Navitilevu Village along the Nasa Creek. This was necessary for comparative purposes towards the incursion of similar forest/habitat types at higher altitudinal areas within the Emalu boundary. 37 The second phase of the botanical work was carried out within the Mavuvu catchment from a basecamp located along Waikarakarawa stream. At Waikarakarawa, Mavuvu and Mt. Vonolevu, field work began at the lowland rainforest and progressed towards the cloud forest. Habitat analysis Prior to the fieldwork an initial assessment of the study area was made using satellite imagery. It was noted that areas closest to Navitilevu Village were covered in grassland, and that farming activities were further upstream along the Nasa River. Bamboo stands were plentiful in areas that have been left as fallow for long periods of time. Areas beyond these farms were covered with forest. The higher altitude mountainous landscape towards Mt. Vonolevu (1,111m) was earmarked as an area of interest. This area would have cloud forest vegetation, normally found at elevations above 850m, although some have been reported from mountain top from lower elevations e.g. Mt. Korobaba at 400m elevations (Kirkpatrick and Hassall, 1985). Cloud forest is a system known to have very unique plant life, and the forest was expected to be relatively intact. Flora Survey Opportunistic collections were made of mosses, liverworts, hornworts and lichens on different substrates. These were packeted for further processing and identification (Fig. 11, Fig. 12) at the South Pacific Regional Herbarium. Bryophyte collections of Harris (1967), Fife (2004), Pocs (2004) and Renner (2012) were cross-referenced including the most recent cryptogram work undertaken for Fiji (von Konrat et al., 2011, Lumbsch et al., 2011, Soderstrom et al., 2011). Native plant species, especially those endemic to Fiji, and any species flowering and/or fruiting, were opportunistically collected and documented whilst trekking through the area. Additionally plant species observed within the belt transects set up to quantitatively assess plant density, distribution and diversity within the forest types, were also documented. Collected specimens were deposited at the South Pacific Regional Herbarium where verification of specimen identification was later carried out. In validating the identification, the collection of fertile materials with special emphasis on the unknown groups i.e. bryophytes and focal species (on the IUCN Red List) was carried out. The distribution of these taxa within the area covered was also marked (Map 2) and recommendations for their protection are also highlighted. Plant names follow those used by Smith (1981, 1979, 1985, 1988, 1991) for gymnosperms and flowering plants, and those used by Brownlie (1977) and Perrie and Brownsey (2011) for the pteridophytes (ferns and fern allies). 38 Vegetation community structure In documenting the range of principal vegetation types and forest or habitat communities, the topographic and forest cover maps for Fiji, as well as satellite images were initially used to identify representations of the various plant communities. A reconnaissance of the area was carried out during which sites were selected for location of transects and plots. Quantitative assessment of the communities in different forest types was carried out using 10m x 10m plots along a 100m transect, a methodology used previously in other sites in Fiji (Mueller-Dombois and Fosberg, 1998, Tuiwawa, 1999). Plots were used to: • assess the presence and absence of focal species, • characterise associated vegetation communities with each principal vegetation type, and • confirm boundaries between biological communities encountered. Within each plot, every tree with a diameter at breast height (dbh) greater or equal to 5cm was measured, identified and recorded. The bole height, crown height and width were estimated for each tree enumerated. Ground cover vegetation was described, canopy cover estimated and in addition, the epiphytic flora recorded. Where feasible GPS locations and photographs of the vegetation were taken. Habitat characterization Habitat characterisations for forested areas relied on a number of sources of information, and was undertaken to produce a stratified hierarchical habitat classification. These sources of information and levels of classification were as follows: • plot data to determine vegetation community structure, • principal vegetation types (Mueller-Dombois and Fosberg, 1998), • 1:50,000 topographic map indicating terrain features, and • plot data to determine impact status and likely dominant species and their associates. The non-forested areas included open country (rivers, open riparian areas, roads, villages and settlements) and agricultural land (subsistence plantations, commercial farms, pastures and fallow land). These non-forested areas were not assessed in detail but were briefly described and highlighted in the vegetation map for the 39 project (Map 3 and Map 4). The assessment of the vegetation was focused more on forested area then on non-forested areas. For the forest or habitat typing process the most prominent topographical feature of the forested area was used and categorised as follows: • Slope - forested area found on slopes with a gradient ranging from 10 to 85 degrees. • Ridge top - forested area found on top or along a ridge or mountain range. The width of such ridges could range from a few centimetres up to 20m, with an unlimited length. • Flat - forested areas with a gradient ranging from 0 to 10 degrees. These areas also included raised river flats and flood plains. In addition to the forest typing, a system of assigning an impact status to each area was developed (Appendix 4). Whilst rudimentary, the aim of this system was to provide guidance on which areas of forest have previously been subjected to disturbance. The categories for the impact were as follows: • Low - Primary forest in which there is little or no evidence of disturbance; • Medium - Secondary forest that is recovering and displays some of the ecological complexity and function associated with a secondary and primary forest type or a transition forest type; and • High - Secondary forest that shows signs that the disturbance is recent and ongoing. 2.4 Results and discussion 2.4.1 Diversity of non-vascular plants (bryophytes) and lichens A total of 286 non-vascular plant taxa were collected, recorded and assigned to 72 families, and 133 genera (Appendix 1). The largest families for each of the main bryophyte groups were Neckeraceae (for mosses), Lejeuneaceae (for liverworts), Anthocerotaceae (for hornworts) and Graphidaceae (algal symbionts or lichens). Bryophytes and lichens in the area are typical features in the various systems given the high elevation. The diversity and density is, at a glance, expectedly low given that the study area is on the dry side of the island. The collections made will all contribute to documented range extensions of these species. These records will be incorporated in the planned publication of the Flora of Bryophytes for the Fiji Islands, currently in preparation. These non-vascular groups of plants are also fundamental to climate change research. 40 2.4.2 Diversity of vascular plants A total of 421 taxa were recorded, of which 395 taxa were identified to species level and 36 taxa to genus level. Of the total taxa recorded there were 375 angiosperms (315 dicots and 60 monocots), 35 ferns and fern allies, and nine gymnosperms. For those taxa identified 350 were native, which comprised 185 indigenous species (145 angiosperms, 32 ferns and eight gymnosperms) and 165 endemic species (160 angiosperms, two ferns and two gymnosperms). A total of 71 exotic species (48 dicots, 22 monocots and one fern), were also recorded. Ten taxa were encountered all of which were native and considered important focal species. The full species checklist is provided in Appendix 2. 2.4.3 Focal Species There were a total of ten species encountered which were considered important due to their rarity, botanical significance, their very recent discovery in Fiji or their IUCN Red List status. The locations of some of these ten focal species within the study area are shown on Map 2, and photographs of them in Fig. 1-Fig. 10. Acmopyle sahniana Buchh. & N.E.Gray (Fig. 1) The species is endemic to Fiji and found only on the island of Viti Levu. On this survey a relatively large and viable population was recorded in the upland vegetation of the Mavuvu Creek at 600-700m. In Fiji, this species is quite restricted in distribution with an estimated 150 trees recorded to date from the highlands of Namosi, Naitasiri and Ra Province and is currently classified as Critically Endangered on the IUCN Red List (Thomas, 2013). A. sahniana is locally known as kautabua or drautabua and its greatest threats are from mining or logging operations. Its occurrence in the lower and upper Mavuvu catchment is a promising confirmation of a new population of A. sahniana and more importantly, a range extension of its current distribution. Degeneria vitiensis I.W.Bailey & A.C.Sm. (Fig. 2, Fig. 3) This species and the two others within the genus are endemic to Fiji. Degeneria is the sole genus of the family Degeneriaceae, also a Fiji endemic, and one of the oldest flowering plant families in the world. D. vitiensis is a timber tree found in lowland and upland areas on the islands of Viti Levu, Vanua Levu and Taveuni, and is categorised as Vulnerable on the IUCN Red List (World Conservation Monitoring Centre, 1998). D. vitiensis is locally known as vavaloa or masiratu and its greatest threats are from the clearance of forest for agriculture and human habitation. Its occurrence in the upper parts of the lowland and upland area of the study area (590650m) suggests a range extension of its current distribution. 41 Macodes cf. petola (Fig. 4) This orchid was not documented in Smith’s Flora Vitiensis Nova (1979), and the closest occurrence of the genus is in Vanuatu. Its occurrence in Fiji is seemingly the result of long distance dispersal but given evidence of human habitation in adjacent lower rainforest, it is likely that the taxon was part of an early introduction to Fiji by early settlers. This species was collected for the second time in Fiji since 2005 and was recorded in the upland rainforest vegetation on the slopes adjacent to the ridges, at 650-750m. Further research on its population structure and distribution is required to confirm the mode of introduction into Fiji’s archipelago. Nervilia cf. punctata (Fig. 5) This species of orchid is rare in Fiji, known previously from a single collection on Mt. Korobaba in 1979. Outside of Fiji it is also known to occur in Borneo and Sumatra. This terrestrial orchid was recorded on slopes of the lowland rainforest vegetation at about 450-550m. Equisetum ramosissimum (Desf.) subsp. debile (Roxb.) Hauke (Fig. 6) This species of fern ally is not common elsewhere apart from Viti Levu with extensions eastwards into the tropical Pacific. There are only three records of the species from Ba, Naitasiri and Serua. It is recorded as common along the edges of river and creeks. It was recorded in the riparian vegetation off the banks of Nasa River, at about 500m and is a strong indicator of an intact riparian system. Metroxylon vitiense (H.Wendl.) Hook. f (Fig. 7, Fig. 8) This species of palm is endemic to Fiji and is locally referred to as soga. It is common on the south east of Viti Levu and Vanua Levu but is highly threatened due to its harvesting for food (palm heart) and for leaves for thatching. Its habitat (swamp) is targeted for land reclamation both for agriculture development and human habitation. Very few trees were observed along the river embankments in the lower Mavuvu River catchment. Cyphosperma tanga (H.E.Moore) H.E.Moore (Fig. 9, Fig. 10) This palm is endemic to Fiji and is locally referred to as taqwa and is one of the most threatened palm species in Fiji due to logging and establishment of plantations (Watling, 2005). Its only other known wild population occurs along the western slopes of Mt. Tomaniivi (Fiji’s highest mountain, 1323m). The second viable population, encountered during this survey, lies just outside the eastern Emalu boundary. 42 Alpinia parksii (Gillespie) A.C.Sm. This species of coarse herb, unlike Alpinia boia, is uncommon. It grows up to 5m high along river banks and ridges. It becomes more prominent further up along ridges and slopes. Its leaves are used for thatching and it is locally known as locoloco or boiaboia. Balaka diffusa Hodel This species of palm is known to be restricted to the Nabukavesi River catchment on Viti Levu. Its occurrence in the cloud forest of Mt. Vonolevu is a range extension of the current population. It is an endemic species, locally referred to as balaka, and is the largest of all balaka in Fiji in terms of its height and girth. Geanthus cevuga (Seem.) Loesener This species of ornamental plants is native to Samoa (where it is common) and Fiji (where it is rare). It was thought previously to only occur in Namosi but recent findings have confirmed its occurrence in other parts of Fiji as an ornamental. The leaves are used to scent coconut oil and necklaces and as a food spice. It is locally referred to as cevuga damu. In Emalu it was found in an old village site growing alongside sacasaca, moli kania and koka trees. 2.4.4 Vegetation community structure Of the nine principal vegetation types recorded for Fiji, five were encountered in the study area: lowland rainforest, upland rainforest, cloud forest, dry forest and talasiga grassland. The dry forest refered to here is a mesic forest. All vegetation types except the talasiga grassland were quantitatively assessed. The detailed results of the quantitative assessment of plots in these different vegetation types are given in Appendix 3. In total 136 plots were analysed; 40 in lowland forest, 41 in upland forest, 44 in dry forest and eleven in cloud forest. Within each of these vegetation types the plots were distributed over a variety of forest habitats. Vegetation type 1: Lowland rainforest Lowland rainforest is typically found on the windward side of large islands from sea level to 650m, with annual rainfall of over 2000mm. In Emalu the lowland rainforest is restricted to the Mavuvu and Waikarakarawa catchments. Overall, the forest in this principal vegetation type is best described as primary forest. All tree species recorded from the plots are either endemic or indigenous species and none of the tree species associated with human habitation was encountered or even observed outside plots. Stocking of good quality timber tree species is high and so is the size of merchantable tree species. 43 Three different forest types were observed and quantified using 40 plots in four transects. The forest types were characterised as follow: Ridge top forest type The 20 plots assessed contained an average of 26 (range 9 to 54) trees per plot, and an average of thirteen (range 7 to 23) species per plot. The most common species was Garcinia myrtifolia (laubu), which was present in more than 50% of the plots assessed. The largest individual trees were Decussocarpus vitiensis (amunu) with a dbh of 107cm, followed by Endospermum macrophyllum (kauvula) with a dbh of 95cm and Calophyllum vitiense (damanu) with a dbh of 82cm. The average dbh was 15cm (range 5-107cm). Overall, the twenty plots assessed had no single dominant species but the combined biomass (as reflected in the dbh) of D. vitiensis, E. macrophyllum, and C. vitiense gave a relative dominance of 52%. Slope forest type The seventeen plots assessed had an average of nineteen (range 11 to 28) trees per plot, and an average of eleven (range 7 to 16) species. Garcinia myrtifolia occurred in more than 60% of the plots assessed, and was the most common species. The average dbh of trees in the plots was 15cm (range 5-100cm). The largest tree documented in the plots was Endospermum macrophyllum with a dbh of 100 cm followed by Storckiella vitiensis (marasa) with a dbh of 78 cm. There was no single dominant species as the tree sizes were evenly distributed amongst all species, but the combined biomass (as reflected in the dbh) of E. macrophyllum, S. vitiensis and Calophyllum vitiense gave a relative dominance of 51%. River flat forest type The three plots assessed had an average 23 (range 15 to 33) trees per plot, and an average of fourteen (range 12 to 16) species per plot. The most common tree species were Garcinia myrtifolia, Garcinia pseudoguttifera and Endiandra gillespiei. The average dbh of trees in the plots was 18cm (range 5-131cm). The largest tree encountered was Decussocarpus vitiensis with a dbh of 131cm, and this was also the dominant species with a relative dominance of 86%. Vegetation Type 2: Upland Rainforest The survey on this principal vegetation type was restricted to forested areas at elevations of 650-850m. Three forest types were observed and quantified using 41 plots in six transects, and were characterised as follows: Ridge top forest type A total of 24 plots along three transects were used to analyze this forest type. There was an average of 30 trees (range 17-55) recorded in each plot, and an average of 44 eighteen species (range 12-29) per plot. The most common species were Syzygium spp. (yasiyasi) and Litsea sp. (lidi). The largest tree encountered was Agathis macrophylla (dakua makadre) with a dbh of 152cm. Other large trees included Syzygium sp. (150cm) and two other A. macrophylla (140, 111cm). The average dbh was 18cm (range 5-152cm) with the dominant species being A. macrophylla (45% relative dominance). All dominant trees recorded from each plot are important timber tree species with dbh ranging from 31cm to 152cm and these include Calophyllum vitiense, Dacrydium nidulum (yaka), Syzygium spp., A. macrophylla, and Burckella spp. (bau). Together these five species comprised approximately 75% of the biomass of all trees in this forest type. Slope forest type Fifteen plots along two transects contained an average of 28 (range 10 to 40) trees per plot (100m2) with an average number of 17 (range 8 to 25) species per plot. The most common species were Gironniera celtidifolia (sisisi) and Cyathea spp. (balabala) whilst other common species in some of the plots included C. vitiense and Saurauia rubicunda (mimila). The largest tree encountered was Garcinia myrtifolia with a dbh of 89cm. Other large trees recorded included Endospermum macrophyllum (dbh of 71, 65cm), A. macrophylla (69cm) and C. vitiense (68, 65cm). The average dbh was 19cm (range 5-152 cm). Overall there was no dominant species for this forest type, but across the plots the trees that together made up 80% of the total biomass were E. macrophyllum, A. macrophylla, Syzygium spp., C. vitiense, Semecarpus vitiensis (kaukaro), Degeneria vitiensis (vavaloa, masiratu) and Buchanania attenuata (maqo ni veikau). Vegetation Type 3: Cloud Forest On Emalu the cloud forest was restricted to mountain tops and ridges above 850m and is almost always shrouded in clouds. Precipitation is high and temperature is generally much lower with trees generally stunted and heavily covered with bryophytes. A series of eleven plots placed along a fragmented transect over a slope/ridge towards the summit of Mt. Vonolevu (1,111m) was used to quantitatively assess this forest type. An average of 42 trees per plot (range 31 to 70) with an average number of 15 species per plot (range 11 to 22) was recorded for the area. The most common species were Syzygium spp. and Cyathea spp. The largest tree, with a dbh of 181cm, was Syzygium sp. Other large trees included Calophyllum vitiense (60cm dbh) and Degeneria vitiensis (43 cm dbh). The average dbh was 12cm (range 5 -181cm) and the average bole height was 1.8m (range 1 to 5m). C. vitiense and Syzygium sp. were dominant species from some of the plots assessed but overall D. vitiensis and C. vitiense were the dominant species with greater than 80% relative dominance. 45 Vegetation Type 4: Dry Forest The native dry forest vegetation type on the leeward side of Viti Levu has been almost completely destroyed by combined grazing, agriculture and fire. The survey on this principal vegetation type was restricted to forested areas adjacent to the grassland in elevations ranging from 250m to 650m within the Nasa catchment. In a seasonal dry forest the mean annual rainfall is about 2,000mm. Three habitat or forest types were quantified using 44 plots in six transects. The forest types and their characteristics were as follows: River flat forest type The nineteen plots assessed along three transects held an average of fifteen (range 7 to 24) trees and an average of seven species (range 4 to 11) were present within a plot. The most common tree species were Syzygium malaccense (kavika) and Citrus grandis (moli kania). The largest trees were C. grandis and Dysoxyllum richii (tarawau kei rakaka), having a dbh of 89cm and 86cm, respectively. The average dbh of trees was 21cm (range 10-89cm). The dominant species from some of the plots assessed was D. richii with a relative dominace of 80% and S. malaccense with 69%. Overall, there were no dominant species across the haitat as the biomass was fairly evenly distributed amongst the larger trees. Most of the trees discussed above are associated with human habitation. Ridge top forest type Within the ten plots used to analyze this habitat there was an average of 35 trees (range 21 to 51) and sixteen species (range 10 to 25) per plot. The most common species was Litsea sp., followed by Garcinia myrtifolia and Citrus grandis. The largest tree observed was Ficus obliqua (baka ni viti) with a dbh of 132cm. Other large trees included several Bischofia javanica (86, 77 and 76cm dbh) and Dysoxyllum sp. (76cm dbh). The average tree dbh was 23cm (range 10-132cm). The dominant trees from some of the plots assessed were F. obliqua and Dysoxyllum sp. with a relative dominance of 57% and 53%, respectively. Overall there was no dominant tree species in this habitat despite B. javanica having a relative dominance overall of 48%. Like the river flat above, the presence of tree species like C. grandis, S. malaccense and B. javanica is indicative of past human habitation and activity in this area. Slope forest type Fifteen plots along two transects were used to analyze this habitat. An average of 23 trees (range 8 to 37) with an average number of ten species (range 6 to 14) per plot was recorded. The most common species was Litsea sp. with the largest tree encountered being F. obliqua with a dbh of 148 cm and other large trees that included Dysoxylum quercifoliuma and Neonauclea fosteri (vacea) with dbh of 120 and 113cm, respectively. The average dbh was 22cm (range 6 to 148). The dominant species 46 assessed were D. quercifolium, F. obliqua and N. fosteri all with relative dominance of greater than 74%. Overall, the dominant species for this forest type were the Dysoxylum spp. (4 taxa) and Ficus obliqua which together comprised 75% of the total biomass in this habitat. Overall, the forest or habitat types found in this principal vegetation type are best described as an anthropogenic primary forest as most of the more dominant and common tree species are associated with human activity. Other species not found in the plots that testify to this include Codiaeum variegatum (sacasaca), Cordyline fruticosa (qai), Schizostachyum glaucifolium (bitu dina) and Veitchia joannis (saqiwa, niuniu). Vegetation Type 5: Talasiga Vegetation Grassland/talasiga habitat type The grassland is restricted to the slopes and ridge tops and is mostly made up of the grass Pennisetum polystachyon (mission grass), Sporobolus spp. (wire grass), Dicranopteris spp., (qato or bracken ferns), Pteridium esculentum, Miscanthus floridulus (gasau or reed) and many other smaller weedy plants. The general lack of tree cover is characteristic of such a landscape. The grassland is regularly set on fire to allow for new re-growth of grass for use as fodder for cattles and horses. Areas closer to the edge of the gully forest are used for subsistence farming. Woody shrubland habitat type This vegetation was observed growing between the grassland and the forest edge and is also referred to as savannah grassland. The area was dominated by secondary pioneer plant species like Commersonia bartramia (sama), Parasponia andersonii (drou), Tarenna sambucina (vakaceredavui), Trema orientalis, Dillenia biflora, Decaspermum vitiense (nuqanuqa) and larger patches of Schizostachyyum glaucifolium and M. floridulus. This habitat is where active agricultural activities are occurring both at the subsistence level and on a semi-commercial scale. Gardens or plantations of yaqona, banana and taro are common and so are patches of abandoned (fallow) gardens. Such activity expands the grassland habitat types into forested areas and as noticed from the survey will continue to do so especially with increasing pressure from subsistence farming and a growing population. River bank/riparian habitat type The vegetation along the creek and river system that is found adjacent to the grassland was mostly dominated by important introduced and native fruit trees. Also found here were important trees species that have cultural uses, such as Inocarpus fagifer (ivi, chestnut), Pometia pinnata (dawa), several species of Citrus spp., Artocarpus altilis (uto, breadfruit), Cocos nucifera (niu), Spondus dulcis (wi), Syzygium malaccense (kavika) and Terminalia catappa (tavola). Other culturally important trees 47 include Aleurites moluccana, Bischofia javanica, Cananga odorata (makosoi), Cordyline fruticosa (qai) and Euodia hortensis (uci). 2.5 Conclusions and recommendations The discovery of the focal species detailed above, in particular, the priority conservation species on the IUCN Red List, as well as rare orchids, parasitic plants, and palms is an indication of the micro-sensitivity and function of the upper catchment areas that have yet to be fully explored, and which needs protecting. Based on current knowledge of these taxa, any level of development (logging or agricultural) could seriously affect their existence, thus more effort needs to be invested in their protection. Overall the presence of a large number of these high value conservation species within the Nasa, Mavuvu and Waikarakarawa Creek catchment highlights the biodiversity importance of Emalu. For Viti Levu (and for Fiji as a whole) it is an area with the highest concentration of important plants of conservation priority. In terms of the vegetation, the level of human impact decreases as you move further inland or away from current human habitation, and also towards the higher altitudes of Mt. Vonolevu. Demarcation of these habitat types is quite obvious in the grassland vegetation but almost near impossible to detect under heavy canopy in the forested lowland and upland vegetation including the riparian system running across these vegetation types. It is recommended that more extensive future surveys be carried out in these areas. 48 CHAPTER 3: HERPETOFAUNA Nunia Thomas and Isaac Rounds 3.1 Summary This report documents the first record of herpetofauna biodiversity within the Emalu study area. Emalu, like many other parts of Viti Levu, contains habitats ideal for herpetofauna. Despite weather and time constraints this survey produced results similar to surveys carried out in other areas of Viti Levu, encountering six species of herpetofauna: three endemic, two native and one invasive. Further surveys will very likely reveal the existence of additional herpetofaunal species. 3.2 Introduction To date, there has been no documented information on the herpetofauna of the Emalu area. This report is therefore the first documented study of these organisms. The objectives of this baseline herpetaofauna survey were to: • Document the herpetofauna diversity in the study area. • Identify ideal herpetofauna habitat. • Trial herpetofauna survey methods with recommendations for long-term monitoring in the study site. 3.3 Methodology Field Assessment During the survey periods the weather was generally fine every day with occasional and sometimes heavy afternoon showers. At the Waikarakarawa survey site heavy rain on one day resulted in flashflooding. Weather conditions dictated the number of days, type of traps and survey methods conducted, and these are summarised in Appendix 5. Average air temperatures recorded for the nocturnal surveys were 20.6°C and 26°C for the Nasa and Waikarakarawa catchments respectively. Habitat Assessment The objective of the expedition was to record all herpetofauna species captured and/or observed within the study site; and develop appropriate long term monitoring methods. For this reason, all potential habitats within good forest cover and outside of the forest were surveyed. The study area generally had ideal herpetofauna habitats: riparian vegetation, ridge forest, forest floor cover of leaf litter and rotting wood, and trees with dense epiphyte cover. Systematically, the survey 49 targeted a ridge habitat, riparian forest habitat and lowland forest habitat. A total of ten sites were intensively surveyed (Map 5). Diurnal and Nocturnal Herpetofauna Surveys There are several accepted methods for herpetofauna surveys that generally fall under two categories: opportunistic diurnal and nocturnal searches and trapping, and standardised nocturnal and diurnal searches and trapping. A summary of the methods used in this survey is given in Appendix 5 Herpetofauna surveys in Fiji have generally been opportunistic, but their methods standardised to allow for comparison between sites. Other long term herpetofauna monitoring plots on Viti Levu: the Sovi Basin Conservation Area and the Wabu Forest Reserve are limited to nocturnal frog searches. Because of the cryptic and heliophilic nature of Fiji’s reptiles; and Fiji’s climate, survey and trap methods are wide ranging, albeit limited by weather conditions. The herpetofauna surveys in the Emalu study site consisted of three techniques but were constrained by the rainy weather. These are described below: Standardised sticky trap transects whereby sticky mouse traps (Masterline®) are laid out at intervals along a transect. Each station is designated a station number (110) with a cluster of three traps per station for three placements to represent local habitat structure at each location (tree, log and ground). Transects are laid out along identified ideal habitats e.g. ridge tops and along river banks/ riparian vegetation. Leaf litter cover, canopy cover and undergrowth are all recorded. Left overnight, traps are checked regularly for captured specimens. These traps target both terrestrial and arboreal species. Frogs and geckoes are active and more visible at night. Standardised (time constrained) nocturnal visual encounter surveys (2 hours) in ideal frog habitat are used. This method gives an encounter rate for comparison with other surveys within Fiji. Search efforts with a minimum of two observers at any one time targeted streams and adjacent banks/ flood plains. Opportunistic Visual Encounter Surveys outside of the standardised searches allow for a record of presence/absence of herpetofauna. Skinks are more likely to be seen during the day, particularly during hot and sunny conditions. Opportunistic diurnal surveys were conducted along trails enroute to the camp site, vegetation plots, along stream edges, and in forest habitats surveyed by other survey teams in the expedition. Search efforts targeted potential skink habitat and frog and burrowing snake diurnal retreat sites. The diurnal surveys began at 09:00 and ended at 15:00 on each of the survey days. The team had a minimum of two searchers at any one time. Environmental variables such as air temperature, water temperature, weather conditions (rain/fine) and cloud cover (%) were taken at the beginning and end of 50 each nocturnal survey. Habitat characteristics and other basic ecological and biological information of herpetofauna found were recorded. Observations on possible threats to herpetofauna species and populations were also noted. Geographic coordinates of survey sites were captured using the Thales Mobile Mapper Pro Navigator and Garmin GPSmap 60CSx. 3.4 Results Based on the current knowledge of herpetaofauna on Viti Levu there are a total of 26 species that could potentially occur in the study area (Appendix 6). Prior to the survey a target list of 12 of these species was drawn up, based on their endemism and conservation status. In total six species were encountered over the course of the survey, including three of the 12 target species. These were the green tree skink (Emoia concolor), the bronzeheaded skink (E. parkeri) shown in Fig. 13 and the Fiji tree frog (Platymantis vitiensis) shown in Fig. 14. 3.4.1 Nasa catchment A total of six species were captured during the survey of the Nasa catchment. Three of these were endemics (Platymantis vitiensis, Emoia parkeri and E. concolor); two were native (Nactus pelagicus, Fig. 15 and Gehyra vorax, Fig. 16); and one was an invasive species (Bufo marinus, Fig. 64). These findings were the result of over 14 man-hours of diurnal survey, 49 hours of sticky trapping and six man-hours of nocturnal surveys. Two species were reported to occur by local villagers: the endemic banded iguana (Brachylophus bulabula) and the Pacific boa (Candoia bibroni), but were not encountered during the expedition. Herpetofauna were observed at all the three habitat types targeted; but at only two of the survey sites. The majority of the species were encountered during opportunistic surveys (4 species); with lower encounter rates for the sticky traps (2 species), and standard diurnal (2 species) and nocturnal surveys (1 species). Interestingly, the sticky traps did not yield any rats or invasive ants – which have been encountered in other survey sites on Viti Levu. 3.4.2 Waikarakarawa and Mavuvu Catchments For these two catchments the same six herpetofauna species that were encountered in the Nasa catchment were also found here. The survey of the Waikarakarawa and Mavuvu catchments consisted of 8 man-hours of diurnal survey, 14 hours of sticky trapping and 3.3 man-hours of nocturnal surveys. 51 One of the main target species known to occur from historical records to occur in the area of Waikarakarawa catchment, the Fiji burrowing snake (Ogmodon vitianus), was not encountered during this survey. 3.5 Discussion This report documents the first record of herpetofaunal diversity in the Nasa, Waikarakarawa and Mavuvu catchments on land belonging to the mataqali Emalu. Fiji’s terrestrial herpetofauna are significantly impacted by introduced mammalian predators. This is particularly true for Viti Levu which has experienced the extirpation of two large terrestrial skinks (Emoia trossular and E. nigra) in the presence of the mongoose, feral cats, feral pigs and rats. The presence of the Fiji Tree Frog, Platymantis vitiensis (Fig. 14) in the study area is of exceptional interest – this is a new record for the area and is possibly the westernmost record of the occurrence of the species (in relation to the wet parts of Viti Levu) in Southern Viti Levu to date. The apparent absence of the common ground skinks such as E. cyanura both within the study area and in the agricultural land is interesting and warrants more intensive searches both within and outside the forested areas, taking into consideration that weather impacts the observer’s ability to find these species. The low encounter rates and low diversity of herpetofauna in the study sites do not necessarily mean an absence of the species. Low encounter rates of heliophlic species is not uncommon in Viti Levu’s forests; and is typical globally in rainforest habitats (Ribeiro-Junior et al., 2006, Ribeiro-Junior et al., 2008). Consequently, there are efforts to develop better quantitative survey methods of forest dwelling herpetofauna – and these will be considered in the development of an appropriate long term monitoring method for the Emalu study area. However, sites to target for the establishment of long-term monitoring plots should ideally be adjacent to the vegetation sample plots, as done so in this study because of the dependence of native herpetofauna on the health of the forest. Herpetofauna survey sites will also be extended to the nonforested parts of the study area to assess the presence/absence of the more common native ground skinks in the area. 3.5.1 Indicator species Selecting which herpetofauna species could act as indicators of high conservation value forest was problematic for several reasons. Firstly, the tree frog (P. vitiensis) was not a suitable indicator species as it was found all over the study area from disturbed areas right up to the cloud forest. Furthermore, skinks or geckos are not ideal indicator species as they are cryptic. The invasive cane toad (B. marinus) was found everywhere except the cloud forest. 52 3.6 Recommendations Considering that baseline survey within the Emalu forest has now been conducted, the best option available will be to build on this by conducting subsequent surveys and standardising the survey techniques especially for the sticky traps and frog surveys, carrying them out over different seasons and assessing species densities. Any changes in terms of presence/absence and density over time will indicate the status of the forest. It is recommended that these intensive and dedicated surveys focus on a particular area or along standard transects. It is also recommended that tree climbing techniques be used to enable better capture rates of cryptic skinks and gecko species. 53 CHAPTER 4: AVIFAUNA Alivereti Naikatini 4.1 Summary The main objectives of the study were to compile a checklist of the birds and bats species present and observed, and determine the presence of species of high conservation importance (focal species) for monitoring in the future. The assessment methods used during the survey were the Point Count Method with a fixed radius of 50m; evening (dusk) bat counts using a Bat Detector device to detect presence of micro-bats; interviewing of local guides, and opportunistic surveys. About 4000 minutes of avifauna studies were conducted during the two surveys where 59 points were assessed in 2012 and an additional 37 points in 2013. A total of 35 species of birds were recorded during the two surveys which included 25 endemic and one exotic species. Two species of bats were also recorded during the surveys. Ten focal species were identified (eight bird species and two bat species). The bird diversity of Emalu is comparable to the four largest Important Bird Areas (IBAs FJ07, FJ08, FJ09, and FJ10) on Viti Levu and ranks even higher in terms of bird density. 4.2 Introduction Fiji’s bats play an essential role as seed dispersing agents, major pollinators, and insect control agents in the rainforest and other terrestrial ecosystems (Palmeirim et al., 2007). However, bats are understudied in Fiji in terms of ecological research and there is little public awareness of their role and importance. Bats are the only native terrestrial mammals of Fiji and six species occur in Fiji, four of which are native and two endemic (Flannery, 1995, Palmeirim et al., 2007). Four bat species are listed as threatened (Palmeirim et al., 2007). Like bats, birds are also very important indicators of the forest health. They are important seed dispersers, pollinators and insect control agents. In a pristine forest system, one would expect to find more native and endemic species. There are 68 species of land birds found in Fiji, eleven of which are introduced species. No previous bird or bat surveys have been carried out in the Emalu area. A few recent studies were carried to areas close to Emalu, including a bat survey of the Tatuba caves in the vicinity of Saweni in the Namataku District (Palmeirim et al., 2007). The most recent bird survey close to the study area was carried out by Birdlife International (Fiji) in the Southern Viti Levu Highlands (IBA FJ10), which is to the south of Emalu, Sovi Basin (IBA FJ08) to the east and the Rairaimatuku Plateau (IBA FJ09) to the north (Masibalavu and Dutson, 2006). 54 The main objectives of this survey were to: • Provide a checklist of all avifauna species (birds and bats) present in the site, • Highlight species that are of conservation importance (focal species), • Provide preliminary abundances of species present, and to • Develop a methodology for avifauna monitoring work in the future. 4.3 Methodology The survey methods used in the survey were the: • Point count method (for both bats and birds), • Evening counts for bats, • Bat detector surveys in the evenings, • Opportunistic surveys, • Interviews with local communities. The point count method was the most commonly used method to survey for the bats and birds. It was only carried out in the morning and afternoons when birds are more active. Counts in a point were restricted within a 50m radius for a period of ten minutes according to an established methodology (Naikatini, 2009). Stations were not randomly located, due to the rugged terrain of the area, but were placed along tracks and accessible areas. To maximise the size of the area covered, points were placed at least 200 – 400m apart. This was also done to minimise the likelihood of double counts. Each morning or afternoon session would last two to four hours depending on the weather. All birds detected within the 50m radius area were recorded and GPS locations noted. The inclusion of as many sub-habitats as possible – riparian, flat, slope, ridge and ridge top - in disturbed and undisturbed areas was attempted. The total number of points, birds and species recorded were tabulated to give the relative abundance or density of each species. Bat surveys were also carried out by conducting bat counts in the early evenings (from about one hour before sunset – 17:00 to 18:00) from a good lookout or open area to determine what bat species were flying over and their direction of flight. The total number of bats counted in an hour would give an idea of the bat activity and abundance in the study area. Bat detectors were also used in the evenings near the camp site by walking along the trail and stopping at various points where there was an opening or gap in the canopy and pointing the bat detector into the direction of the sky. The bat detector enabled us to tune to the frequencies at which the two micro-bat species (present in Fiji) would be detected if they flew over or were feeding 55 nearby. These surveys were only carried out for about an hour between 1900 and 2200 hours, and also when weather conditions were favorable for such surveys. Opportunistic surveys were also conducted whilst travelling from one point station to another, or whilst travelling within the area from one base camp to another. Interviews with the local guides were carried out on some evenings. Local guides knew the area well, including where the main bat roosts are located, as well as the species of birds they may have encountered in the area previously. 4.4 Results and discussion In total approximately 4000 minutes were spent actively conducting bat and bird surveys, and over 70 hectares were covered using the point count method. A total of 35 species of land birds and two species of bats were recorded in the study site, and these are listed in Appendix 7. Identifications were verified using a published field guide (Watling, 2001). A total of 96 point stations were surveyed during the 20 days of survey. These point stations (shown on Map 6) were located in the different subhabitat types found with the main vegetation systems; lowland rainforest (<600m elevation), upland rainforest (600-800m elevation) and cloud forest (>800m elevation). A table of the location and habitat of each station and a summary of the species diversity and bird abundance is provided in Appendix 8 Of the 35 species of land birds recorded, one is an exotic species and 25 are endemic to Fiji. The exotic species, commonly known as the red-vented bulbul (Pycnotus cafer) on the IUCN Red List as being a species of Least Concern (Birdlife International, 2012a) and is more common on the western edges of the Emalu site. Eight species of birds recorded are listed as focal bird species for conservation in Fiji because of their status (Appendix 9). Stations where bird and bat focal species were recorded are marked on (Map 7). The long-leggd warbler (Fig. 18), classified as Endangered on the IUCN Red List (Birdlife International, 2012b) was found to be common in the upland and undisturbed riparian vegetation; an example of this habit is shown in Fig. 17. Sightings of the collared lorry, Phigys solitarius (Fig. 19), and the golden dove, Ptilinopus luteovirens (Fig. 20), were also made during the survey. Only two species of bats were recorded throughout the survey; Pteropus samoensis, the Samoan flying-fox and P. tonganus the Pacific flying-fox. Pteropus samoensis (Fig. 21) is listed in the IUCN Red List as Near Threatened (Brooke and Wiles, 2008). P. tonganus (Fig. 22) was not commonly encountered in the study area in 2012 however it was common in the areas surveyed in 2013 and seemed to be more common in the upper Mavuvu catchment. Here, two of the guides were able to catch seven bats one evening in just one hour, with sticks. The guides also mentioned that the upper Mavuvu area was well known for bats. No bat roost for P. tonganus was sighted in the Emalu REDD+ site. The closest roost was located outside the study area, and 56 consisted of over 1000 bats. There could be roosts located in the forested areas on the Namosi side of Emalu however time constraints did not allow for a confirmation of this. No micro-bats were detected using the bat detectors. However this should not imply that there are no micro-bats foraging for food in Emalu as there needs to be more follow up studies to confirm this. Table 1. Comparison of Emalu to the four largest Important Bird Areas (IBAs) of Viti Levu. Emalu & IBAs Area Native species Endemic Emalu 57km² 34 25 Greater Tomaniivi 175km² 34 24 Rairaimatuku 287km² 34 24 Sovi Basin 407km² 34 24 Viti Levu Southern Highlands 670km² 34 24 Table 1 shows that native bird species diversity in Emalu is comparable to Viti Levu’s four largest Important Bird Areas (IBAs), and has a slightly higher number of endemic species. In terms of species density it is the highest ever recorded for anywhere in Fiji to date. 4.5 Recommendations To better understand the ecology and abundance of the avifauna of Emalu there is a need to carry out further monitoring work. To monitor the bird and Pteropus samoensis populations, we recommend the use of the point count method with a fixed 50m radius and 8-10 minute counts per station. For best practice, future monitoring surveys should include approximately 70 point count stations spread out over the various vegetation systems present; cloud forest (10 stations), upland rainforest (20 stations), lowland rainforest (20 stations), grassland (10 stations), secondary forest(10 stations), and ensuring within these that there is coverage across the different subhabitats (riparian, flat, slope, ridge, and ridge-top). To monitor for the other bat species a further survey of the area is needed to locate the roosts, both in the area and the surrounding forest systems as it is most likely that bats roosting outside the Emalu site will be flying in to forage for food, e.g. from the P. tonganus roost at Vurunamasima near Navitilevu Village and the Notopteris macdonaldi roost in Saweni (Navosa) and Nabukelevu (Serua). These roosts are both about 10 km from the edge of the Emalu site. When the roosts are located, population counts will be performed for monitoring purposes. 57 The Emalu REDD+ site should be an area of conservation priority for the Government of Fiji. As yet Fiji has no dedicated bird reserve and it is recommended that, given the species diversity and high endemism levels as well as its ideal location, the Emalu area be designated an established protected bird area. Conservation should be a priority and logging should not be permitted in this area if you take into account the true value of the site ecosystem function, rich biodiversity, cultural and spiritual importance, all of which are invaluable monetarily. 58 CHAPTER 5: TERRESTRIAL INSECTS Hilda Waqa-Sakiti 5.1 Summary A total of 26 families of the target taxa Coleoptera (beetles) was recorded in the Emalu areas, as well as a high abundance of the family Formicidae (ants). These taxa provide critical ecosystem services in forests systems such as soil processing, decomposition, herbivory, pollination and seed dispersal. Insects of conservation value recorded from Emalu included: Hypolimnas inopinata (a rare and endemic butterfly), Nysirus spinulosus and Cotylosoma dipneusticum (rare and endemic stick insects) and Raiateana knowlesi (the rare and endemic cicada). These findings suggest that the Emalu area is pristine and an important site for rare insects on Viti Levu. 5.2 Introduction This was the first entomological survey to be conducted within the Emalu forest. A baseline survey was carried out with the primary aim of determining the general diversity of insects in the area. The survey targeted a diversity of habitats (slopes, flats, ridges and riparian areas) and vegetation types (grassland, lowland, upland and cloud forest). A variety of collection techniques (light traps, leaf litter sampling, pitfall trapping, 1km transect counts, active and opportunistic surveys) was employed. The general diversity of insects and those species of higher conservation value (i.e. focal species) were sampled as an indicator of the status or health of the forest in Emalu. 5.3 Methodology Site selection and habitat considerations A number of key habitat types (shown on Map 3 and Map 4) were surveyed to maximise the chance of encountering individuals of focal species as well as to adequately sample the diversity of insects; • Lowland forest areas: targeted specifically to find Fiji’s rare endemic butterflies Papilio schmeltzi and Hypolimnas inopinata. • Upland forest areas: leaf litter sampling, pitfall traps and light traps on slopes mainly targeted the general diversity of insects within this specific habitat. Active searches for the endemic phasmids (stick insects) were also conducted. • Ridges: leaf litter sampling and light traps on ridges targeting the general diversity of insects found within this specific habitat. A high diversity of 59 insects (and in particular the focal order Coleoptera) is indicative of intact forest systems. • Riparian surveys in all vegetation types: These sruveys specifically targeted butterflies (namely Fiji’s rare endemic butterfly, H. inopinata) and damselflies (namely those of the endemic genus Nesobasis). These often fly out to open areas on a fine day in search for sunlight and food, and usually aggregate along the streams in forested areas. Their presence, abundance and richness are excellent indicators of forest and stream systems in good health. Survey methods and sites Nocturnal surveys Nocturnal surveys were conducted using ultra violet (UV) light traps. These were set up and left to run for 12hour periods from 6pm-6am. Insect specimens were sorted to Order and then to Family level. Specimens are currently being curated, catalogued and stored at the South Pacific Regional Herbarium, USP. Leaf Litter surveys Leaf litter surveys were conducted targeting different habitat types (i.e. river flats, slopes and ridges) in the lowland and upland vegetation types. 1m2 quadrats were laid at 5m intervals along a 50m transect. Leaf litter from each quadrat was sieved through 12mm mesh sieves and transferred into Winkler bags (Fig. 24 and Fig. 25). The Winkler bags were hung out for at least 48 hours to allow drying of the leaf litter. Insect specimens were stored in ethanol for further sorting and identification. Pitfall Traps Pitfall traps were set in varous habitat types (i.e. river flats, slopes and ridges) in the lowland and upland forest areas. Pitfall traps were placed at 5m intervals along a 50m transect within the vegetation plots used by the botany team. Specimens were collected and transferred into ethanol after 48 hours. Active sampling- Lepidoptera (butterflies) and Odonates (damselflies) Butterflies and damselflies were also actively sampled in open grassland and riparian areas along creeks and streams using handheld nets. Voucher specimens were taken for identification. 1km Transect Count Method 1 km transect counts were conducted for the indicator taxa Hypolimnas inopinata (for abundance) and Odonata (damselfly) diversity along streams within the Mavuvu and Waikarakarawa catchments. 60 Opportunistic Encounters In addition to the survey methods described above, collections were made during the course of the survey period in response to opportunistic encounters of interesting taxa. Identification and curation Identification of specimens was carried out with the aid of available taxonomic references for each of the main groups; butterflies and moths (Waterhouse, 1920, Robinson, 1975, Prasad and Waqa-Sakiti, 2007), dragonflies and damselflies (Donnelly, 1990, Van Gossum et al., 2006), ants (Folgarait, 1998), beetles (Lawrence and Britton, 1994) and spiders (McGavin, 2000). The specimens are currently being curated and catalogued at the South Pacific Regional Herbarium. 5.4 Results and discussion Insect Diversity The results of the insect survey of each catchment are provided in Appendix 10, Appendix 11 and Appendix 12. A total of 26 Coleopteran (beetle) families were sampled from within the entire study area. The most abundant taxa sampled included the beetle families Curculionidae (weevils) and Scolytidae (bark beetles) and from the Order Hymenoptera, Family Formicidae (ants). Rare beetle families: Cerambycidae (long-horn beetles), Eucnemidae, Cantharidae, Lathrididae and Passalidae were also encountered in the surveys. The great diversity of the target taxa Coleoptera and the Hymenopteran family Formicidae are a good indication that ecosystem services such as soil processing, decomposition, herbivory, pollination and seed dispersal within the study area of the lowland, upland and cloud forests in Emalu are well intact. Another interesting find was in the order Odonata (i.e. damselflies). The endemic genus Nesobasis were abundantly found along tributaries, creeks, stream and rivers especially for the species Nesobasis angolicolis (Fig. 26), N. erythrops and N. heteroneura. Their diversity along streams is an excellent indicator of good water quality and intact status of neighbouring ecosystems. Moths sampled from light traps (nocturnal surveys) were also significant especially for a few species which are native and known to be restricted to primary forested areas i.e. Cleora diversa, Agathia pisina, Pyrrhorachis pyrrhogona, Thallasodes figurate and Mecodina variata. Focal Species Hypolimnas inopinata (Order Lepidoptera) Hypolimnas inopinata (Fig. 27 and Fig. 28) is a rare butterfly, endemic to the Fiji Islands. It is a montane species and lives in rainforests. It is often found in or near 61 pristine mountain areas, usually in semi-open areas along streams leading up to the mountains. Its presence and abundance has also proven to be a very good indicator of the pristine nature of the rainforest system. H. inopinata was sampled along the Nasa Creek, adjacent tributaries including the Wairovurovu stream (Tovatova catchment), Waikutukutu stream (Waikarakarawa catchment) and the Wainasiga stream and Wainasoba Creek (Mavuvu catchment) suggesting that these catchment areas in Emalu are intact and pristine (i.e. sites P4, P7, P11 & P16, P26, P30, P31, P32, P33, P39 & P40 on Map 8). Extent populations have only been located on Viti Levu in the forests of Navai and Nasoqo (Ra Province) and Waisoi, Wainavadu and Saliadrau (Namosi Province) and Naikorokoro (Rewa Province). This find is a first record for the Navosa Province and the study area has a healthy population of this species. Nysirus (syn. Cotylosoma) spinulosus and Cotylosoma dipneusticum (Order Phasmida) Nysirus spinulosus (Fig. 29), a rare endemic stick insect was first described in 1877, and previously recorded from Viti Levu, Fiji and only recently (i.e. 2008 & 2009) from Nakauvadra and Nakorotubu ranges in the Ra Province. Cotylosoma dipneusticum is another rare endemic stick insect and has been previously recorded from Taveuni and Viti Levu (Nakorotubu range and Savura Forest Reserve). Both were sampled from intact upland rainforests near Tovatova Creek, a tributary of the Nasa Creek and upland forest within the Waikarakarawa catchment. From previous observations, these two species of stick insects have been known to be closely associated with such pristine forest systems (P13, 14, 15, 20, 21 on Map 8). Raiateana knowlesi (Order Hemiptera: Family Cicadidae) Raiateana knowlesi (Fig. 23) is an endemic and rare cicada with a unique life cycle in which adults emerge every eight years (periodic emergence). The last appearance of the adults was in 2009 from within this vicinity. It is locally known as nanai and has been previously recorded from parts of the Serua and Navosa provinces. It is of great cultural significance to the mataqali Emalu, being one of their ‘totem’ species. The chiefly daughters of the mataqali are usually accorded the title Rokonai. Also the year of emergence of the nanai signifies yabaki ni sautu, i.e. a year of plenty from their agricultural produce. The tobu ni nanai, a sacred natural pool which provides the final resting place for these endemic cicada is also located within the Nasa catchment. The nanai also bears a national significance; it is the insect that is featured on Fiji’s highest legal tender note ($100), an acknowledgment of the magnitude of its importance. 5.5 Discussion and recommendations The Emalu forest is of great significance as it harbors a good population for one of Fiji’s rare and endemic butterflies, H. inopinata, owing to the pristine nature of its habitat i.e. one of Fiji’s last remaining primary forests. More importantly, it is home to one of Fiji’s rare and localised endemic cicada, Raiateana knowlesi (nanai) that has 62 both cultural significance (as the totem of the mataqali Emalu) and national significance (as featured on Fiji’s $100 note). This area is also significant for the Odonates (i.e. damselflies) which recorded a good diversity along the Nasa Creek, Wainisiga stream, Wainikutukutu stream and adjacent tributaries. This included the genus Nesobasis which is endemic to Fiji and has radiated successfully in Fiji having a total of 36 species, a few of which are currently new to science. With extensive sampling targeting this group within this pristine inland forest of the Navosa Province, it is suspected that there may still be species new to science within the Emalu area. This however warrants further research. With an overall high diversity of insects, it further suggests that ecosystem services provided by the abundant and diverse Coleoptera (beetles, 26 families) and Formicidae (ants) are well represented with forests systems being quite intact. These groups of insects have proven to be excellent indicators of the forest and water systems and their abundance and richness further suggests that much of the Emalu forest area is pristine. Recommendations • Sampling efforts within the study sites were compromised due to adverse (rainy) weather conditions in some areas. A long-term monitoring and seasonality study of the insects in Emalu is recommended. • The results of this suvey in terms of this area’s insect diversity and the presence of focal and iconic species strongly support that Emalu be identified as a Key Biodiversity Area for Fiji. 63 CHAPTER 6: FRESHWATER FISHES Lekima Copeland 6.1 Summary A total of ten species of fish from eight genera and six families were recorded in the Emalu site through sampling and interviews. Three species were documented from the Gobiidae family (Awaous guamensis, Sicyopus zosterophorum, Sicyopterus lagocephalus). In addition two species of eels from the family Anguillidae were also collected (Anguilla marmorata and Anguilla megastoma) as well as the freshwater snake eel from the family Opicthidae (Lamnostoma kampeni). Mavuvu mid reach had an exceptionally high abundance and biomass of jungle perch (Kuhlia rupestris) compared to other streams in Fiji. Also documented were the introduced exotic species tilapia (Oreochromis niloticus) family Cichilidae. Notable absences around the headwaters of Nasa Creek were the gobies Stiphodon spp. and the monkey river prawn Macrobrachium lar. No endemic species were observed or caught during this survey. Water quality was well within habitable range in terms of dissolved oxygen, conductivity, temperature and turbidity across all sampling stations. The introduced tilapia (Oreochromis spp.) are present in mid and lower reach sites and may account for the low abundance and diversity of native stream fishes. Around areas of human habitation there is evidence of the removal of riparian buffer zones as well as unrestricted livestock access to waterways which, coupled with uncontrolled slash and burn activity has exacerbated environmental degradation in these areas. The use of Derris roots (a traditional fish poison) is also a common problem seen throughout the survey area. Reforestation of buffer zones and the setting of a riparian buffer width for agricultural or development purposes are reccommended. 6.2 Introduction The freshwater fishes of the Fiji Islands have only been extensively studied in the last decade, by various researchers that have discovered species new to science and elucidated some of the various factors affecting these insular fish assemblages (Jenkins and Boseto, 2005, Boseto, 2006, Boseto and Jenkins, 2006, Jenkins, 2009, Jenkins and Mailautoka, 2010, Larson, 2010, Jenkins and Jupiter, 2011). On a global scale the freshwater fishes of Fiji have been recently recognised in terms of endemic species per unit land area (Abell et al., 2008). The oceanic islands of the Pacific are distinct from continental land masses in that they have developed unique freshwater fish assemblages that have important ecological linkages between marine and freshwater environments (McDowall, 2008a). In Fiji, 166 species (47 families) have been recorded from tidal reaches upwards, with 156 of these (43 families) indigenous to Fiji (Jenkins, 2009). Ten species (4 families) have established invasive or nonindigenous populations in the wild although at least fifteen non-indigenous species 64 have been introduced (Jenkins, 2009). At least eleven species (in 3 families), which constitute 7% of freshwater fish in Fiji, are considered endemic. This survey constitutes the first documented work carried out on freshwater fishes for Nasa River, but work has been undertaken previously in neighbouring water systems. King (2004) documented several species of fish and invertebrates in the neighboring Solikana stream. The species documented by her were Kuhlia marginata, K. rupestris (flagtails), Anguilla sp. (eels), gobys (Gobiidae family), Oreochromis niloticus, O. mossambicus (tilapia) and an eel. The eel that King recorded as Archirophichthys kamperi is most likely Lamnostoma kampeni. Invertebrate species such as several crustacean species of Macrobrachium spp. (Paleomonidae) were also noted by King (2004). In the lower reaches of the Sigatoka River, Fowler (1953) based on two badly damaged specimens described a presumed endemic genus of freshwater fish collected from hoof print puddles Lairdina hopletupus, (Eleotridae, Fig. 31). However the voucher specimens have since been redescribed and this species is now known as Giuris margaritacea. The Mavuvu River drains into the Navua River, where previous research by Jenkins & Boseto (2003) within the Upper Navua River Conservation Area documented thirteen species, including two Fiji endemic species i.e. Redigobius leveri and Schismatogobius vitiensis, and an introduced species Oreochromis mossambicus. 6.3 Methodology Due to the remoteness of the study area, several methods of gathering data were used. The field methods described herein were designed to enable the most comprehensive documentation of fishes present in Emalu. A portable Global Positioning System (Garmin eTrex 20) was used to take the position and altitude of the sampling sites. A map of the study area and several pictures of the locations sampled are provided (Map 9, Fig. 35 - Fig. 38). Physiochemical parameters Before fishing commenced water quality parameters were recorded to minimise disturbances to in-situ water quality characteristics. Temperature, pH, conductivity, salinity and dissolved oxygen were measured using a commercial hand held GPS Aquameter and AP-1000 Aquaprobe. In-stream fish sampling The beach seine (3m x 2m, 1mm mesh) was set several meters downstream and held by two people. Upstream, one person kicked and dislodge rubbled to enable the collection of bottom dwelling fish. This was done for about an hour, over approximately a 100m stretch of stream. To get a thorough documentation of species presence or absence, snorkeling was also undertaken in streams sampled. This was 65 also aided by visual observations on the side of the stream bank, as some species of the gobies are easily distinguishable due to their bright colors. Opportunistic collections and interviews with villagers were also documented. Preservation Voucher specimens were collected, fixed in a 10% formalin solution and transferred to 70% ethanol solution after five days of fixation. Voucher specimens were deposited at the University of the South Pacific marine collection. 6.4 Results and discussion Species richness and abundance Overall a total of six species of fish were directly observed or collected during this survey (Appendix 13). There was high species richness near villages compared to the headwaters of Nasa stream. This is characteristic of insular systems of Oceania where this attenuation in species richness with increase in altitude has been documented by Jenkins & Jupiter (2011). Three of the species collected were from the Gobiidae family i.e. Sicyopus zosterophorum (Fig. 32), S. lagocephalus and Awaous guamensis. In addition, two species of eels (family Anguillidae) were also collected, Anguilla marmorata and Anguilla megastoma. The jungle perch, Kuhlia rupestris, was also collected. A further four species were documented from village interviews as being present in the area i.e. Kulia marginata, Oreochromis niloticus, Eleotris fusca, and Lamnostoma kampeni. Upper reaches of the Nasa stream The headwater sections surveyed ranged in altitude from 500-570m. The freshwater fish found at this altitude are characteristic of upper catchments on oceanic islands of the Indo-West Pacific. The native species Sicyopus zosterophorum and S. lagocephalus found here are known as amphidromous fish in which the adults spawn in freshwater, fertilised eggs hatch within a period of 48 hours. Larvae are transported to the sea for several weeks of growth and then return upstream (as post-larvae or juveniles) to complete their lifecycle (McDowall, 2008b). These two species are hardy fish and are ubiquitous in geographic range. Both are capable of surmounting large barriers such as waterfalls and can survive in degraded catchments. There were also two native species of catadromous eels found at this altitude (Anguilla marmorata and Anguilla megatsoma). Catadromous species are those in which adults migrate to sea to breed. The juvenile eels then return upstream for more feeding and growth before returning to sea to complete their lifecycle (McDowall, 2008a). On the last day of the survey a total of 55 eels were caught by villagers (Fig. 30) in Wainirovurovu stream. It is highly likely that traditional fish poison (Derris roots) were used to catch these eels. 66 The use of traditional fish poison and other chemicals occurs in inland fishing communities. A study undertaken in Nawairabe Village (about 10 km west of Emalu) found that 2.2% of households blamed the use of Derris roots and other fishsuffocants for the depletion of fish but “excessive burning (46.7%); and the associated soil erosion in the wet season (17.8%) were by far the most important environmental problems in Nawairabe” (King, 2004). Mid to lower reaches of the Emalu area within and outside the boundary There were no mid and lower reach sites sampled during this survey though some visual observations around Navitilevu settlement found the native goby S. lagocephalus. Informal interviews with villagers recorded native species such Kuhlia marginata, Awaous guamensis, Eleotris fusca, Lamnostoma kampeni and the introduced tilapia Oreochromis niloticus. The presence of these species can only be confirmed using proper survey techniques such as electrofishing around this site. A total of eleven jungle perch Kuhlia rupestris (Fig. 33) were caught around mid Mavuvu. The size of these fishes ranged from 11 to 39cm. This mid-reach site just below the waterfall is traditionally known as sukasuka ni ika droka, a natural barrier to fish migration (Fig. 34). Only those species adapted to climbing are able to surmount such barriers. This area within Emalu is an important area in terms of fish biomass and strict measures must be taken to protect it from over-fishing and unsustainable practices such as the use of Derris roots. Water Quality Results of the on-site measurements are tabulated in Appendix 14. Temperature at the sites was between 19.7°C and 20.4°C. Dissolved oxygen levels were fairly high, above 8mg/L, making it readily available for fish at the six stations sampled. Conductivity at all sites ranged from 0.047-0.084µS which is well within the suitable habitat range for stream fish. Turbidity was very low at all sites (<10 NTU), and the bottom was visible at all the stations. 6.5 Conclusion and recommendations The proper management and use of aquatic resources in Emalu entails a holistic approach due to life-history strategies employed by aquatic fauna that traverse different habitats throughout their life. It is true that management must begin at the catchment level; however, it goes hand in hand with the protection of marine and coastal habitats such as reefs, seagrass meadows, mangrove habitats, including lower and mid sections of rivers and streams. This survey did not find any endemic species, for several reasons such as degradation of buffer zones along mid-reach sites, the high number of introduced species such as tilapia which is known to prey on the larval species of native fauna and the possible use of Derris roots in the streams surveyed. 67 The following are suggestions for the proper management and conservation of aquatic fauna in Emalu: 1. The first priority is protection of the catchment areas of the Sigatoka River. The headwaters should be set up as a protected area with a complete ban on slash-and-burn techniques around the catchments. 2. Secondly, the other major issue identified is the importance of restoring buffer zones around mid-reach sites. This will also require the proper education of farmers (landowners) on setting up farms near rivers, and the importance of a buffer width and restricting livestock access across streams. 3. A complete ban should be in place on the use of poison for fish capture. Derris roots, weedicides and pesticides should be banned in Emalu. 4. The need for proper waste management care. In the three villages visited, the use of flush toilets is strongly recommended. Villagers have running tap water and flush toilets should be implemented for all households. 5. Pit toilets in the village need to be built away from the stream. The majority of the toilets seen across the villages are built on sandy areas within the vicinity of the stream and are directly leaching into the stream. 68 CHAPTER 7: FRESHWATER MACROINVERTEBRATES Bindiya Rashni 7.1 Summary A total of 76 freshwater macroinvertebrate taxa were identified from the 16,370 specimens collected. Of these 76 taxa, a total of 57 (75%) were endemic to Fiji, most of them insects. A total of fourteen macroinvertebrate taxa were selected as potential bioindicators. These include four species of mayfly larvae (Ephemeroptera: two Pseudocloeon spp. and two Cloeon spp.); two species of damselfly larvae (Odonata: Nesobasis “orangish”, Nesobasis “dark green”); four species of caddisfly larvae (Trichoptera: Apsilochorema “light green”, Hydrobiosis “pinkish”, Hydrobiosis “green” and Chimarra sp.); one cranefly larvae (Tipulidae: Tipula sp.); one snail (Fluviopupa spp.); one nematode worm (unknown species) and one moth larvae (Lepidoptera: unknown species). The high number of endemic taxa recorded, together with a large number of species with large populations, is indicative of the intactness of both the stream system and the surrounding forest. 7.2 Introduction The freshwater macroinvertebrate fauna of Fiji is currently represented by 45 families, namely; 25 families of insects, eight families of molluscs, four families of crustaceans, three families of segmented worms, two families of nematodes, two families of sponges, and one family of flatworms (Haynes, 1988, Haynes, 1999, Haynes, 2001, Jeng et al., 2003, Haynes, 2009). Many of these are yet to be fully described to genus and species level and many aquatic insect larvae need to be matched with their described flying adults. Prior to this study, no surveys had been carried out to identify the composition of macroinvertebrate communities within the waterways of this study site or their tributaries. There is, however, some documentation of previous macroinvertebrate surveys in other waterways of Viti Levu. Three tributaries of the upper Sigatoka River (which is located about 23km from Emalu) were surveyed for possible effects of the Sigatoka-Ba hydropower dam. Damselfly and mayfly species were noted to be of very sensitive nature to this development (Haynes, 2004). In Namosi province macroinvertebrate composition from an unlogged catchment drained by Wainikovu Creek (23km from Emalu) was compared to that of Nabukavesi Creek in a logged catchment. After five years, the abundance of 69 invertebrates in both streams was the same except Nabukavesi Creek had lost five species which had been present in sparse populations prior to logging and Wainikovu Creek had more species of an endemic genus of damselfly, Nesobasis spp (Haynes, 1999). A survey of Lake Monasavu revealed the presence of damselfly nymphs (Nesobasis spp.) prior to dam construction. But eight years after the dam construction, the damselfly nymph species were wiped out (Haynes, 1994). These studies were conducted in areas outside the Emalu catchment boundary. Therefore the present study represents the first detailed and comprehensive study of freshwater macroinvertebrates and aquatic habitat within the three catchments of Emalu; Tovatova, Mavuvu and Waikarakarawa. The key objectives of the study were: To provide a comprehensive list of taxa. Describe community structure. Identify taxa that are unique, rare and endangered in Fiji. Identify taxa that can be used as indicators of environmental changes. This report also provides information relating to water physiochemistry and invertebrate habitats which will assist with interpretation of freshwater macroinvertebrate results and identify potential areas of monitoring interest related to the identified biological indicative taxa. 7.3 Methodology Survey Stations During the first phase of the Emalu survey (July 2012), three main stations were sampled within Tovatova catchment inclusive of the upstream Nasa Creek and its tributary, Wainirovurovu Creek. During the second phase of the survey (March 2013), six main stations were sampled within the Mavuvu and Waikarakarawa catchments, including the headwaters of Mavuvu River (Qalibovitu stream), the Mid Mavuvu River (Wainasoba Stream) and Waikarakarawa Creek. The descriptions of the sampling stations are summarised in Appendix 15 and their locations shown in Map 10. The area is densely forested with numerous tributaries connected to the main riparian systems; Nasa Creek and Mavuvu River. The mid to upper portion of the Nasa Creek is a medium to high gradient undisturbed stream with well vegetated, highly stable bank and good or moderate canopy cover providing suitable habitat conditions for thriving freshwater community. The mid Mavuvu River tributary (Wainasoba Creek) and upper Mavuvu River tributary (Qalibovitu Creek) are 70 undisturbed waterways with well-vegetated, stable to highly stable banks and good or moderate canopy cover, providing suitable habitat conditions for thriving freshwater communities. Water physiochemistry Water physiochemical parameters were measured at each sampling station using a calibrated multi-water quality meter (Aquaread AV 1000). Parameters measured included temperature, dissolved oxygen (DO), conductivity (milisiemens per centimeter (mS/cm), pH, Total Dissolved Solids (TDS), turbidity (Nephelometric Turbidity Units (NTU)) and salinity. Habitat characteristics and aquatic flora Habitat characteristics were assessed along 20m reaches per site to assist with interpretation of macroinvertebrate community data. The following habitat data was either measured or visually estimated and recorded on a standard habitat assessment form: Channel Description: Wetted width and water depth – channel width (m) was measured using a 30m measuring tape. Water depth (m) at wadeable sites was measured using a calibrated meter ruler or estimated at sites that were too deep (i.e. >1m). Water velocity – velocity was calculated by timing how many seconds a specimen bottle cap took to travel over a set distance of three metres. This procedure was repeated three times and averaged to give a mean velocity for each site. Habitat type – the relative proportion of each habitat type (e.g. run, riffle, pool and chute) present at each site was visually estimated. Streambed substrate – streambed substrate composition was assessed at each sampling station. Assessment procedure involved measuring approximately 100 sediment particles following the Wolman scale (Wolman, 1954). Size classes included bedrock, boulder (>256mm), large cobble (128-256mm), small cobble (64-128mm), large gravel (32-64mm), medium-large gravel (16-32mm), small-medium gravel (8-16mm), small gravel (2-8mm) and sand/silt (<2mm). Gravel size classes were combined into a single gravel class (2-64mm) for easier data presentation. Streambank stability – this involved visual characterisation of streambank stability at each site as (i.e. stable, partially stable or unstable). Organic matter present – observation of woody debris, leaf litter and detritus at sampling stations. This provides an indication of potential food availability for certain macroinvertebrate functional feeding groups or additional stable habitat. 71 Riparian character and channel shade – at each sampling station, a general assessment of percentage channel shade and the riparian vegetation characteristics was carried out. Periphytons (algae) – visual estimation of present streambed periphyton cover (%) and type (i.e. film, mat, filamentous) and colour (i.e. green, light brown, dark brown, reddish) at wadeable sampling sites. Macrophytes (aquatic plants) – an assessment of macrophyte streambed cover and species present at sampling stations Macroinvertebrate sampling Macroinvertebrate samples were collected using both quantitative and qualitative survey methods to allow an assessment of macroinvertebrate density at selected stations and to compile a list of suitable taxa as potential bioindicators for future monitoring. The quantitative and qualitative sampling methods were adapted from Stark et al. (2001) and modified to suit the time constraints and objectives of this particular survey. They are described as follows: Quantitative assessment – This is a quantitative method that provides a measure of macroinvertebrate density is adapted and modified from Protocol C3 (Stark et al. 2001). Two replicate Surber samples (area 0.1m², 0.5 mm mesh) were collected from riffle habitats at stony streambed sites. A riffle is a shallow area (water depth ≤0.5m) where water flows swiftly over stones, creating surface turbulence. Surber samples were collected from the Nasa Creek and its tributary, Wainirovurovu stream in Tovatova catchment and Waikarakarawa Creek in Waikarakarawa catchment. Samples were collected by placing the Surber sampler over a defined area of streambed in riffle habitat and disturbing the habitat by washing the particles with the water flowing through the net to collect dislodged macroinvertebrates. A sample was also quantitatively collected using a kick-net sampler in Wainasoba Creek (WSLQT), collecting from same surface area as that of Surber sampler. Qualitative assessment – a single sample was collected from each sampling station either via kick-net or visually inspecting slow flowing edge habitats for taxa that prefer these habitats (e.g. snails and damselflies). Typical habitats sampled included runs, riffles, chutes, pool edges, trifles, woody debris, leaf litter, stream edges, and tree roots along banks, streambank vegetation and sand/silt substrates. Macroinvertebrate samples collected from the Surber sampler, kick-net or hand collection were placed into 250ml specimen jars with 70% ethanol for sorting and identification by the author. New taxa were verified by Dr. Haynes. The guides referenced in the identification process included; Haynes (2009), Haynes (in prep.), Haase et al. (2006), Williams (1980) Winterbourn et al. (2006), and Nandlal (unpub). Identified macroinvertebrates were placed for preservation in small vials containing 70% ethanol for long term storage. 72 Data analysis Community composition and structure: the combined Surber and opportunistic data set was used to calculate the relative abundance of the main taxonomic groups. Macroinvertebrate density: an assessment was made of macroinvertebrate density in riffle habitats at selected stony streambed sites based on quantitative Surber sample data by multiplying the mean Surber sample abundance data (per 0.1m2) by a factor of ten to give abundance/m2. Status and distribution of taxa: taxa were classified as either endemic to Fiji, native to other regions (e.g. Pacific, South Pacific, Indo-Pacific, Fiji-Australia and South East Asia), introduced tropical species or other (i.e. marine, worldwide). Focal species/ taxa of interest: macroinvertebrate taxa of potential interest for being key indicators of environmental change in the catchment were selected. 7.4 Results Water physiochemistry The water physicochemistry parametres measured at the different stations are summarised in Appendix 16. Waterways sampled ranged from almost neutral to slightly acidic. The freshwater macroinvertebrate communities described in this study are unlikely to be significantly affected by pH values within this range. Conductivity is a measure of the total ions in water and ranged between 0.084 mS/cm in the mid Mavuvu (MLVQT) and 0.047 mS/cm in the upper Nasa (NU1QT). Turbidity (NTU) is a measurement of particles in the water column and provides an indication of water clarity. Turbidity values ranged between 0 NTU in the Wainirovurovu Creek sites (WRD2QT & WRU3QT) and Mavuvu catchment streams (WKQT, WSLQT & QB1QL) to 5.8 NTU in the Nasa Creek (NU1QT). Turbidity in Nasa Creek was higher due to heavy rainfall the night prior to surveying. Though turbidity above 5 NTU signifies poor water quality; this was a temporary impact and water clarity had returned to normal by late afternoon with NTU of less than 5. In Wainirovurovu Creek (WRD2QT & WRU3QT), turbidity values were 0 NTU, which signifies excellent water quality for macroinvertebrate survival as well as the absence of sediment-raising activities in the catchment. Dissolved oxygen concentrations ranged between 8.27g/m3 in Waikarakarawa Stream (WKQT) and 8.99 g/m3 in Nasa Stream (NU1QT) All dissolved oxygen concentrations were above the level considered sufficient for macroinvertebrate survival (i.e. >5 /m3). This was due to unaltered waterway hydrology allowing suitable water flow coupled with sufficient canopy cover to reduce excess temperature and highly stable bank reducing any sedimentation impacts. Salinity measurements at the survey stations 73 demonstrated levels that are expected in the headwaters of any tropical inland stream. Habitat Characteristics The aquatic habitat and riparian characteristics of the stations surveyed are summarised and presented in Appendix 17. The streambed of waterways surveyed was dominated by cobble/gravel and sand and provided a diverse stable habitat for the macroinvertebrate community (Graph 1). 100% Silt/sand Streambed compostion (%) 90% 80% Small gravel 70% Small-medium gravel 60% 50% Medium-large gravel 40% Large gravel 30% Small cobble 20% Large cobble 10% 0% Boulder Bedrock Stations Graph 1. Streambed composition at sampling stations. Periphyton Thin light/dark brown films (<0.5mm) (i.e., 40-80% cover) was the most common form of periphyton recorded at sampling stations with stony streambeds. This periphyton type is a source of food directly or indirectly for macroinvertebrates and fishes in streams. Macroinvertebrate density A summary of the freshwater macroinvertebrates collected and their abundance is presented in Appendix 18 (Surber sampling) and Appendix 19 (opportunistic collections). The abundance is given as numbers of individuals, and is also grouped into abundance categories as follows: very abundant (>100), abundant (20-99), common (5-19), few (2-4) and very few (1). The overall (all taxa) abundance ranged from 2049 individuals/m2 at Waikarakarawa Creek downstream (WKQT) to 3686 individuals/m2 in Nasa Creek upstream (NU1QT). Insect larvae/nymphs were the most dominant taxa at all three sites (Graph 2). This was strongly represented by caddisfly, mayfly and dipteran larvae. This result is typical of the headwaters of tropical inland streams with intact or pristine 74 catchments. Insect larvae are well adapted to fast flowing waters of stream/river headwaters, compared to crustaceans and molluscs which are found in higher numbers in lower reaches of streams/rivers with swifter flows. The small Fluviopupa (<4 mm) snails were also recorded as abundant at two sites and very abundant at one site. These particular gastropods are usually catchment endemic and found in higher densities in headwaters with narrow channels, swift flows and very clean water. They have been found to be only present in streams undisturbed from cattle/horse grazing. Hence they were abundant in the intact waterways surveyed. The moth larvae (Nymphula spp.) also ranged from abundant to very abundant at two stations. They are known to be found in higher densities in streams with adequate algal film covering stream substrata and open-partial canopy shading and good water quality; hence there abundance in these streams. 100% Mollusca Community Composition (%) 90% Annelida 80% 70% Arachnida 60% Coleoptera 50% Hemiptera 40% Odonata 30% Diptera 20% Lepidoptera 10% 0% Trichoptera NU1QT WRD2QT WRU3QT WKQT MVLQT Ephemeroptera Sampling stations Graph 2. Community composition by major taxonomic group. The macroinvertebrate communities documented were typical of pristine/intact inland tropical stream headwaters. The waterways sampled provided suitable habitats for diverse taxa composition. The sites surveyed had coarse stony streambed substrates and a high proportion of turbulent riffle/chute habitats, which resulted in caddisflies (Trichoptera) being the most dominant group at the majority of stations, followed by mayflies (Ephemeroptera) and flies (Diptera). These groups combined to give 95% (NU1QT), 98% (WRD2QT), 85% (WRU3QT) and 98% (WKQT) of the total species recorded (Graph 2). An exception to this pattern is at site MVLQT whereby the Mollusca group was more abundant than the Diptera, and togther with the Trichoptera and Ephemeroptera comprised 80% of species composition. 75 100% Abacaria fijiana Pseudocloeon sp. 90% Cloeon sp. Abacaria ruficeps 80% Anisocentropus fijianus Goera fijiana Community Composition (%) 70% Hydrobiosis Odontoceridae 60% Chimarra sp. Rhyacophilidae Hydroptilidae 50% Nymphula sp. Chironominae spp. 40% Tanypodinae sp. Dixidae 30% Simulium spp. Tipulidae spp. 20% Nesobasis sp. A Hydraenidae sp. 10% Empididae Nemobiinae sp. 0% NU1QT WRD2QT WRU3QT WKQT MVLQT Nematode spp. Fluviopupa spp. Sampling stations Others Graph 3. Community composition by taxa. The most abundant caddisfly taxon recorded was the net-spinning filter-feeder Abacaria fijiana. This species were most abundant in riffle habitats at Mid Mavuvu tributary, Wainasoba Creek (WSLQT) and Wainirovurovu downstream (WRD3QT) where they represented between 40 and 43% of total abundance respectively. Other caddisfly larvae such as A. ruficeps, Odontoceridae, Hydroptilidae and Chimarra sp. were also common or abundant but represented less than 9% of total abundance. Chimarra sp. was recorded in highest proportions in the Nasa Creek (NU1QT) and Wainasoba Creek, in the downstream Mavuvu (WSLQT). Mayflies were also a dominant taxonomic group recorded at survey sites and represented 69% of the community in the Waikarakawa Creek and 30% in the Nasa Creek (NU1QT). The most abundant mayfly taxon was Pseudocloeon sp. This is because Pseudocloeon sp. has a dorso-ventrally flattened body that allows it to graze on thin algal films covering the surfaces of large boulder/cobble substrates in turbulent riffle/chute habitats. In contrast, Cloeon spp. mayflies which are mostly associated with gentle flowing habitats and are more common along stream margins and runs were recorded in much lower proportions across the sites. Therefore many Cloeon spp. were part of the opportunistic collection. 76 Conservation status and distribution of taxa Status & distribution A total of 57 of the macroinvertebrate taxa recorded as part of the survey were endemic to Fiji and represented 75% of the total number of taxa recorded (Graph 4). Endemic/Native Native, Pacific 75% 3% 9% Native, Indo-Pacific Introduced,tropics 3% Unknown 11% 0 20 40 60 80 Percentage of total taxa Graph 4. Status and distribution of taxa across all sites. Apart from a few unique specimens (~15), many of the endemic taxa recorded are common throughout the headwaters of Fiji Island streams. The remaining 15% of taxa were either native to Fiji, the Pacific or the Indo-Pacific region, or introduced tropical species or unknown species. Graph 5 shows the total number of taxa recorded at each sampling station and their status/distribution shown as a proportion of total taxa richness within each community. The number of endemic/native taxa recorded at sampling stations as part of quantitative survey ranged between 14 endemic/native taxa at Waikarakarawa stream (WKQT) to 27 at Wainirovurovu upstream (WRU3QT). This amounted to 88% and 90% of the total taxa per sites respectively; highlighting that endemic species are the dominant taxa at all sites. The majority of endemic/native taxa recorded were insects; inclusive of both qualitative and quantitative collection (53 taxa in total). Other endemic taxa recorded were the small (<4mm) snail Fluviopupa spp. and nereid and nematode worms. A single juvenile specimen of the introduced tropical snail Melanoides tuberculata was also found in riffle habitat at Nasa stream (NU1QT) of Tovatova catchment, although no adults were observed around the edges of streams during the qualitative survey. This could possibly be an inadvertent introduction into the stream via footwear worn by villagers/surveyors. This tropical snail was however present in adult and juvenile sizes along the sides of stream channel at Waikarakarawa stream and Wainasoba Creek. The common introduced mosquitoe larvae (Culicidae) was found at Wainirovurovu stream. These species are usually limited to stagnant waters (pools) in streams but due to the previous night’s rainfall they might have been washed into the riffles. 77 35 Qualitative sampling Quantitative sampling Number of Taxa 30 Endemic/Native 25 Native, Pacific 20 25 15 25 27 10 22 17 27 Native, Indo-Pacific 22 10 Introduced,tropics 14 Unknown 13 5 6 2 1 0 Sampling stations Graph 5. Status and distribution of taxa across individual sites. A lower number of endemic taxa were observed as part of the quantitative survey at Waikarakarawa Creek (WKQT) (14 taxa) and Wainasoba Creek (WSLQT) (17 taxa). The qualitative survey at both stations (WKQL & WSLQL) showed a high increase in endemic/native taxa. This is probably due to species becoming habitat specific with changing physical parameters such as an increase in flow with increasing elevation and steepness coupled with a decrease in channel width. Damselflies, shrimps and some caddisfly species were more abundant on the sides of the streams which supported slow flows, compared to riffles with swift flows. The sides of the streams also had mass fibrous roots extended into the channel that provided habitats for damselflies, shrimps, whirligig beetles and some caddisfly species. Focal species / taxa of interest Certain macroinvertebrate taxa that were recorded during the surveys and that may be of potential ecological interest are shown in Fig. 45 - Fig. 61. These highly sensitive species are typical of pristine streams draining intact watersheds. Furthermore, some of these taxa, such as Fluviopupa spp., Nesobasis “orangish”, the unknown moth larvae and the nematode worm, have a very high chance of being catchment endemic or localised endemic. 7.5 Discussion Dense forest cover, intact riparian zone and highly stable banks along these rivers and their tributaries provide suitable conditions for a thriving freshwater macroinvertebrate community. Dense forests ensure enough volume and clear water entering the creeks and tributaries; maintaining a natural state of waterway hydrology to provide different habitats such as runs, riffles, pools and chutes coupled with appropriate streambed substrates and good water quality. Intact riparian vegetation acted as an excellent buffer zone for any sediment intrusion from land, thereby maintaining water quality. Adequate canopy cover along waterway 78 edges provide for shade to control water temperature, leaf litter for nutrient cycle, sufficient light for algal cover (food for macroinvertebrates) on stream substrata, while native tree roots, shrubs, ferns and big boulders ensured bank stability. At Waikarakarawa Creek a few cases of natural landslides were observed, while Qalibovitu upstream had more than six cases of landslides. These landslides caused large trees to fall in the waterways which altered the waterway hydrology but also provided additional habitats via branches, leaf litter and twigs. The landslides also caused abrasion of stream banks resulting in the addition of sediment to the streambed. However, this impact is a temporary one. The freshwater macroinvertebrate community of Emalu (in total 76 taxa) showed that the endemic taxa were the most dominant with insects making up the majority of the taxa. This is typical of pristine inland tropical riverine system headwaters. In comparison with other studies in pristine headwater catchments (by the author), 27 taxa were identified from Wainavadu Creek and the headwaters of the Waidina River in Namosi and Naitasiri Provinces, and 32 taxa were identified from the Wainibuka River headwaters in the Nakauvadra Range. Waterways in the Emalu area therefore supports much higher taxa richness (almost threefold more) than other creek/river headwaters that have been surveyed in Viti Levu. A total of fourteen macroinvertebrate taxa collected as part of the survey may be of potential ecological interest. These include four species of mayfly nymphs (Ephemeroptera: two Pseudocloeon spp. and two Cloeon spp.), two species of damselfly nymphs (Odonata: Nesobasis “orangish” & Nesobasis “dark green”), four species of caddisfly larvae (Trichoptera: Apsilochorema “light green” , Hydrobiosis “pinkish” sp., Hydrobiosis sp. “green” and Chimarra sp.), one Cranefly larvae (Tipulidae: Tipula sp.), one snail (Fluviopupa spp. (< 4mm), one nematode worm (Unknown 1 sp.) and one moth larvae (Lepidoptera: Unknown 2 sp.). These highly sensitive species are very good bioindicators. They are also typical of pristine streams draining intact watersheds. In addition special taxa such as rissooidean snails (Fluviopupa spp.), Nesobasis “orangish”, the unknown moth larvae and the nematode worm are very likely to be catchment endemic or area endemic species. Fluviopupa snails, ten species of which are already known to be endemic to Fiji, have restricted distribution and are usually catchment endemic, inhabiting springs and small creeks or riffles (Haase et al., 2006). The slender red headed (Pseudocloeon sp. A) and the dark brown (Cloeon sp. A) mayfly nymphs also have a high chance of being catchment endemic species. The nematode worm has only been found in the Wainrovurovu tributary and not in Nasa Creek, possibly due to the narrower stream channel and the difference in water depth. Since the catchment is unimpacted by cattle grazing, these worms have naturally been part of the freshwater macroinvertebrate community or may have been introduced by birds etc. The orangish damselfly nymph and the moth larvae (Black with orangish spots and prolegs) have been encountered for the first time. These two taxa have not been observed in any streams surveyed prior to this survey. 79 However, these are only the larval stage and have not been matched with the adult stage as yet. Therefore it cannot be confirmed if they are new species or not. In addition, the amphipod and the caridean shrimps (Caridina sp. B-F) found in Qalibovitu Creek QB1QL and QB2QL have a very great chance of being new species as they do not resemble the crustaceans described so far from Fiji or Asia. 80 CHAPTER 8: INVASIVE SPECIES Isaac Rounds and Sarah Pene 8.1 Summary Trapping and opportunistic surveys were used to record the presence and abundance of invasive plants and animals in the Nasa, Mavuvu and Waikarakarawa catchments of the mataqali Emalu forests, Viti Levu. The checklist of 26 invasive plants and eleven invasive animals recorded as present in the area includes thirteen species which are listed in the 100 most invasive species in the world, namely; Plants: Spathodea campanulata, Mikania micrantha, Leucaena leucocephala, Lantana camara, Imperata cylindrica, Arundo donax and Clidemia hirta. Animals: Rattus rattus, Sus scrofa, Felis cattus, Pycnonotus cafer, Bufo marinus and Herpestes auropunctatus. In general the occurrence and abundance of invasive species in the Emalu boundary was associated with proximity to human habitation and to disturbed areas such as tracks, temporary campsites and cultivated areas. The invasive plant species were generally low in abundance, with the exception of Piper aduncum which was locally common, and Clidemia hirta and Mikania micrantha which were both widespread. The faunal component of the invasive species was comprised primarily of the most common (and most serious) global invasives such as rats, mongooses, mynah birds and cane toads, as well as feral animals of domesticated species, such as cats, dogs and pigs. Some invasive animal species such as the Polynesian rat (Rattus exulans), the Norwegian rat (Rattus norvegicus) and the house mouse (Mus musculus) were not observed directly in the field but they were reported by the guides to be present in and around the villages in the area. 8.2 Introduction Because of their isolation and relatively recent human occupation, Pacific islands are especially vulnerable to invasive species, to such an extent that invasive species are the primary cause of the extinction of island native species (Tye, 2009). Previous work from numerous authors has focussed on documenting their presence and to some extent their distribution and abundance within Fiji. Pernetta and Watling (1978) compiled a list of native and introduced vertebrates which included reptiles. Since then monitoring of some of the major invasives have revealed new additions for example, a second mongoose species (Morley et al., 2007). Some species (rats, mongooses and goats) have also been the target of concerted eradication efforts on some smaller islands to protect native biodiversity. 81 In terms of invasive plants, 52 species have been identified as being present in Fiji (Meyer, 2000). These have been classified under three groups according to their degree of invasiveness, namely: thirteen dominant invaders, seventeen medium invaders and 22 potential invaders. For some of these individual species, such as Mikania micrantha (Macanawai et al. 2010) and Spathodea campanulata (Auld and Nagatalevu-Seniloli, 2003), research has focussed on their ecology and control. Invasive species surveys have been a component of wider biodiversity assessments done in eastern Viti Levu (Morrison and Nawadra, 2009, Morrison et al., 2010, Morrison, 2003). This is however, the first survey of invasive species in the Emalu area. 8.3 Methodology Rodent Survey Traps were laid for rodents (rats and mice) on three consecutive nights during the July 2012 survey in the Nasa River catchment. Traps were baited with roasted coconuts and positioned in protected spots under hanging boulders, large tree bases and below fallen logs. The traps were laid in pairs along a transect, according to the established methodology of Cunningham and Moors (2006). The location of the three trapping transects is shown in Map 11. A total of 88 traps were set over the 3-day period, each for one night.The nose-to-tail length and the weight of captured animals were measured using vernier calipers and a 1kg spring balance. The species and sex of each captured animal was recorded, along with an estimate of its age (based on body size). Other Mammals Opportunistic surveys were conducted to identify the presence of other invasive mammal species such mongooses, feral cats, cows, dogs, horses, cows and goats. This included simple visual surveys for individuals, or for traces such as footprints, scat, and feeding evidence. Information was also obtained from other teams conducting surveys in other parts of the forest study site. One of the guides used dogs to hunt feral pigs, and these captures were also recorded. Invasive Plants A checklist of all invasive plants sighted was compiled during the survey with notes taken as to their relative abundance and habitat preferences. 8.4 Results A full checklist of all invasive and potentially invasive animals documented during the survey is provided in Appendix 20. 82 Rodent Trapping A summary of the trapping results is provided in Appendix 21. The trapping transects only successfully captured one rat; a juvenile male black rat (Rattus rattus) that weighed 135g. This rat was captured on the first trap night in Transect 1. Another individual of the same species (Rattus rattus) was caught opportunistically by one of the guides without a trap during the survey of the Waikarakarawa River catchment (Fig. 62). The other two species of rats, Rattus exulans, Rattus norvegicus and the mouse Mus musculus were not caught or observed during this trip, but it is highly likely that they are present in the area. Other Animals Pigs Six pigs were caught with the use of hunting dogs, including one pregnant female. Descriptions of the pigs caught are given in Appendix 22. Numerous wild pig wallows were observed in the forest including resting areas such as large tree hollows. Plantations near the village of Navitilevu showed some evidence of pig damage, including the uprooting of root crops such as cassava, taro and giant taro. Cats A juvenile male feral cat (Felis cattus) was caught at the Tovatova base camp. The cat managed to escape but was seen around the camp several times looking for food. Cat scat was also found along one of the tracks. No cats or evidence of cats were found around the Waikarakarawa Creek base camp. Horses Due to the remoteness of the area and villagers depend greatly on their horses (Equus caballus) for transportation to their plantations or into the forest. Horses were used for transportation of equipment and supplies to the campsites in the Mavuvu and Waikarakarawa Creek catchments during this study (Fig. 63). There was no evidence of the presence of feral horses in the Emalu area. Mongooses Although no mongooses were observed within Emalu forest, according to the guides they are present in and around their villages. Since no individuals were sighted it is not known if both species of mongoose (Herpestes auropunctatus, Herpestes fuscus) are present in the area, or just one. 83 Cane toads Cane toads (Bufo marinus) were present in the area, and several were caught and photographed (Fig. 64). They tended to be larger in size than those in urban areas. Invasive Plants A total of 26 invasive plant species were observed to be present within the area. Seven of these are currently listed in the top 100 of the World’s Worst Invasive Alien Species (Lowe et al., 2000). The complete list of all invasive and potentially invasive plant species found in the Emalu forest is in Appendix 23. The majority of species and the highest abundances were recorded in proximity to human habitation and to roads and agricultural land, with a much reduced number penetrating into the forest. Stream flats and embankments often had multiple invasive species in close proximity to each other (Fig. 65). African tulip (Spathodea campanulata) Spathodea campanulata, although one of the most problematic invasive plant species in Fiji, was recorded as only two individual trees within the forested area of the Nasa catchment. One other tree was found near the basecamp in the Waikarakarawa catchment. In and around villages and roadsides however this species was more common. False kava (Piper aduncum) Large monotypic stands of Piper aduncum were observed outside the Emalu boundary especially around Navitilevu Village, but within the Emalu site it is generally restricted to creek banks and disturbed open areas. Mikania micrantha and Clidemia hirta Although generally occurring at low densities within the forest, these two species are the most pervasive. Both were observed in higher altitudes, even in closed forest, above 700m and Clidemia hirta was also recorded in the cloud forest of Mt Vonolevu. Although both species are capable of growing in the low light conditions beneath canopy, they are found in much higher density in open and disturbed areas especially around tracks and stream banks. Ornamentals Several ornamentals plants introduced deliberately, probably as aboriginal introductions, were found in the area. These included species such as Brugmansia suaveolens, Musa x paradisiaca, Saccharum edule, Citrus grandis, Bambusa vulgaris, Artocarpus altilis, Citrus limon, Derris malaccensis and Bischofia javanica. Large terraces 84 were observed within the Nasa and Waikarakarawa river catchments indicating that at one time the area was intensively farmed. 8.5 Discussion In general the occurrence and abundance of invasive species in the Emalu forest was associated with proximity to human habitation and to disturbed areas such as tracks and past or present campsites, fallow land, old village sites, burnt out forest and cultivated areas. A total of 26 invasive plants species were recorded during the trip including some ornamental plant species that have the potential to become invasive. The majority of the invasive plant species were found along stream banks, abandoned plantations and old village sites. Continuous clearing of forest for plantation will certainly facilitate the incursion of invasive plants into the forest. Disturbance and both human and animal traffic along tracks will also contribute to the spread of invasive plants into the interior of the forest. Compared to invasive plants, invasive animals tend to have a more negative effect on the native fauna. Even though there is a high possibility that all rat species are present in the Nasa catchment of Emalu forest, the low trapping rate indicated either a low density of rodents or the need to improve trapping methods. It is possible that a grid system (Weihong et al., 1999) would have had a higher trapping success than the transect system. Trapping data suggest the rat abundances are not very significant but the presence of the black rat (Rattus rattus) is worrisome as they are a very agile and frequent climber and therefore can easily access nesting birds. The presence of feral cats could have also impacted the number of rats caught. Some farms are located at a significant distance from villages and farmers prefer to build temporary shelter where they camp and tend to their farms during the week and return to the village during the weekend. Domestic animals such as cats and dogs can aggregate around such makeshift camps and in this way become feral. Feral cats in particular are a major threat to native birdlife. Other invasive mammals observed during the trip included one juvenile feral cat and six wild pigs caught by guide Aporosa Maya. Wild pig wallows are common throughout the Emalu forest and according to the guides the wild pigs are a significant cause of crop damage. Pigs can also cause damage to native biodiversity, in particular through destroying seedlings, and contributing to soil erosion. Although mongooses were not directly observed within the Emalu Forest according to guides they can be seen around the villages, and it is likely there is incursion into the forest where, like cats they pose a significant threat to native birdlife. 85 8.6 Recommendations In terms of the potential for further study of invasive species, the following have been identified as areas for further action: 1. Long-term monitoring of Spathodea campanulata. Emalu is an ideal site for long-term monitoring as this species is considered highly invasive, but currently has very low abundance in the area. Assessing its spread in relation to disturbances or other ecological factors over time would elucidate further information as to its invasiveness potential in Fiji. 2. A dedicated mongoose-trapping study over a longer time period is needed to definitively establish if one or both of the two mongoose species in Fiji are present in the Emalus area. Some general control measures which would help lessen the damage done by invasive species, and on which there needs to be awareness-raising in the villages are: 3. Control of feral pig populations through de-sexing of alpha male pigs, and a bounty system for pig hunters. 4. Limitation of the establishment of new farms to reduce encroachment on grassland and secondary forest. 86 CHAPTER 9: ARCHAEOLOGICAL SURVEY Elia Nakoro and Sakiusa Kataiwai 9.1 Summary The land belonging to the mataqali Emalu is rich in historical and cultural material remains that have not been documented until this survey. The historical remains are scattered all throughout the mataqali land, a widespread distribution of elaborate hilltop and lowland settlement and fortifications some of which are associated with sophisticated irrigation systems for terrace agriculture. The general physical setup of settlements depicts various forms of insecurity in the past, a time of great rivalry and competition. Supporting evidence for this can be found in some of the structures of the hill fortifications that were encountered. Constructing on high elevation is a survival strategy whereby communities used their natural environment and rugged terrain to provide security. Further evidence to support the notion that the area was densely populated was given by the series of large intricate irrigation systems discovered during this survey. The discovery of these elaborate channels suggests larger populations to implement and maintain this agricultural system. The study of the cultural footprints within the Emalu study area is vital in understanding why the people of Emalu chose to live in such remoteness and rugged terrain, as well as their socio-cultural relations and their responses to altering natural and climatic conditions. Generally, the archaeological finds during this survey have considerable cultural value to the local community as well as at the national level. The significance of these sites can be determined and derived by deconstructing the value of the individual sites into the following components; aesthetic, symbolic, social, historic, authenticity and spiritual values. 9.2 Introduction A collaborative archaeological survey was undertaken to outline the cultural connection the land has to the people of the mataqali Emalu and surrounding communities with an emphasis on identifying and describing cultural sites of significance for which there is tangible evidence. The mataqali Emalu, from the village of Draubuta, possesses a rich historical background with ancestral ties and links connected to the Emalu forest in which their generational history and cultural livelihood have been strongly maintained. The Emalu forest plays a primary role in the cultural identity and history of the mataqali, as their forefathers inhabited the area utilizing its resources and settling extensively 87 throughout the land as highlighted in this extract by A. Brewster, the Commissioner of Colo North and East provinces in the late 1800s: At the time when the ancestral gods were sent forth, Qicatabua went to Qamo, which is near to Serua. Having arrived there, he disliked being on the sea coast, and made up his mind to proceed into the hills in the interior, and so departing thence he went upwards to Vautabu and came to the Wailevu, which he followed down to Navua and then he arrived at Busa Levu. (Note: The great plateau of moorland and swamp in which rises the Wainisavulevu or River of the great falls, a feeder of the Wainimala head of the Rewa. North of the Busa Levu is the valley of the Sigatoka River and south west of the Navua River. This plateau is very nearly in the centre of Viti Levu. A.B.B.) He followed the plateau up until he came to a hill, which he called Emalu and thought that he would build his village there. He did build houses and made clearings for gardens but he took a dislike to it, and arising he went on his way. He followed the Mavuvu River (a tributary of the Navua) until he came to Veinuqa, afterwards arriving at a place called Nasaqaruku. Some of his men who were with him said they would like to remain there and Qicatabua gave them permission to do so, and they built some houses there at Nasaqaruku. Now the name of the clan who remained at that place is Nataritale. Then he went upstream to Toluga, and then some more of his followers said they would stop there. Then he went on to another place called Nasakikisaqora. There stayed his priest, Siliece. Then he went on to Sirowala, and there stopped another of his followers whose name was Vadra. Then he went along the ridge at Naonou and descending followed another ridge, Naraiyawa, then he got down to the river (the Sigatoka River) and got to a place called Nakavu, and there stayed another of his young men by the name Quna. Then he came to another stream, the Wainimosi, which he followed up to a marsh called Nabudoi. Then he ascended a ridge and he said he would rest there, and called the place Emalu… (Brewster, 1921) 9.3 Methodology With the assistance of village guides through collaboration of oral history and correspondence, areas of interest were identified and located in the study area. Location data of each site was captured utilising a GPS unit (Garmin GPSmap 76CSx). Site notation was carried out and photographic documentation of sites was made with a camera (Practica Luxmedia 14-Z4). 9.4 Results During the field survey, a total of 77 sites were documented. Their locations are shown in Map 12 and Map 13 and a brief description of each site is given in Appendix 24. Photographs of some of the sites are shown in Fig. 68 - Fig. 97. 9.4.1 Sites of interest Seven of the most interesting sites are described in detail below. 88 M28-0008 Extending along a flatland situated in lowland forest, the site displayed identified features approximately within a 20m length zone from the first identified feature to the furthest. Altogether, three evident house mound features were identified: the first of which exuded significance in structure as the mound was more elevated than usual, at a height of about 3m, containing a stone alignment that was demonstrated along a portion of the mound surface. According to locals, this significant mound may be the remains of a temple mound or burekalou indicated by the elevation in the structure. The remaining identified features were two house mounds which were sufficiently preserved, displaying a vague structure that demonstrated an adequate appearance of its original formation. M28-0016 This is a significant site of sentimental value to the mataqali Emalu as it represents an aspect linked directly to the ancestral relations, background, oral accounts and values that define and verify the mataqali and its cultural affiliations. The site is demarcated by a pool, in which flows the Nasa Creek. According to the local oral narrative, the pool is the final resting place for the endemic cicada, locally known as nanai (Raiateana knowlesi). In the final stages of their life cycle, the cicadas flock to this pool to perish, an event that occurs every eight years. The nanai is the traditional manumanu or animal totem of the mataqali Emalu and through this site identification, a considerable part of the historical link the mataqali Emalu has with the land or vanua of Emalu, was established. M28-0055 The site is quite extensive, covering a large area along the ridgeline with a total of nine house mounds identified among two platforms that are conjoined, forming a terrace-like construction over an extensive distance, as the landscape descends towards the west. The first identified platform is situated at the initial area of inspection on the east side of the site area. This platform reached a total length of 50m from either end with an identified width of 30m accommodating much of the identified cultural features belonging to this site. The first identified mound is rectangular in structure, 8.5 x 6.5m and is highly raised compared to associated mounds-at least a meter above the ground. Due to its elevated structure, this mound feature may represent a rank or status associated in cultural communities. The second identified mound has a diameter of 8m and is raised at 60cm from the ground displaying a well-preserved structure of its original form. The third mound is circular and has a diameter of 8m with height raised at 60cm. The fourth mound is the largest mound feature identified in the area and is centrally located. The mound is rectangular structured, having a length of 9m with a width of 7.5m. The fifth house mound is identified as circular with a diameter of 7m 89 and a height of 150cm, well preserved. The sixth identified house mound is situated on the western edge as the landscape descends to the second identified platform. The mound is circular structured with a diameter of 7.5m and raised at 50cm, however, closer inspection revealed that this mound has undergone disturbance through erosion processes. At the edge of the northern wall of the platform, the team identified the seventh house mound that was conjoined to the platform unlike the associated mounds which were situated upon the platform. This mound is circular structured and extends outwards from the platform. The platform is elevated 40cm higher than the mound feature, creating a terrace-like structure. The mound has a diameter of 7m and is raised 60cm from ground level. As inspection continued towards the west, the team descended onto a second platform that accommodated two house mounds. The initial identified mound on this platform is the eighth house mound. This mound is circular structured with a diameter of 7m and raised at 50cm. Along with this mound is the ninth identified feature of another circular mound with a diameter of 6.5m and raised at 60cm. Both mounds are situated on this second platform on the west section of the site area. This platform extends 12 x 9.5m and is thickly vegetated with little undergrowth. M28-0059 – Nanaga This site has been designated for site monitoring due to cultural material remains in the form of stone alignment which are quite intact. The site is bordered by the Mavuvu Creek which borders the east and south of the unique study area. The site is elevated from the banks of the Mavuvu Creek and is quite extensive covering an area of about 70m in a north to south orientation and a width of 65m along an east to west orientation however, areas beyond may be included but could not be surveyed as dense vegetation and thickets limited access to these areas. The site consisted of well-preserved cultural features that may define traditions that were once practiced in the past. Upon inspection, the team identified rock walls or baivatu, which were constructed elaborately around the site area. These rock walls were measured at 1.2m wide and constructed in a circular manner with a portion of the rock wall redirected from its key route to form another parallel formation along the east side of the rock wall system. This parallel formation of the outer rock wall extended to about 15m in a north-east orientation, ending at the eastern edge of the elevated platform which the site is situated upon. The rock wall system encircles until it ends as a three-quarter circle formation as a portion of the remainder has undergone disturbance. A protruding rock wall formation projects southwards from the main system extending to about 10m. At the centre of the surrounding rock wall is a hollow area with the surface dipping gradually. The vegetation of the area is predominately covered with bamboo and some moli kana (Citrus grandis), yasiyasi (Syzygium fijiense), makita (Parinari glaberrima), sawira (Dysoxylum richii) and sago palm shoots, locally known as soga. 90 Several researchers have conducted thorough studies on the ceremonial use of the remarkable stone enclosure known as nanaga sites. The extent of these sites is confined to a small area- less than a third of Viti Levu. These are the provinces of Serua and Navosa with two sites in the upper Wainimala River, Narokorokoyawa area, Naitasiri and appear to have been used up until 1876 during the end of the Colo (highland) rebellion and the acceptance of Christianity caused them to fall into disuse (Palmer, 1971). According to Palmer (1971), the nanaga sites are an archaeological manifestation pertaining to certain Fijian ceremonials marking their New Year about the end of October or the beginning of November. Palmer’s research sufficiently connects the use of the nanaga sites with initiation, circumcision, pig worship and perhaps preparations for warfare. Considered a cult or a secret religious society bound together by the common link of initiation resembling certain Australian and Melanesian rites, the nanaga was the “bed” of the ancestors, that is where their descendants might hold communion with them; the baki were the rites celebrated in the nanaga, from the initiation of youths or presenting the first fruits, recovering the sick, or winning charms against wounds in battle (Thomson, 1908). M28-0065 This is the most extensive old village site that was recorded within the mataqali Emalu boundary. The site is known as Nasaqaruku and was documented by Brewster (1921) in his records of the migration of the mataqali Emalu. The site begins on a stretch of flat land and includes a nearby ridge. Nasaqaruku contains 30 identified house mounds and more would have been uncovered if the lush vegetation cover was cleared. The level of erosion in the area is high and could also contribute to the loss of several house mound features at the foot of the ridge. Most of the house mounds are aligned with stones and have been displaced over time by surface runoff. Similarly, wild pig trails and human harvesting of wild yams are widely evident. On the south-western side of the settlement and along the ridge stands a house mound 3m high and has a diameter of 6m. The structure is typical of a traditional temple or burekalou and constructed on a platform so that it is higher above all the other house mounds. The structure is raised earthen material and has withstood the devastating forces of natural elements. Apart from the evidence of house mounds, other cultural remains include plain pottery sherds found scattered in some parts of the area, and the culturally introduced plant indicators such as moli kana, vasili, saqiwa and kavika. M28-0066 This is a fortified settlement strategically constructed on a hill east-southeast of the rock shelter site M28-00071. The hill fortification is immense and contains several exceptional features that are well preserved. Outlined in a north-northwest to south91 southeast direction, the site runs along a ridge. Habitational platforms are carved onto the surface and accommodated four house mounds. Each house mound is embedded with stone lining some of which have been displaced due to natural causes. As the ridge line drops on the south-southeast end of the site, rocks are piled in a heap up to 2.5m high. The stones are piled as if to await adversaries and probably were never used, as the stones are stacked in a dome like structure. Further down the slope two defensive pits are dug deep into the floor of the ground separated by a 1m wide causeway. The pits are about 2.5m long and about 1.5m wide and dug following the direction of the ridge line. As the relief begins to ascend to the next ridge level another set of stones piled up to form a defensive wall that is about 2.5m high, half a meter wide and about 4m long. At the end of the stone wall are two huge rock outcrops to strengthen the western corner of the wall aided with a steep slope, leaving no room for safe passage through. The vegetation of the area is that of scattered secondary vegetation cover of huge trees like dakua makadre (Agathis macrophylla), baka (Ficus obliqua), and marasa (Elattostachys falcata). The stone features are cloaked with thickets of vines that have held the stones in place over the years. M28-0068 Similar to Nasaqaruku old village site (M28-0065), the footprint of this cultural relic is extensive and stretches approximately 530m along a ridgeline southwest of the site described above. A total of 26 house remains were surveyed with sizes that vary all throughout the site. The average size of the house mounds is 6.8m to 8.6m. In different parts of the site there are massive platforms upon which several house mounds are constructed. The eastern corner contains an oval platform that is 5m high, 30m long, 16m wide and holds three house mounds. The foot of the platform is enclosed with a 15m flat area where four house mounds can be found on the east of the platform. This is the only portion of the site where the mounds and the platform are symmetrical. The mid-section of the site contains three platforms each more than 30m long and highly raised well above 3m. The first platform is separated from the next by a ditch that is 2.5m deep and 4m wide. Several obvious house mounds of raised earthen materials are constructed on these platforms. The house mounds are well intact with slow erosion seen on the edges. The thick canopy cover and floor vegetation preserved the cultural remains from heavy downpour. Towards the west of the settlement, the ridge runs southwest and the cultural remains continues for another 121m consisting of a platform that is almost 30m long, 9m wide and raised 5m from the ground surface. The platform holds four house mounds while several more were constructed on the lower elevation. A 5m wide ditch seals off the end of the settlement as the ridge begins to slope downward to the lower reaches of the hill. 92 9.4.2 Monitoring sites The increasingly intensive use and modification of the landscape resulting from modern demands for efficient infrastructure and land use (agricultural production, mining, energy sources, logging, etc.) exerts growing pressure on cultural heritage in the landscape. A summary of the threats and disturbances affecting the sites is provided in Table 2. Table 2. Site disturbance factors and threats within Emalu. Type of Disturbance/threat disturbance/threat description Nature These threats occur naturally and cause irreversible damage tropical cyclones, earthquakes, heavy rain and erosion processes contribute to changing and shaping the natural and cultural landscape. Human Animal Sites affected All the sites documented the effects of natural events on the remains of cultural heritage site features. The dominant natural element affecting the structures is heavy rain which leads to the erosion of the edges of the house mounds, infilling of fortification ditches and causeways. Heavy rain also results in fluvial formation of rills and gullies thus displacing stone alignment and washing away the material remains. These are threats that About 95% of the sites identified contained are caused or related to human trails either travelling between human inhabitance & provinces but mostly from hunting and activities in and around gathering. the area of study. These are threats that Pig hooves and snout trails covered about 60are caused or related to 70% of the sites surveyed. Dog trails were animals-grazing, also encountered but pose little threat to the breeding and sites. inhabitation activities specifically wild pigs The 77 culturally significant sites encountered and documented during this survey are widely distributed across the study area. Since the Emalu land boundary is vast and accessibility is hindered by rugged terrain, the Archaeology team recommends that two sites, M28-0059 and M28-0046, be used for monitoring purposes. A summary of the framework within which this monitoring could occur is presented in Table 3. Site M28-0059 can be easily accessed from either Navitilevu Village or Draubuta Village, both in the province of Navosa and located on the valley flats along Mavuvu Creek. However, site M28-0046 is located upland and results from the assessment will be used for comparison of threats that affect cultural heritage sites. These sites are most suitable for such a study given the outstanding cultural remains found here. The degradation of the site will be examined every two years by using traditional methods of site visitation and capturing still images of the area during the period of 93 the REDD+ program. Data from other teams such as aerial/satellite images of the forest cover can also be a tool used for the process depending on data availability. Table 3. Indicators and monitoring plan for cultural sites in Emalu. Theme Indicators Monitoring Tool Assessing the current state of the sites and monitor the changes through time Threats to the sites Identifying the threats that affect the state of the sites Choosing two sites for the Access to the sites assessment of the above variables with access to the site as comparison Cultural valuation The two sites differ in cultural value of the sites Reporting State of the sites Cultural heritage sites Assessment report every two years Remote sensing even though costly, could also be a useful tool to map out the changes in the monitoring site by using laser-based sensors and radar in particular Synthetic Aperture Radar to see the ground or surface changes or even identify subsurface remains. 9.5 Conclusion The land belonging to the mataqali Emalu is rich in historical cultural material remains that have never been documented. The historical remains are scattered all throughout the mataqali land, a widespread distribution of elaborate hilltop and lowland settlement and fortifications some of which are associated with the sophisticated irrigation systems for terrace agriculture. The cultural footprints indicate the vast number of activities at one stage in history occurring in the remote highlands of Navosa. It also demonstrates the dense populations of the area where the sites occur close to each other and are mostly constructed along the ridgeline. The general physical setup of settlements depicts various forms of insecurity at that time-a time of great rivalry and competition. Supporting evidence can be found in some of the structures of the hill fortifications that were encountered. Constructing on high elevation is a survival strategy whereby communities used their natural environment and rugged terrain to provide security. Further evidence to support the notion that the area was densely populated was given by the series of large intricate irrigation systems discovered during this survey. The discovery of these elaborate channels suggests larger populations to implement and maintain this agricultural system. However the drive and intentions of the local people related to the social structure and hierarchy in Fijian communities still remain undefined. 94 The study of the cultural footprints within the Emalu study area is vital in understanding the patterns and motivational factors related to inland migration: why the people of Emalu chose to live in such remoteness and rugged terrain, sociocultural relations and their responses to altering natural and climatic conditions. Generally, the archaeological finds during this survey have considerable cultural value to the local community and at national level. The significance of these sites can be determined and derived by deconstructing the value of the individual sites into the following components; aesthetic, symbolic, social, historic, authenticity and spiritual values. All the sites identified include one of these values while some may incorporate all, however an absent values does not lessen the significance of a site as it holds the ancestral history of the hill tribes of Fiji. 9.6 Conservation recommendations Fiji has an ancient, complex and unique cultural heritage preserved in its archaeological sites. Unfortunately much of this record has been carelessly destroyed through human activity. The large scale of current and planned land development activity in Fiji poses a great threat to remaining sites, thus preservation activities are crucial to saving Fiji’s archaeological heritage. Fiji’s archaeological environment represents a valuable and irreplaceable record of the nation’s cultural and social development. For this reason alone it is important that these sites be maintained well. In addition to its historical, cultural and archaeological merits the historic heritage also forms a readily available resource of considerable amenity, education, scientific, recreational and tourism value to the people of Fiji and visitors alike. The archaeological assessment revealed valuable information pertaining to the mataqali Emalu and neighbouring communities historically linked to the land. Various findings of cultural assets were able to ascertain that these ancestral sites conveyed immeasurable knowledge and understanding of the history pertaining to traditional and cultural developments, linked closely to the identity of its people. It depicts the movement and settlement patterns of their ancestors and the forms of survival which defined their everyday lives. Such history must be preserved whether tangible or intangible, however, various threats and disturbances of these cultural sites have, to an extent, altered important aspects of material history of the vanua of Emalu. All the sites identified are protected in Fiji under the Preservation of Objects of Archaeological and Palaeontological Interest Act (1940). Recommendations are: • that proper documentation of the assessment and oral history be undertaken to avoid the loss of traditional knowledge and history of the study area, 95 • the Fiji Museum Archaeology department is included in any future surveys to allow for completion of assessments of areas that have been overlooked, namely, the area on the southwest of the land boundary, • a presentation of significant findings be done to raise awareness in the region, an activity for which the Fiji Museum is available. 96 APPENDICES Appendix 1. Species checklist of the non-vascular flora and lichens Family Hornworts Anthocerotaceae Anthocerotaceae Anthocerotaceae Anthocerotaceae Dendrocerotaceae Dendrocerotaceae Dendrocerotaceae Dendrocerotaceae Notothyladaceae Liverworts Anastrophyllaceae Anastrophyllaceae Aneuraceae Aneuraceae Aneuraceae Aneuraceae Dumortieraceae Geocalycaceae Geocalycaceae Geocalycaceae Geocalycaceae Geocalycaceae Hymenophytaceae Jamesoniellaceae Jamesoniellaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jubulaceae Jungermanniaceae Jungermanniaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Species Folioceros amboinensis (Schiffn.) Piippo Folioceros fuciformis (Mont.) D.C.Bharadwaj Folioceros gladulosus (Lehm. et Lindenb.) D.C.Bharadwaj Folioceros pinnilobus (Steph.) D.C.Bharadwaj Dendroceros cavernosus J.Haseg. Dendroceros granulatus Mitt. Dendroceros javanicus (Nees) Nees Megaceros flagellaris (Mitt.) Steph. Phaeoceros carolinianus (Michx.) Prosk. Plicanthus birmensis (Steph.) R.M.Schust. Plicanthus hirtellus (F.Weber) R.M.Schust. Aneura maxima (Schiffn.) Steph. Lobatiriccardia coronopus (De Not. Ex Steph.) Furuki Riccardia alba (Colenso) E.A.Br. Riccardia graeffei (Steph.) Hewson Dumortiera hirsuta (Sw.) Nees Heteroscyphus argutus (Reinw., Blume et Nees) Schiffn Heteroscyphus aselliformis (Reinw., Blume et Nees) Schiffn Heteroscyphus coalitus (Hook.) Schiffn. Heteroscyphus succulentus (Gottsche) Schiffn. Notoscyphus lutescens (Lehm. et Lindenb.) Mitt. Hymentophyton flabellatum (Labill.) Dumort. ex. Trevis. Cuspidatula contracta (Reinw., Blume et Nees) Steph. Denotarisia linguifolia (De Not.) Grolle Frullania apiculata (Reinw., Blume et Nees) Nees Frullania arecae (Spreng.) Gottsche var. arecae Frullania cf. capillaris Frullania chevalieri (R.M.Schust.) R.M.Schust. Frullania cordistipula (Reinw., Blume et Nees) Dumort. Frullania ericoides (Nees) Mont. Frullania f. intermedia Frullania f. intesmed Frullania gaudichaudii (Nees et Mont.) Nees et Mont. Frullania gracilis (Reinw., Blume et Nees) Gottsche, Lindenb. et Nees Frullania intermedia (Reinw., Blume et Nees) Gottsche, Lindenb. et Nees Dumort. Frullania meyeniana Lindenb. Frullania neurota Taylor Frullania nodulosa (Reinw., Blume et Nees) Nees Frullania ramuligera (Nees) Mont. Frullania ternatensis Gottsche Conoscyphus trapezioides (Sande Lac.) Schiffn. Jamesoniella flexicaulis (Nees) Schiffn. Acrolejeunea pycnoclada (Taylor) Schiffn. Archilejeunea planiuscula (Mitt.) Steph. Caudalejeunea reniloba (Gottsche) Steph. 97 Family Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Species Ceratolejeunea belangeriana (Gottsche) Steph. Ceratolejeunea vitiensis Steph. Cheilolejeunea decursiva Steph. Cheilolejeunea falsinervis (Sande Lac.) R.M.Schust. et Kachroo Cheilolejeunea intertexta (Lindenb.) Steph. Cheilolejeunea lindenbergii (Gottsche) Mizut. Cheilolejeunea trapezia (Nees, Lindenb. Et. Gottsche) R.M.Schutst et Kachroo Cheilolejeunea trifaria (Reinw., Blume et Nees) Mizut. Cololejeunea aequabilis (Sande Lac.) Schiffn. Cololejeunea amphibola B. Thiers Cololejeunea augustiflora (Steph.) Mizut. Cololejeunea cardiocarpa (Mont.) A.Evans Cololejeunea cocoscola (Angstr.) Steph. Cololejeunea diaphana A.Evans Cololejeunea equialbi Tixier Cololejeunea falcata (Horik.) Benedix Cololejeunea floccosa (Lehm.et Lindenb.) Schiffn. Cololejeunea huerlimannii (Austin) Steph. Cololejeunea inflectens Tixier Cololejeunea kulenensis (Mitt.) Benedix Cololejeunea longifolia (Mitt.) Benedix ex Mizut. Cololejeunea metzgeriopsis (K.I.Goebel) Gradst., R.Wilson, Ilk.-Borg. et Heinrichs Cololejeunea minutissima (Sm.) Schiffn. Cololejeunea obliqua (Nees et Mont.) Schiffn. Cololejeunea peraffinis (Schiffn.) Schiffn. Cololejeunea pseudoserrata Tixier Cololejeunea raduliloba Steph. Cololejeunea schmidtii Steph. Cololejeunea sintenisii (Steph.) Pocs Cololejeunea societatis Tixier Cololejeunea stylosa (Steph.) Steph.ex Mizut. Cololejeunea wightii Steph. Colura acroloba (Mont. ex Steph.) Ast Colura ari (Steph.) Steph. Colura brevistyla Herzog Colura conica (Sande Lac.) K.I.Goebel Colura corynophora (Nees, Lindeb. Et.Gottsche) Trevis. Colura crispiloba Ast Colura cristata Ast Colura leratii Ast Colura pluridentata Ast Colura queenslandica B.M.Thiers Colura superba (Mont.) Steph. Colura tenuicornis (A.Evans) Steph. Colura vitiensis Pocs et J.Eggers Dendrolejeunea fruticosa (Lindenb. Et Gottsche) Lacout. Diplasiolejeunea cavifolia Steph. Drepanolejeunea angustifolia (Mitt.) Grolle Drepanolejeunea dactylophora (Nees, Lindend. et Gottsche) Schiffn. Drepanolejeunea ternatensis (Gottsche) Spruce ex Schiffn. Drepanolejeunea vesiculosa (Mitt.) Steph. Harpalejeunea filicuspis (Steph.) Mizut. Lejeunea alata Gottsche 98 Family Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lejeuneaceae Lepicoleaceae Lepicoleaceae Lepidoziaceae Lepidoziaceae Lepidoziaceae Lepidoziaceae Lepidoziaceae Lepidoziaceae Lepidoziaceae Lepidoziaceae Lepidoziaceae Lepidoziaceae Marchantiaceae Metzgeriaceae Metzgeriaceae Metzgeriaceae Pallaviciniaceae Pallaviciniaceae Plagiochilaceae Plagiochilaceae Plagiochilaceae Plagiochilaceae Plagiochilaceae Plagiochilaceae Plagiochilaceae Plagiochilaceae Species Lejeunea anisophylla Mont. Lejeunea capensis Gottsche Lejeunea discreta Lindenb. Lejeunea exilis (Reinw., Blume et Nees) Grolle Lejeunea flava (Sw.) Nees Lejeunea lumbricoides (Nees) Nees Lejeunea sordida (Nees) Nees Lejeunea umbilicata (Nees) Nees Lepidolejeunea bidentula (Steph.) R.M.Schust. Lepidolejeunea borneensis (Steph.) R.M.Schust. Lepidolejeunea graeffei (J.B.Jack et Steph.) R.M.Schust. Lepidolejeunea integristipula (J.B.Jack et Steph.) R.M.Schust. Lepidolejeunea involuta (Gottsche) Grolle Leptolejeunea elliptica (Lehm. Et Lindenb.) Schiffn. Leptolejeunea epiphylla (Mitt.) Steph. Lopholejeunea eulopha (Taylor) Schiffn. Lopholejeunea hispidissima Steph. Lopholejeunea nigricans (Lindenb.) Schiffn. Lopholejeunea subfusca (Nees) Schiffn. Lopholejeunea zollingeri (Steph.) Schiffn. Mastigolejeunea auriculata (Wilson) Schiffn. Mastigolejeunea calcarata (Mitt. ex Steph.) Verd. Metalejeunea cucullata (Reinw., Blume et Nees) Grolle Phaeolejeunea amicorum (Hurl.) Pocs Ptychanthus striatus (Lehm. Et Lindenb.) Nees Spruceanthus polymorphus (Sande Lac.) Verd. Thysananthus retusus (Reinw., Blume et Nees) B.M.Thiers et Gradst. Lepicolea rara (Steph.) R.M.Schust. Mastigophora diclados (Brid. Ex F.Weber) Nees Bazzania erosa (Reinw.Blume et Nees) Trevis. Bazzania tridens(Reinw.Blume et Nees) Trevis. Bazzania unicegera(Reinw.Blume et Nees) Trevis. Bazzania vittata (Gottsche) Trevis Kurzia gonyotricha (Sande Lac.) Grolle Psiloclada clandestina Mitt. Telaranea lindenbergii (Gottsche) J.J.Engel et G.L.Merr. Telaranea pruinosa (Herzog) J.J.Engel et G.L.Merr. Telaranea rosarioana H.A.Mill. Zoopsidella caledonica (Steph.) R.M.Schust. Marchantia vitiensis Steph. Metzgeria ciliata Raddi Metzgeria furcata (L.) Corda Metzgeria leptoneura Spruce Pallavicinia lyellii (Hook.) Carruth. Symphyogynopsis gottscheana (Mont. Et Nees) Grolle Chiastocaulon dendroides (Nees) Carl Chiloscyphus muricatus (Lehm.) J.J.Engel et R.M.Schust. Plagiochila abietina (Nees) Nees et Mont. Plagiochila arbuscula (Brid. ex Lehm. et Lindenb.) Lindenb. Plagiochila bantamensis (Reinw., Blume et Nees) Mont. Plagiochila hampenana Gottsche Plagiochila javanica (Sw.) Nees et Mont. Plagiochila oppositum Dozy ex Sande Lac 99 Family Plagiochilaceae Plagiochilaceae Plagiochilaceae Pleuroziaceae Pleuroziaceae Porellaceae Pseudolepicoleaceae Radulaceae Radulaceae Radulaceae Radulaceae Radulaceae Radulaceae Radulaceae Radulaceae Radulaceae Radulaceae Radulaceae Schistochilaceae Schistochilaceae Schistochilaceae Schistochilaceae Schistochilaceae Schistochilaceae Solenostomataceae Solenostomataceae Solenostomataceae Solenostomataceae Treubiaceae Trichocoleaceae Mosses ? Calymperaceae Calymperaceae Calymperaceae Calymperaceae Calymperaceae Calymperaceae Daltoniaceae Dicranaceae Dicranaceae Dicranaceae Dicranaceae Dicranaceae Entodontaceae Fissidentaceae Garovagliaceae Garovagliaceae Hookeriaceae Hookeriaceae Hookeriaceae Hookeriaceae Hookeriaceae Species Plagiochila sandei Sande Plagiochila teysmannii Sande Plagiochilion braunianum (Nees) S.Hatt. Pleurozia conchifolia (Hook. Et Arn.) Austin Pleurozia gigantea (F.Weber) Lindb. Porella elegantula (Mont.) E.A.Hodgs. Temnoma setigerum (Lindenb.) R.M.Schust. Radula amentulosa Mitt. Radula campanigera Mont. Radula decurrens Mitt. Radula formosa (C.F.W.Meissn. Ex Spreng.) Nees Radula javanica Gottsche Radula lingulata Gottsche Radula protensa Lindenb. Radula reflexa Nees et Mont. Radula retroflexa Taylor Radula scariosa Mitt. Radula tjibodensis K.I.Goebel Schistochila aligera (Nees et Blume) J.B.Jack et Steph. Schistochila blumei (Nees) Trevis Schistochila caledonica Steph. Schistochila fijiensis H.Buch et Herzog Schistochila repleta (Hook.f.et Taylor) Steph Schistochila sciurea (Nees) Schiffn. Solenostoma ariadne (Taylor ex Lehm.) R.M.Schust. ex Vana et D.G.Long Solenostoma haskarlianum (Nees) R.M.Schust. ex Vana et D.G.Long Solenostoma tetragonum (Lindenb.) R.M.Schust. ex Vana Solenostoma truncatum (Nees) R.M.Schust. Ex Vana et D.G.Long Treubia lacunosa (Colenso) Prosk. Trichocolea tomentella (Ehrh.) Dumort. Cyclodictyum blumeanum Calymperes sp. Mitthyridium luteum (Mitt.) H. Rob. Mitthyridium obtusifolium (Lindb.) H. Rob. Mitthyridium sp. Syrrhopodon sp. Syrrhopodon tristichus Nees ex Schwägr. Bryobrothera crenulata (Broth. & Paris) Thér. Campylopodium euphorocladum (Müll. Hal.) Besch. Campylopus introflexus (Hedw.) Brid. Campylopus umbellatus (Schwägr. & Gaudich. ex Arn.) Paris Leucoloma sp. Leucoloma tenuifolium Mitt. Entodon solanderi (Ångström) A. Jaeger Fissidens sp. Euptychium setigerum (Sull.) Broth. Euptychium vitiense Dixon Cyathophorum sp. Cyathophorum tahitense Besch. Daltonia contorta Müll. Hal. Distichophyllum cuspidatum (Dozy & Molk.) Dozy & Molk. Distichophyllum sp. 100 Family Hookeriaceae Hypnaceae Hypnaceae Hypnodendraceae Hypnodendraceae Hypopterygiaceae Lembophyllaceae Lembophyllaceae Leucobryaceae Leucobryaceae Leucobryaceae Leucobryaceae Meteoriaceae Meteoriaceae Meteoriaceae Meteoriaceae Meteoriaceae Meteoriaceae Neckeraceae Neckeraceae Neckeraceae Neckeraceae Neckeraceae Neckeraceae Neckeraceae Orthorrhynchiaceae Orthotrichaceae Orthotrichaceae Orthotrichaceae Pallaviciniaceae Pleuroziaceae Pterobryaceae Pterobryaceae Pterobryaceae Pterobryaceae Pterobryaceae Ptychomniaceae Racopilaceae Rhizogoniaceae Rhizogoniaceae Rhizogoniaceae Sematophyllaceae Sematophyllaceae Spiridentaceae Thuidiaceae Lichen Baeomycetaceae Baeomycetaceae Baeomycetaceae Brigantiaceae Chrysotrichaceae Cladoniaceae Coccocarpiaceae Species Distichophyllum vitianum (Sull.) Mitt. Ectropothecium sp. Hypnum sp. Bescherellia cryphaeoides (Müll. Hal.) M. Fleisch. Hypnodendron dendroides (Brid.) Touw Hypopterygium vriesei Bosch & Sande Lac. Camptochaete porotrichoides (Besch.) Broth. Camptochaete subporotrichoides (Broth. & Geh.) Broth. Leucobrym sanctum (Brid.) Hampe Leucobryum aduncum Dozy & Molk. Leucobryum candidum (Brid. ex P. Beauv.) Wilson Leucobryum scalare Müll. Hal. ex M. Fleisch. Aerobryopsis longistima (Dozy & Molk.) M.Fleisch. Aerobryopsis vitiana (Sull.) M. Fleisch. Aerobryopsis wallichii (Brid.) M. Fleisch. Floribundaria aeruginosa (Mitt.) M. Fleisch. Papillaria helictophylla (Mont.) Broth. Papillaria leuconeura (Müll. Hal.) A. Jaeger Himantocladium plumula (Nees) M. Fleisch. Homaliodendron flabellatum (Sm.) M. Fleisch. Neckeropsis lepineana (Mont.) M. Fleisch. Nedceropsis sp. Pinnatella ct. ambigua Pinnatella kuehliana (Bosch & Sande Lac.) M. Fleisch. Pinnatella sp. Orthorrhynchium elegans (Hook. f. & Wilson) Reichardt Macromitrium angulatum Mitt. Macromitrium incurvifolium (Hook. & Grev.) Schwägr. Macromitrium involutifolium (Hook. & Grev.) Schwägr. Pallavicinia sp. Pleurozia gigantea (F. Weber) Lindb. Calyptothecium seminerve E.B. Bartram is an unresolved name Garovaglia elegans (Dozy & Molk.) Hampe ex Bosch & Sande Lac. Garovaglia powellii Mitt. Symphysodon vitianus (Sull.) Broth. Symphysodontella cylindracea (Mont.) M. Fleisch. Ptychomnion aciculare (Brid.) Mitt. Racopilum sp. Pyrrhobryum sp. Pyrrhobryum spiniforme (Hedw.) Mitt. Rhizogonium graeffeanum (Müll. Hal.) A. Jaeger Acroporium sp. Meiothecium hamatum (Müll. Hal.) Broth. Spiridens aristifolius Mitt. Thuidium sp. Baemyces heteromorphus Nyl.ex C.Bab.&Mitt. Dibaeis absoluta Kalb & Gierl Dibaeis sorediata Kalb & Gierl Brigantiaea leucoxantha (Spreng.)R. Sant. & Hafellner Chrysothrix xanthina (Vain.)Kalb Cladonia macilenta Hoffm. Coccocarpis glaucina Kremp. 101 Family Species Coccotremataceae Coccotrema cucurbitula (Mont.) Mull.Arg. Coenogoniaceae Coenogonium congense Dodge Gomphillaceae Calenia depressa Mull.Arg. Gomphillaceae Gyalectidium filicinum Mull.Arg. Gomphillaceae Gyalectidium imperfectum Vezda Gomphillaceae Gyalideopsis intermedia Lucking Graphidaceae Fissurina dumastioides (Fink) Staiger Graphidaceae Graphis duplicata Vain Graphidaceae Leucodecton albidulum (Nyl.) Mangold Graphidaceae Leucodecton phaeosporum (Nyl.) Rivas Graphidaceae Thelotrema circumscriptum C.Knight Graphidaceae Thelotrema defossum (Mull.Arg.) Mangold Graphidaceae Thelotrema pachysporum Nyl. Graphidaceae Thelotrema porinaceum Mull.Arg. Graphidaceae Thelotrema porinoides (Mont. & Bosh) ? Hymenochaetales Cyphellostereum pusiolum (Berk.&M.A.Curtis) D.A.Reid Megalosporaceae Megalospora sulphurata Meyen Meruliaceae Dictyonema irpicinum (Mont.) Nyl. Pannariaceae Pannaria tavaresii P.M.Jorg Parmeliaceae Hypotrachyna imbricatula (Zahlbr.) Hale Parmeliaceae Parmotrema abessinicum (Nyl.ex Kremp.) Hale Parmeliaceae Relicina abstrusa (Vain.) Hale Peltigeraceae Peltigera sumatrana Gyeln. Physciaceae Heterodermia incana (Stirt.) D.D.Awasthi Piliocarpaceae Badimia elegans (Vain.) Vezda Pilocarpaceae Byssoloma leucoblepharum (Nyl.)Vain. Porinaceae Porina brisbanensis Mull.Arg. Pyrenulaceae Pyrenula kurzii Ajay Singh & Upreti Stereocaulaceae Lepraria lobificans Nyl. Strigulaceae Strigula maculata (Cooke & Massee) Thelotremateae Melanotopelia rugosa (Kantvilas & Vezda) Mangold & Lumbsch SUMMARY: 72 Families, 133 Genera 102 Appendix 2. Annotated checklist of the vascular flora of Emalu. Family Scientific Name Local name Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive 103 Angiosperm – Dicotyledons Alangiaceae Alangium vitiense (A.Gray) Baill. ex Harms Anacardiaceae Buchanania attenuata A.C.Smith Anacardiaceae Buchanania vitiensis Engl. Anacardiaceae Dracontomelon vitiense Engl. Anacardiaceae Pleiogynium timoriense (DC.) Leenh. Anacardiaceae Rhus simarubifolia A.Gray Anacardiaceae Semecarpus vitiensis (A.Gray) Engl. Annonaceae Cananga odorata (Lam.) Hook.f.& Thoms. Annonaceae Cyathocalyx cf. insularis Annonaceae Cyathocalyx insularis A.C.Sm. Annonaceae Cyathocalyx sp. Annonaceae Polyalthia laddiana A.C.Smith Annonaceae Xylopia sp. Apiaceae Centella asiatica (L.) Urb. Apocynaceae Alstonia montana Turrill Apocynaceae Alstonia pacifica (Seem.) A.C.Smith Apocynaceae Alstonia vitiensis Seem. Apocynaceae Alyxia sp. Apocynaceae Cerbera manghas L. Araliaceae Plerandra insolita A.C.Sm. Araliaceae Plerandra pickeringii A.Gray Araliaceae Polyscias joskei Gibbs Araliaceae Polyscias multijuga (A.Gray) Harms Araliaceae Schefflera vitiensis (A.Gray) Seem. Araucariaceae Agathis macrophylla (Lindl.) Mast. Asclepiadaceae Hoya australis R.Br. Asteraceae Ageratum conyzoides L. Asteraceae Conyza bonariensis (L.) Cronquist Asteraceae Crassocephalum crepidioides (Benth.) S.Moore Asteraceae Cyanthillium cinereum (L.) H.Rob. Asteraceae Elephantopus mollis H.B.K. dalovoci, dokonisau Kaukaro maqo ni veikau Tarawau tarawau Kaukaro Makosoi Mako makosoi ni veikau dulewa, makosoi ni veikau dulewa sorua sorua lailai sorua levu vasa sole sole sole danidani sole dakua makadre hoya botebotekoro ironweed Indg., nat., end. Indg., nat., poss.end Indg., nat., end. Indg.pres. Intrd., cult. Indg., nat., cmm. Indg., nat., cmm. Indg.pres. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., poss.nat. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Intrd., cult. Intrd., poss.cult. Intrd., cult. Intrd., cult. Indg., nat., cmm. Indg., nat., cmm. Intrd., cult. Family Scientific Name Local name Asteraceae Asteraceae Asteraceae Asteraceae Asteraceae Asteraceae Asteraceae Balanophoraceae Barringtoniaceae Burseraceae Burseraceae Burseraceae Burseraceae Caesalpiniaceae Caesalpiniaceae Caesalpiniaceae Caesalpiniaceae Caesalpiniaceae Caesalpiniaceae Caesalpiniaceae Caesalpiniaceae Caesalpiniaceae Cassythaceae Casuarinaceae Casuarinaceae Ceasalpiniaceae Chrysobalanaceae Clusiaceae Clusiaceae Clusiaceae Clusiaceae Clusiaceae Clusiaceae Clusiaceae Emilia sonchifolia (L.) DC. Mikania micrantha H.B.K. Pseudelephantopus spicatus (B.Juss. ex Aubl.) C.F.Baker Synedrella nodiflora (L.) Gaertn. Vernonia cinerea (L.) Less. Wedelia trilobata (L.) Hitchc. Wollastonia biflora (L.) DC. Balanophora fungosa J.R.&G.Forst. Barringtonia sp. Canarium harveyi Seem. Canarium vanikoroense Leenh. Canarium vitiense A.Gray Haplolobus floribundus (K.Schum) Lam Caesalpinia major (Medik.) Dandy & Exell Chamaecrista nictitans (L.) Moench Cynometra falcata A.Gray Cynometra insularis A.C.Sm. Kingiodendron platycarpum B.L.Burtt Maniltoa grandiflora (A.Gray) Scheffer Senna occidentalis (L.) Link Senna tora (L.) Roxb. Storckiella vitiensis Seem. Cassytha filiformis L. Casuarina equisetifolia J.R.& G.Forst. Gymnostoma vitiense L.A.S.Johnson Maniltoa floribunda A.C.Smith Parinari insularum A.Gray Calophyllum ambiphyllum A.C.Smith & S.Darwin Calophyllum cerasiferum Vesque Calophyllum inophyllum L. Calophyllum leptocladum A.C.Sm. & S.P.Darwin Calophyllum neo-ebudicum Guillaumin Calophyllum vitiensis Turrill Garcinia adinantha A.C.Sm. & S.P.Darwin Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive mile a minute ironweed vutu kaunicina, kaunigai kaunisiga kaunicina B kaunigai, kaunigai soni 104 moivi moivi moivi cibicibi, moivi marasa nokonoko velau cibicibi Sea/sa damanu dilodilo damanu draulevu damanu (lailai) damanu draulailai damanu kula damanu bulu Indg., nat., cmm. Intrd., cult. Intrd., cult. Intrd., cult. Indg.pres. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., cult. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Intrd., cult. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Family Scientific Name Local name Clusiaceae Clusiaceae Clusiaceae Clusiaceae Combretaceae Connaraceae Crassulaceae Cucubitaceae Cunoniaceae Cunoniaceae Degeneriaceae Dichapetalaceae Dioscoreaceae Ebenaceae Ebenaceae Ebenaceae Ebenaceae Elaeocarpaceae Elaeocarpaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Garcinia myrtifolia A.C.Smith Garcinia pseudoguttifera Seem. Garcinia sessilis (Forst.f.) Seem. Garcinia vitiensis (A.Gray) Seem. Terminalia catappa L. Connarus pickeringii A.Gray Kalanchöe pinnata (Lam.) Pers. Momordica charantia L. Geissois ternata A.Gray Weinmannia vitiensis Seem. Degeneria vitiensis I.W.Bailey & A.C.Smith Dichapetalum vitiense (Seem.) Engl. Dioscorea bulbifera L. Diospyros elliptica (J.R.&G.Forst) P.S.Green Diospyros foliosa (Rich ex A.Gray) Bakh. Diospyros major (G.Forst.) Bakh. Diospyros sp. Elaeocarpus chelonimorphus Gillespie Elaeocarpus kambi Gibbs. Acalypha insulana Müll.Arg. Acalypha repanda Müll.Arg. Acalypha rivularis Seem. Acalypha sp. Aleurites moluccana (L.) Willd. Antidesma elassophyllum A.C.Sm. Baccaurea pulvinata A.C.Sm. Baccaurea sp. Bischoffia javanica Blume Croton microtiglium Burkill Drypetes vitiensis Croizat Endospermum macrophyllum (Muell.Arg.) Pax & Hoffm. Euphorbia cyathophora Murray Glochidion anfractuosum Gibbs Glochidion concolor Müll.Arg. Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive bulu bulu m, laubu bulu wai tavola vure masiratu/vavaloa kaile 105 kauloa kauloa kauloa kabi kabi kalabuci lauci molau midra midra koka danidani kauvula makovatu molau Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., cult. Indg., nat., end. Intrd., adv. Intrd., adv. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Intrd., cult. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Family Scientific Name Local name Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Euphorbiaceae Fabaceae Fabaceae Fabaceae Fabaceae Fabaceae Flacourtiaceae Flacourtiaceae Flacourtiaceae Gonystylaceae Goodeniaceae Hernandiaceae Icacinaceae Icacinaceae Lamiaceae Lauraceae Lauraceae Lauraceae Lauraceae Lauraceae Lauraceae Lauraceae Loganiaceae Loganiaceae Loganiaceae Malvaceae Malvaceae Malvaceae Malvaceae Glochidion vitiense (Müll.Arg.) Gillespie Homalanthus nutans (G.Forst.) Guill. Macaranga graeffeana Pax & K.Hoffm. Macaranga harveyana (Muell.Arg.) Muell. Macaranga seemannii (Muell.Arg.) Muell. Phyllanthus sp. Crotalaria pallida Ait. Derris trifoliata Lour. Milletia elliptica (Roxb.) Steud. Mucuna cf. platyphylla Mucuna gigantea (Willd.) DC. Flacourtia sp.? Homalium pallidum A.C.Smith Homalium vitiense Benth. Gonystylus punctatus A.C.Sm. Scaevola floribunda A.Gray Hernandia olivacea Gillespie Citronella vitiensis R.Howard Medusanthera vitiensis Seem. Hyptis pectinata (L.) Poit. Cryptocarya sp. Cryptocarya turrilliana A.C.Sm. Endiandra elaeocarpa Gillespie Endiandra gillespiei A.C.Sm. Endiandra monticola A.C.Sm. Endiandra sp. Litsea sp. Geniostoma macrophyllum Gillespie Geniostoma vitiense Gilg & Benedict Neuburgia corynocarpa (A. Gray) Leenh. Grewia sp. Hibiscus tiliaceus L. Sida acuta Burm.f.Fl. Sida rhombifolia L. Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive molau tadano gadoa dava duva vesi wai molaca mavota 106 dalovoci, duvula nuqanuqa duvu damabi lidi damabi diriniu damabi boiboida boiboida lailai bo siti vau Indg., nat., end. Intrd., adv. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., cult. Indg., poss.nat. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Intrd., cult. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Family Scientific Name Local name Malvaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Melastomaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Meliaceae Mimosaceae Mimosaceae Mimosaceae Mimosaceae Mimosaceae Moraceae Urena lobata L. Astronidium confertiflorum (A.Gray) Markgraf Astronidium degeneri A.C.Sm. Astronidium inflatum (A.C.Smith) A.C.Smith Astronidium macranthum (A.C.Smith) A.C.Smith Astronidium parviflorum A.Gray Astronidium robustum (Seem.) A.C.Smith Astronidium sessile (A.C.Smith ) A.C.Smith Astronidium sp. Astronidium storckii Seem. Astronidium tomentosum (Seem.) A.C.Smith Clidemia hirta (L.)D. Melastoma denticulatum Labill. Aglaia achiboldiana Aglaia elegans Gillespie Aglaia sp. Aglaia vitiensis A.C.Sm. Dysoxylum lenticellare Gillespie Dysoxylum quercifolium (Seem.) A.C.Smith Dysoxylum richii (A.Gray) C.DC. Dysoxylum seemannii Gillespie Dysoxylum sp. Swietenia macrophylla King Swietenia mahagoni (L.) Jacq. Vavaea amicorum Benth. Vavaea degeneri A.C.Sm. Vavaea harveyi Seem. Vavaea megaphylla C.H.Wright Albizia lebbek (L.) Benth. Entada phaseoioides (L.) Merr. Leucaena leucocephala (Lam.) de Wit Mimosa pudica L. Samanea saman (Jacq.) Merr. Ficus barclayana (Miq.) Miq. Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive dava astronidium astronidium astronidium astronidium astronidium astronidium dava astronidium astronidium koster's curse 107 kautoa kautoa kautoa levu mala malamala mala tarawau kei rakaka malamala mahogany mahogany cevua cevua cevua cevua draulevu walai vaivai raintree ai masi Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Intrd., cult. Intrd., cult. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Intrd., adv. Intrd., adv. Indg., nat., end. Family Scientific Name Local name Moraceae Moraceae Moraceae Moraceae Moraceae Moraceae Moraceae Moraceae Moraceae Moraceae Moraceae Moraceae Myrisinaceae Myrisinaceae Myristicaceae Myristicaceae Myristicaceae Myristicaceae Myristicaceae Myrsinaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Ficus fulvopilosa Summerh. Ficus greenwoodii Summerhayes Ficus masonii Horne ex Baker Ficus obliqua Forst.f.Fl. Ficus pritchardii Seem. Ficus smithii Horne ex Baker Ficus sp. Ficus storckii (scabrous) Seem. Ficus tinctoria Forst.f.Fl. Ficus vitiensis Seem. Malaisia scandens (Lour.) Plaunch. Streblus anthropophagorum (Seem.) Corner Rapanea myricifolia (A.Gray) Mez Tapeinosperma sp. Myristica castaneifolia A.Gray Myristica chartacea Gillespie Myristica gillespieana A.C.Smith Myristica grandifolia A.DC. Myristica macarantha A.C.Smith Tapeinosperma hornei Mez Decaspermum vitiense (A.Gray) Niedenzu Metrosideros collina (J.R.Forst. & G.Forst.) A.Gray Psidium guajava L. Syzygium amicorum (A.Gray) Müll.Stuttg. Syzygium confertiflorum (A.Gray) Müll.Stuttg. Syzygium corynocarpum (A.Gray) Müll.Stuttg. Syzygium curvistylum (Gillespie) Merr. & L.M.Perry Syzygium diffusum (Turrill) Merr. & L.M.Perry Syzygium dubium (L.M.Perry) A.C.Sm. Syzygium effusum (A.Gray) Müll.Stuttg. Syzygium fijiense Perry Syzygium gillespiei Merr. & L.M.Perry Syzygium gracilipes (A.Gray) Merr. & L.M.Perry Syzygium grayi (Seem.) Merr. & L.M.Perry Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive ai masi ai masi ai masi/baka ni viti ai masi lololo/losilosi ai masi, nunu ai masi/lolo/lololo 108 kaudamu kaudamu draulailai kaudamu male kaudamu male waqa dasia nuqa vuga quawa yasiyasi yasiyasi yasiyasi yasiyasi yasiyasi yasiyasi yasiyasi yasidravu yasiyasi yasiyasi yasiyasi Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Intrd., cult. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Family Scientific Name Local name Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Myrtaceae Nyctaginaceae Olacaceae Oleaceae Oleaceae Oleaceae Onagraceae Oxalidaceae Passifloraceae Passifloraceae Phytolaccaceae Piperaceae Piperaceae Piperaceae Piperaceae Pittosporaceae Pittosporaceae Pittosporaceae Polygalaceae Proteaceae Proteaceae Syzygium jambos (L.) Alston Syzygium leucanthum L.M.Perry Syzygium malaccense (L.) Merr. & Perry Syzygium minus A.C.Sm. Syzygium neurocalyx (A.Gray) Christoph. Syzygium nidie Guillaumin Syzygium oblongifolium (Gillespie) Merr. & L.M.Perry Syzygium phaeophyllum Merr. & L.M.Perry Syzygium purpureum (L.M.Perry) A.C.Sm. Syzygium quadrangulatum (A.Gray) Merr. & Perry Syzygium seemannianum Merr. & L.M.Perry Syzygium sp. Syzygium tetrapleurum L.M.Perry Syzygium wolfii (Gillespie) Merr. & L.M.Perry Pisonia umbellifera (J.R. Forst. & G. Forst.) Seem. Anacolosa lutea Gillespie Jasminum didymum G.Forst. Jasminum simplicifolium G.Forst. Jasminum sp. Ludwigia octovalvis (Jacq.) P.H.Raven Oxalis corniculata L. Passiflora foetida L.var.hispida (DC.ex Triana & Planch.) Killip Passiflora suberosa L. Rivina humilis L. Peperomia lasiostigma var. carnosa C.DC. Peperomia subroseispica C.DC. Piper aduncum L. Piper insectifugum C.DC. ex Seem. Pittosporum arborescens Rich ex A.Gray Pittosporum pickeringii A.Gray Pittosporum rhytidocarpum A.Gray Polygala paniculata L. Turrillia ferruginea (A.C.Sm.) A.C.Sm. Turrillia vitiensis (Turrill) A.C. Sm., comb.nov. Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive yasiyasi yasiyasi kavika yasiyasi yasiyasi yasiyasi yasiyasi yasiyasi yasiyasi yasiyasi yasiyasi yasiyasi roro kaukau makita 109 nuqanuqa honulu duva ni veikau kauceuti, tivi kauceuti Intrd., cult. Indg., nat., end. Intrd., cult. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., adv. Intrd., cult. Intrd., adv. Intrd., cult. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Intrd., adv. Indg., nat., end. Indg., nat., end. Family Scientific Name Local name Rhamnaceae Rhamnaceae Rhizophoraceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rubiaceae Rutaceae Rutaceae Rutaceae Rutaceae Rutaceae Rutaceae Alphitonia franguloides A.Gray Alphitonia zizyphoides (Spreng.) A.Gray Crossostylis harveyi Benth. Dolicholobium latifolium A.Gray Dolicholobium macgregorii Horne ex Baker Dolicholobium oblongifolium A.Gray Gardenia taitensis DC. Hedyotis sp. Mastixiodendron sp. Morinda citrifolia L. Morinda myrtifolia A.Gray Mussaenda raiateensis J.W.Moore Ophiorrhiza peploides A.Gray Psychotria ampullacea A.C.Sm. Psychotria argantha A.C.Sm. Psychotria confertiloba A.C.Sm. Psychotria eumorphanthus Fosberg Psychotria glabra (Turrill) Fosberg Psychotria gracilior A.C.Sm. Psychotria leptantha A.C.Sm. Psychotria roseata (Fosberg) A.C.Sm. Psychotria sp. Psychotria turbinata A.Gray Psychotria vitiensis Fosberg Psydrax odorata (Forst.f.) A.C.Smith & S.Darwin Spermacoce sp. Tarenna sambucina (G.Forst.) T.Durand ex Drake Timonius affinis A.Gray Citrus grandis (L.) Osbeck Citrus maxima (Burm.) Osbeck Euodia hortensis J.R. Forst. & G. Forst. Melicope cucullata (Gillespie) A.C.Smith Melicope vitiensis (A.C.Sm.) comb.nov. Micromelum minutum(Forst.f.)Seem. Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive doi doi soso ni ura soso ni ura levu soso ni ura jale ni veikau duvula kura 110 psychotria psychotria psychotria psychotria psychotria psychotria psychotria psychotria degedege, tabulina soso ni ura levu psychotria vakarube ni davui dogo ni vanua/dogo ni veikau moli kana moli kana uci drautolu drautolu qiqila Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Intrd., cult. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Intrd., cult. Intrd., adv. Intrd., adv. Intrd., cult. Intrd., cult. Intrd., cult. Indg., nat., end. Indg., nat., end. Intrd., adv. Family Scientific Name Local name Sapindaceae Sapindaceae Sapindaceae Sapindaceae Sapindaceae Sapindaceae Sapindaceae Sapindaceae Sapotaceae Sapotaceae Sapotaceae Sapotaceae Sapotaceae Sapotaceae Sapotaceae Sapotaceae Sapotaceae Saurauiaceae Simaroubaceae Smilacaceae Solanaceae Sterculiaceae Sterculiaceae Thymelaeaceae Tiliaceae Tiliaceae Tiliaceae Tiliaceae Triuridaceae Ulmaceae Ulmaceae Ulmaceae Urticaceae Urticaceae Cardiospermum halicacabum L. Dodonaea viscosa (L.) Jacq. Elattostachys falcata (A.Gray) Radlk. Guioa sp. Koelreuteria elegans (Seem.) A.C.Smith Pometia pinnata J.R. Forst. & G. Forst. Sapindus sp. Sapindus vitiensis A.Gray Burckella fijiensis (Hemsl.) A.C.Sm. & S.P.Darwin Burckella richii (A.Gray) H.J.Lam Burckella sp. Palaquium fidjiense Pierre ex Dubard Palaquium hornei (Hartog ex Baker) Dubard Palaquium porphyreum A.C.Sm. & S.P.Darwin Planchonella grayana H.St.John Planchonella sp. Planchonella vitiensis Gillespie Saurauia rubicunda Seem. Amaroria soulameoides A.Gray Smilax vitiensis (Seem.) A.DC. Solanum torvum Sw. Heritiera ornithocephala Kosterm. Melochia vitiensis A.Gray Wikstroemia foetida (L. f.) A. Gray Grewia crenata (J.R.&G.Forst) Schinz & Guillaumin Trichospermum calyculatum (Seem.) Burret. Trichospermum richii (A.Gray) Seem. Triumfetta procumbens G. Forst. Andruris vitiensis (A.C.Sm.) Giesen Girroniera celtidifolia Gaud. Parasponia andersonii Planch. Trema cannabina Lour. Dendrocnide harveyi (Seem.) Chew Elatostema tenellum A.C.Smith Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive usi vure/marasa manawi dawa bau 111 bau bau cevua, sacau bauvudi bausa sarosaro sarosaro midra/mimila vasa ni veikau, sasawira warusi kosipeli rosarosa/rogi siti mako loa mako sisisi drou drou salato Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., poss.end. Indg., nat., poss.end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Intrd., poss.cult. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Intrd., adv. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Family Scientific Name Local name Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive 112 Urticaceae Laportea interrupta (L.) Chew Urticaceae Leucosyke corymbulosa Benth. & Hook.f. ex Drake Urticaceae Pipturus vitiensis A.C.Smith Urticaceae Procris pedunculata (J.R. Forst. & G. Forst.) Wedd. Verbenaceae Faradaya ovalifolia (A.Gray) Seem. Verbenaceae Lantana camara L. Verbenaceae Premna protrusa A.C.Smith & S.Darwin Verbenaceae Premna serratifolia L. Verbenaceae Stachytarpheta urticaefolia (Salisb.) Sims Verbenaceae Vitex trifolia L. Vitaceae Cayratia seemanniana A.C.Smith Vittariaceae Pteris ensiformis Burm. f. Angiosperm – Monocotyledons Agavaceae Cordyline fruticosa (L.) A.Chev. Amaryllidaceae Crinum asiaticum L. Araceae Alocasia macrorrhiza (L.) G.Don Araceae Epiprenum pinnatum (L.) Engl. Araceae Xanthosoma sagittifolium (L.) Schott Araliaceae Cyphosperma tanga (H.E.Moore) H.E.Moore Arecaceae Balaka diffusa Hodel Arecaceae Balaka longirostris Becc. Arecaceae Cocos nucifera L. Arecaceae Metroxylon vitiense (H.Wendl.) H.Wendl.ex Hook.f. Arecaceae Physokentia rosea H.E.Moore Arecaceae Veitchia joannis H.Wendl. Arecaceae Veitchia vitiensis (H.Wendl.) H.E.Moore Commelinaceae Aneilema vitiense Seem. Cyperaceae Kyllinga nemoralis (J.R.Forst. & G.Forst.) Dandy ex Hutch. & Dalziel Cyperaceae Kyllinga polyphylla Willd. ex Kunth Cyperaceae Scleria lithosperma (L.) Sw. Cyperaceae Scleria polycarpa Boeck. Euphorbiaceae Macaranga seemannii (Müll.Arg.) Müll.Arg. Flagellariaceae Flagellaria indica L. Orchidaceae Appendicula sp. wavudi lantana yaro yaro dralakaka qai, vasili viavia via gaga yalu dalo nitana tanga balaka balaka (big fruit) niu, coconut soga physokentia niusawa niuniu Intrd., adv. navua sedge davo alu Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Intrd., adv. Indg., nat., cmm. Indg., nat., end. Intrd., adv. Intrd., adv. Intrd., cult. Intrd., cult. Intrd., cult. Intrd., cult. Indg., nat., end. Indg., nat., end Indg., nat., end. Intrd., cult. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., end. Indg., nat., cmm. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Family Scientific Name Local name Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Orchidaceae Pandanaceae Pandanaceae Pandanaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Poaceae Bulbophyllum incommodum Kores Bulbophyllum longiscapum Rolfe Bulbophyllum sp. Calanthe hololeuca Rchb.f. Corymborkis veratrifolia (Reinw.) Bl. Cynorckis fastigiata Thouars Diplocaulobium tipuliferum (Reichenb.f.) Kraenzl. Erythrodes parvula Kores Hetaeria whitmeei Rchb.f. Macodes cf. petola Nervilia cf. aragoana Nervilia cf. punctata Oberonia cf. equitans Pristiglottis longiflora (Rchb.f.) Kores Spathoglottis pacifica Reichenb.f. Freycinetia storckii Seem. Pandanus sp. Pandanus tectorius Parkinson Brachiaria mutica (Forssk.) Stapf Centosteca lappacea (L.) Desv. Coix lacryma-jobi L. Digitaria ciliaris (Retz.) Koeler Eleusine indica (L.) Gaertn. Imperata conferta (Presl) Ohwi Miscanthus floridulus (Labill.) Warb. ex K.Schum. & Lauterb. Paspalum conjugatum Bergius Paspalum distichum L. Paspalum orbiculare Forst.f. Paspalum paniculatum L. Paspalum vaginatum Sw. Pennisetum polystachyon (L.) J.A.&J.H.Schultes Saccharum edule Hassk. Schizostachyum glaucifolium (Rupr.)Munro Setaria glauca (L.) Beauv. Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive 113 varavara wame pandanus vadra paragrass job's tears gasau mission grass duruka Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., adv. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., rare Indg; nat., rare Indg; nat., rare Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., adv. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Intrd., cult. Intrd., cult. Intrd., cult. Indg., nat., cmm. Intrd., adv. Intrd., cult. Intrd., adv. Indg., nat., cmm. Intrd., cult. Intrd., cult. Intrd., adv. Intrd., cult. Indg., nat., cmm. Intrd., cult. Family Scientific Name Local name Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive 114 Poaceae Sporobolus indicus (L.) R.Br. Poaceae Sporobolus sp. Taccaceae Tacca leontopetaloides (L.) Kuntze Zingiberaceae Alpinia parksii (Gillespie) A.C.Sm. Zingiberaceae Geanthus cevuga (Seem.) Loesener Ferns and Fern Allies Acanthaceae Graptophyllum insularum (A.Gray) A.C.Smith Aspidiaceae Blechnum orientale L. Aspidiaceae Blechum pyramidatum (Lam.) Urb. Aspidiaceae Tectaria latifolia (Forster) Copeland Aspleniaceae Asplenium australasicum Hooker Aspleniaceae Asplenium nidus L. Aspleniaceae Asplenium polyodon Forster Cyatheaceae Culcita straminea (Labillardiere) Maxon Cyatheaceae Cyathea affinis (Forster) Swartz Cyatheaceae Cyathea alata Copeland Cyatheaceae Cyathea hornei (Baker) Copel. Cyatheaceae Cyathea lunulata (G. Forst.) Copel. Cyatheaceae Cyathea medullaris Sw. Cyatheaceae Cyathea propinqua Mett. Cyatheaceae Cyathea sp. Cyatheaceae Cyathea truncata (Brackenridge) Copeland Cyatheaceae Dicksonia brackenridgei Mettenius Davalliaceae Davallia solida Ogata Davalliaceae Nephrolepis biserrata (Swartz) Schott Davalliaceae Nephrolepis hirsutula (Forster) Presl Dilleniaceae Dillenia biflora (A.Gray) Martelli ex Dur.& Jacks Equisetaceae Equisetum ramosissimum Desf. subsp. debile (Roxb.) Hauke Gleicheniaceae Dicranopteris linearis (Burmann) Underwood Gleicheniaceae Dicranopteris sp. Gleicheniaceae Gleichenia sp.? Hypolepidaceae Histiopteris incisa (Thunberg) J.Smith Lindsaeaceae Lindsaea ensifolia Swartz Marattiaceae Angiopteris evecta (Forster) Hoffman locoloco cevuga damu ota loa birds nest balabala balabala balabala balabala cyathea (monasavu) balabala balabala balabala kuluva qato basovi Indg., nat., cmm. Indg., nat., cmm. Indg., poss.nat. Indg., nat., end. Indg., nat., rare. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., adv. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Intrd., adv. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Family Scientific Name Local name Distribution indg.=indigenous, nat.=native, end.=endemic, cmm=common, intr.-introduced, cult.-cultivated, edv.=adventive 115 Marattiaceae Marattia smithii Mettenius ex Kuhn Polypodiaceae Belvisia mucronata (Fee) Copeland Polypodiaceae Phymatosorus grossus (Langsdorff et Fischer) Brownlie Psilotaceae Psilotum nudum (L.) Palisot de Beauvois Schizaeaceae Lygodium reticulatum Schkuhr Selaginellaceae Selaginella sp. Thelypteridaceae Christella harveyi (Mettenius) Holttum Gymnosperms Araucariaceae Agathis macrophylla (Lindl.) Mast. Gnetaceae Gnetum gnemon L. Pinaceae Pinus caribaea Morelet Podocarpaceae Acmopyle sahniana Buchh.& N.E.Gray Podocarpaceae Dacrycarpus imbricatus (Blume) de Laub. Podocarpaceae Dacrydium nidulum de Laubenfels Podocarpaceae Decussocarpus vitiensis (Seem.) de Laub. Podocarpaceae Podocarpus affinis Seem. Podocarpaceae Podocarpus neriifolius D.Don SUMMARY: 100 Families, 258 Genera Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. dakua makadre sukau caribbean pine drautabua amunu yaka dakua salusalu kuasi lailai kuasi Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., cmm. Indg., nat., end. Indg., nat., cmm. Appendix 3. Summary statistics of vegetation community structure assessment plots Date Plot # Coordinates T1P1 17.94314, 177.95961 17.94322, 177.95950 17.94289, 177.95956 17.94287, 177.95954 17.94297, 177.95960 17.94327, 177.95962 17.94543, 177.96419 17.94533, 177.96411 17.94533, 177.96421 17.94556, 177.96419 17.94560, 177.96428 17.94539, 177.96440 17.94550, 177.96444 17.94530, 177.96448 17.94539, 177.96448 17.94530, 177.96438 17.94335, 177.96243 17.943384, 177.96234 17.943268, 177.96216 17.94156, 177.95419 17.94159, 177.95659 T1P2 T1P3 T1P4 T1P5 T1P6 T2P1 T2P2 T2P3 July 19 2012 T2P4 T2P5 116 T2P6 T2P7 T2P8 T2P9 T2P10 T3P1 T3P2 T3P3 July 23 2012 T4P1 T4P2 Principal Vegetation Type Dry Forest Forest/Habitat Type River flat # Ind. ≥ 5cm 13 # Tree spp. 6 Most common spp. Cit_gra Largest trees Dys_sp. # Ind. ≥ 10 cm Dom. sp. Rel. dom. (%) 5.0-72.0 B. area (stems ≥ 10cm dbh) 8404 Dys_sp. 47 Dry Forest River flat 12 4 Cit_gra 17.7 3.0- 42.0 6855 Dys_ric 76 Dry Forest River flat 9 5 5 10.5 6.0-17.0 666 Cit_gra 59 Dry Forest River flat 13 Dys_que 6 19.13 6.0-61.0 7099 Dys_len 40 Dry Forest River flat None Dys_que 4 18.3 7.0-34.0 2331 Dys_len 39 Dry Forest 5 Bac_sp. Syz_mal 7 13.07 7.0-29.0 1608 Syz_mal 42 20 6 Syz_mal Bis_jav 13 28 10.0-70.0 10432 Bis_jav 37 River flat 18 9 Syz_mal Syz_mal 6 20 10.9-27.0 2411 Syz_mal 50 Dry Forest River flat 17 8 Syz_mal Syz_spp. 10 26.57 10.0-57.0 7937 Syz_spp. 32 Dry Forest River flat 15 5 Cit_gra Syz_spp. 5 24.8 12.6-62.0 3807 Bis_jav 79 Dry Forest River flat 15 7 Syz_mal Cit_gra 10 31.21 11.1-89.0 13645 Cit_gra 46 Dry Forest River flat 10 5 Syz_mal Syz_mal 7 18.71 10.3-36.0 2319 Syz_mal 69 Dry Forest River flat 15 10 Syz_mal Dys_ric 8 23.75 10.4-86.0 7369 Dys_ric 80 Dry Forest River flat 24 10 Dys_sp. 16 30.93 10.4-61.2 22564 Dys_sp 61 Dry Forest River flat 12 5 Den_har; Lit_sp; Dys_sp Syz_mal End_sp. 6 19.16 11.3-26.9 1847 End_sp. 31 Dry Forest River flat 13 6 Syz_spp. Deg_vit 7 14.45 10.4-34.0 1939 Deg_vit 48 Dry Forest River flat 13 8 Cit_gra Bis_jav 11 14 5.0-50.0 4148 Bis_jav 45 Dry Forest River flat 12 11 Dys_sp. Dys_sp. 13 23 7.5-51.0 9054 Dys_sp. 42 Dry Forest River flat 11 10 Syz_mal Pom_pin 13 28 5.7-67.0 15753 Pom_pin 22 Dry Forest Ridge top 23 13 Fic_obl 16 23.1 10.5-132.0 23788 Fic_obl 57 Dry Forest Ridge flat 51 21 Dys_sp.; Gar_myr Lit_sp.; Cya_sp Bis_jav 28 17.3 10.0-76.0 20999 Bis_jav 26 Range (cm) 9 Av. dbh(cm) 22.3 Dys_ric. 6 Cit_gra Cit_gra 8 Cit_gra 7 7 River flat 11 Dry Forest River flat Dry Forest Date Plot # Coordinates T4P3 17.94151, 177.95689 17.94138, 177.95692 17.94133, 177.95702 17.94123, 177.95702 17.94107, 177.95716 17.94068, 177.95721 17.94073, 177.95702 17.94082, 177.95722 17.94452, 177.96008 17.94464, 177.96012 17.94451, 177.96014 17.94453, 177.95968 17.94451, 177.95967 17.94151, 177.95428 17.94166, 177.95430 17.94180, 177.9543 17.94182, 177.95452 17.94196, 177.95440 17.94149, 177.95449 17.94148, 177.95459 17.94151, 177.95469 17.94161, 177.95473 T4P4 T4P5 T4P6 T4P7 T4P8 T4P9 T4P10 T5P1 T5P2 T5P3 T5P4 117 T5P5 T6P1 July 19 2012 T6P2 T6P3 T6P4 T6P5 T6P6 T6P7 T6P8 T6P9 Principal Vegetation Type Dry Forest Forest/Habitat Type Ridge flat # Ind. ≥ 5cm 49 # Tree spp. 21 Most common spp. Lit_sp. Largest trees Bis_jav # Ind. ≥ 10 cm Dom. sp. Rel. dom. (%) 10.3-52.0 B. area (stems ≥ 10cm dbh) 14652 Bis_jav 32 Dry Forest Ridge flat 35 15 Cit_gra 28.8 10.0-67.0 15165 Dys_que 31 Dry Forest Ridge flat 28 13 Dry Forest Ridge flat 28 14 Cit_gra; Psy _sp. Lit_sp. 14 31.07 11.3-86.0 15050 Bis-jav 47 Dys_que 15 23.93 10.0-64.0 9955 Dys_que 32 Dry Forest Ridge flat 21 10 Den_vit Can_sp. 17 13.65 10.0-33.3 3493 Can_sp. 12 Dry Forest Ridge flat 36 17 Lit_sp. Bis_jav 21 27.86 11.0-77.0 18287 Bis_jav 48 Dry Forest Ridge flat 40 25 Syz_mal Dys_sp. 24 19.58 10.0-76.0 11565 Dys_sp. 53 Dry Forest Ridge flat 34 14 Gar_myr Bur_sp. 23 22 10.0-57.0 12037 Bur_sp. 21 Dry Forest Slope 16 8 Cyn_sp. 9 13.6 6.0-34.0 2980 Cyn_sp. 66 Dry Forest Slope 9 6 Cal_vit; Cyn_ sp. Cal_vit Cal_vit 8 18.4 6.0-40.0 2938 Cal_vit 67 Dry Forest Slope 13 10 Cal_vit Mac_see 7 14.3 7.0-25.0 2160 Mac_see 40 Dry Forest Slope 8 7 Cya_lun Cya_lun 4 13.5 7.0-28.0 1346 Cya_lun 36 Dry Forest Slope 13 10 Cya_lun Neo_for 9 24.1 8.0-113.0 12844 Neo_for 76 Dry Forest Slope 27 11 Dys_que 13 40.62 11.0-120.0 28675 Dys_que 63 Dry Forest Slope 34 13 Dys_sp.; Lit_sp.; Den_vit Lit_sp. Dys_que 18 25.6 10.0-64.3 13853 Dys_que 53 Dry Forest Slope 35 10 Lit_sp. Dys_que 16 29.75 10.0-99.0 19330 Dys_que 77 Dry Forest Slope 27 9 Den_vit Dys_len 11 22.18 10.5-67.0 6485 Dys_len 54 Dry Forest Slope 25 11 Den_vit; Lit_sp. Fic_obl 17 26.35 11.3-148.0 23368 Fic_obl 74 Dry Forest Slope 37 14 Den_vit Dys_sp. 20 20.35 10.0-58.0 9582 Dys_sp. 58 Dry Forest Slope 27 13 Lit_sp. Dys_ric 19 25.1 10.0-67.0 12491 Dys_ric 36 Dry Forest Slope 20 14 Lit_sp. Dys_ric 15 24.46 10.6-64.0 10208 Dys_ric 32 Dry Forest Slope 21 10 Lit_sp. Ela_kam 11 18.63 10.4-34..0 3770 Ela_kam 24 Range (cm) 28 Av. dbh(cm) 23.34 Dys_sp. 18 Bis_jav Date Plot # Coordinates T6P10 17.94173, 177.95450 17.95583, 177.96355 17.95568, 177.96365 17.95557, 177.96371 17.95546, 177.96380 17.95532, 177.96381 17.95492, 177.96363 17.95481, 177.96358 17.95334, 177.96445 17.95330, 177.96435 17.95340, 177.96434 17.97304, 177.99869 17.97302, 177.99860 17.97271, 177.99871 17.97259, 177.99869 17.97259, 177.99867 17.97256, 177.99866 17.97272, 177.99877 17.97277, 177.99882 17.97278, 177.99886 17.97304, 177.99870 17.97304, 177.99867 T7P1 T7P2 T7P3 T7P4 T7P5 T7P6 T7P7 T7P8 T7P9 T7P10 July 20 118 2012 T8P1/753 T8P2/750 T8P3/724 T8P4/726 T8P5/728 T8P6/731 T8P7/721 T8P8/719 T8P9/718 T8P10/753 T10P1/733 Principal Vegetation Type Dry Forest Forest/Habitat Type Slope # Ind. ≥ 5cm 23 # Tree spp. 14 Most common spp. Lit_sp. Largest trees Ela_kam # Ind. ≥ 10 cm Dom. sp. Rel. dom. (%) 10.0-33.0 B. area (stems ≥ 10cm dbh) 4547 Ela_kam 18 Upland Rainforest Ridge top 37 26 Cal_vit 22.97 10.1-64.3 15858 Cal_vit 38 Upland Rainforest Ridge top 32 21 21 18.33 10.2-30.7 6138 Cal_vit 35 Upland Rainforest Ridge top 22 Cal_vit 11 17.63 10.0-49.0 3670 Cal_vit 55 Upland Rainforest Ridge top Dac_nid 23 19.14 10.0-41.0 7694 Dac_nid 17 Upland Rainforest Syz_spp. 10 30 12.0-65.0 9058 Syz_spp. 37 Gar_myr. Syz_spp. 10 15.67 5.0-150.0 19772 Aga_mac 87 27 Cal_vit End_mac 18 18.9 10.3-37.0 5938 Bur_sp. 23 34 17 Syz_spp. Dac_nid 19 19.47 10.0-67.0 9115 Dac_nid 48 Ridge top 31 15 Syz_spp. Dac_nid 18 21 10.0-59.0 8550 Dac_nid 63 Upland Rainforest Ridge top 29 18 Syz_spp. 20 17.85 10.0-27.0 5575 Syz_spp. 39 Upland Rainforest Ridge top 20 17 none Syz_spp.; Agl_spp. Cal_vit 12 17.55 7.0-50.0 4107 Cal_vit 28 Upland Rainforest Ridge top 24 17 Gir_cel Dys_sp. 11 15.79 6.0-40.0 1437 Gir_cel 4 Upland Rainforest Ridge top 22 14 Gir_cel Cal_vit 18 20.09 7.0-58.0 11231 Cal_vit 25 Upland Rainforest Ridge top 27 16 Gir_cel Syz_sp. 12 12.93 5.0-27.0 2468 Lit_sp. 4 Upland Rainforest Ridge top 25 15 Syz_sp. Aga_mac 14 20.12 5.0-111.0 16698 Aga_mac 56 Upland Rainforest Ridge top 20 16 Psy_ sp. Cal_vit 16 15.63 7.0-46.0 4655 Cal_vit 34 Upland Rainforest Ridge top 21 16 Lit_sp. Cal_vit 12 14.33 5.0-38.0 3120 Cal_vit 10 Upland Rainforest Ridge top 17 13 Lit_sp. 12 16.11 7.0-30.0 4038 Lit_sp. 36 Upland Rainforest Ridge top 18 14 Lit_sp. Lit_sp;. Fic_smi Lit_sp. 13 15.33 7.0-34.0 3947 Lit_sp. 45 Upland Rainforest Ridge top 18 12 Myr_cas 11 18.94 5.0-75.0 8757 Myr_cas 49 Upland Rainforest Ridge top 53 29 Gir_cel; Lit_sp. Gar_pse Aga_mac 23 13.54 5.0-140.0 23442 Aga_mac 63 Range (cm) 14 Av. dbh(cm) 18.36 Her_oli 29 Cal_vit Cal_vit 16 Gar_myr 40 21 Ridge top 29 16 Cal_vit; Lit_spp. Syz_spp. Upland Rainforest Ridge top 26 17 Upland Rainforest Ridge top 41 Upland Rainforest Ridge top Upland Rainforest Date Plot # Coordinates T10P2/731 17.94980, 177.99630 17.95120, 177.99072 17.95328, 177.00103 17.95050, 177.99830 17.95051, 177.99851 17.95540, 177.96350 17.95530, 177.96342 17.95523, 177.96352 17.95271, 177.96400 17.95267, 177.96400 17.95234, 177.96401 17.95244, 177.96401 17.95254, 177.96401 17.95234, 177.96351 17.97644, 178.0018 17.97345, 177.99920 17.97337, 177.99918 17.97339, 177.99918 17.95030, 177.99750 17.95000, 177.99770 17.95310, 178.00850 17.95300, 178.00840 T10P3/712 T10P4/663 T10P5/728 T10P6/737 T11P1 T11P2 T11P3 T11P4 July 21 2012 T11P5 T11P6 T11P7 119 T11P8 T11P9 T9P1/708 T9P2/707 March 23 2013 T9P3/698 T9P4/699 T10P5/726 T10P6/735 March 23 T12P1/1104 2013 T12P2/1113 Principal Vegetation Type Upland Rainforest Forest/Habitat Type Ridge top # Ind. ≥ 5cm 51 # Tree spp. 21 Most common spp. Syz_sp. Largest trees Aga_mac # Ind. ≥ 10 cm Dom. sp. Rel. dom. (%) 5.0-62.0 B. area (stems ≥ 10cm dbh) 10229 Aga_mac 34 Upland Rainforest Ridge slope 55 24 Syz_sp. 13.4 6.0-152.0 22879 Aga_mac 75 Upland Rainforest Ridge top 54 23 20 14.61 5.0-107.0 16135 Dec_vit 18 Upland Rainforest Flat 30 End_mac 16 15.03 5.0-58.0 95 End_mac 31 Upland Rainforest Flat Gir_cel; Gar_pse Cry_spp. Myr_sp. 11 15.46 5.0-44.0 93 End_mac 34 Upland Rainforest Cal_vit 14 13.49 5.0-65.0 7205 Cal_vit 22 End_mac 18 20.65 5.0-65.0 13351 End_mac 33 19 Cya_lun; Cal_vit None End_spp. 16 19.2 5.0-61.5 10760 End_mac 27 44 25 Cal_vit Aga_mac 22 22.82 10.0-69.0 11958 Aga_mac 31 Slope 44 23 Cya_aff End_mac 21 19.71 10.5-48.0 8103 End_mac 23 Upland Rainforest Slope 34 23 Sau_rub Sem_vit 14 25.5 10.7-47.0 8615 Sem_vit 20 Upland Rainforest Slope 30 18 Dol_lat Deg_vit 10 18.48 10.0-33.0 3051 Deg_vit 27 Upland Rainforest Slope 23 18 None Buc_vit 10 20.1 10.0-63.0 4901 Buc_vit 64 Upland Rainforest Slope 10 8 Gir_cel End_mac 5 14.5 11.0-41.1 2717 End_mac 47 Upland Rainforest Slope 29 19 Gar_myr Gar_myr 11 17.38 5.0-89.0 16348 Gar_myr 48 Upland Rainforest Slope 23 16 Gir_cel Syz_sp. 14 18 7.0-63.0 8953 Syz_sp. 33 Upland Rainforest Slope 22 13 none Cal_vit 15 20.09 7.0-68.0 11541 Par_ins 31 Upland Rainforest Slope 20 14 Lit_ sp. Lit_sp. 14 19.5 6.0-65.0 8776 Lit_sp. 58 Upland Rainforest Slope 25 12 Cya_sp. 17 15.72 5.0-54.0 7129 Cya_sp. 31 Upland Rainforest Slope 40 21 Gar_pse 21 10.8 5.0-32.0 3320 Gar_pse 19 Cloud Rainforest Slope 47 12 Gar_pse; Gir_cel Gir_cel; Myr_sp. Dic_bra Cal_vit 25 10.51 5.0-22.0 4040 Cal_vit 85 Cloud Rainforest Slope 34 11 Cya_sp. Cal_vit 24 12.26 5.0-41.0 4720 Cal_vit 31 Range (cm) 24 Av. dbh(cm) 12.37 Aga_mac 26 Gar-pse Dec_vit 16 Cya_sp. 24 14 Slope 32 20 Upland Rainforest Slope 21 14 Upland Rainforest Slope 23 Upland Rainforest Slope Upland Rainforest Date Plot # Coordinates T12P3/1090 17.95290, 178.00820 17.95260, 178.00770 17.95220, 178.00720 17.95270, 178.00790 17.95210, 178.00700 17.95250, 178.00750 17.95180, 178.00610 17.95150, 178.00580 17.94950, 177.98990 17.98216, 178.00836 17.98215, 178.00835 17.98210, 178.00830 17.98218, 178.00837 17.98209, 78.00830 17.98208, 178.00829 17.98206, 178.00825 17.98200, 178.00820 17.98204, 178.00818 17.98210, 178.00815 17.97558, 178.00117 17.97550, 178.00116 17.97555, 178.00115 T12P4/1068 T12P5/1034 T12P6/1071 T12P7/1035 T12P8/1052 T12P9/1025 T12P10/990 T12P11/1022 T13P1/484 T13P2/482 T13P3/480 120 T13P4/485 T13P5/479 T13P6/478 March 23 2013 T13P7/480 T13P8/481 T13P9/482 T13P10/482 T14P1/614 T14P2/610 T14P3/612 Principal Vegetation Type Cloud Rainforest Forest/Habitat Type Slope # Ind. ≥ 5cm 35 # Tree spp. 14 Most common spp. Cya_sp. Largest trees Cal_vit # Ind. ≥ 10 cm Dom. sp. Rel. dom. (%) 5.0-60.0 B. area (stems ≥ 10cm dbh) 5622 Cal_vit 48 Cloud Rainforest Slope 31 16 Syz_sp. 11.95 5.0-39.0 94 Ast_ sp. 18 Cloud Rainforest Slope 32 12 16 12.94 5.0-34.0 91 Syz_sp. 18 Cloud Rainforest Flat 42 Syz_sp. 23 12.04 5.0-30.0 87 Syz_sp. 35 Cloud Rainforest Flat Mac_see Deg_vit 28 13.7 5.0-43.0 15663 Deg_vit 16 Cloud Rainforest 22 Syz_sp. Cya_ cf. ins 21 12.84 5.0-30.0 87 Cya_ cf. ins 26 30 13 Syz_sp. Cya_sp. 18 11.95 5.0-31.0 4800 Cya_sp. 23 Ridge top 42 19 Cit_ vit Cal_vit 23 13.63 5.0-36.0 5526 Cal_vit 22 Cloud Rainforest Ridge top 70 22 Syz_sp. Syz_sp. 35 5.0-181.0 97 Syz_sp. 82 Lowland Rainforest Ridge top 33 19 Gir_ cel Bur_fij 22 14.67 5.0-49.0 7670 Bur_ fij 23 Lowland Rainforest Ridge top 24 11 Gon_pun 13 13.2 6.0-36.0 3909 Man_flo 23 Lowland Rainforest Ridge top 9 8 Gir_ cel; Vei_vit none Syz_ sp. 6 15.22 5.0-42.0 2432 Syz_sp. 56 Lowland Rainforest Ridge top 17 9 Gar_ myr Cal_vit 7 14.47 5.0-57.0 4825 Cal_vit 49 Lowland Rainforest Ridge top 18 8 Gar_myr Myr_cas 11 22 5.0-74.0 11694 Cal_vit 42 Lowland Rainforest Ridge top 17 10 Gar_ myr Bur_fij 11 16.71 6.0-51.0 5218 Bur_fij 37 Lowland Rainforest Ridge top 24 12 Syz_sp. 14 16.1 5.0-32.0 4926 Syz_sp. 16 Lowland Rainforest Ridge top 24 11 Cal_vit; Gir_cel Fic_smi End_mac 14 22.77 5.0-98.0 16565 End_mac 45 Lowland Rainforest Ridge top 24 7 Gar_myr Syz_sp. 3 8 5.0-15.0 425 Syz_sp. 25 Lowland Rainforest Ridge top 24 14 Gar_myr Cal_vit 17 18 5.0-55.0 10226 Cal_vit 29 Lowland Rainforest Ridge top 39 19 Gar_myr End_mac 17 14.21 5.0-95.0 12100 End_mac 55 Lowland Rainforest Ridge top 36 14 Gar_myr Can_har 18 14.33 5.0-37.0 6551 Can_har 20 Lowland Rainforest Ridge top 28 17 Syz_sp. Syz_sp. 12 14.14 6.0-41.0 5691 Syz_sp. 37 Range (cm) 16 Av. dbh(cm) 11.91 Ast_ sp. 10 Cya_sp. Cya_med 12 Cya_ sp. 54 15 Ridge top 41 Cloud Rainforest Slope-ridge Cloud Rainforest Date Plot # Coordinates T14P4/613 17.97558, 178.00114 17.97557, 178.00119 17.97556, 178.00118 17.97552, 178.00113 17.97549, 178.00109 17.97550, 178.00112 17.97540, 178.00109 17.98268, 178.00916 17.98267, 178.00910 17.98270, 178.00911 17.98265, 178.00915 17.98261, 178.00910 17.98269, 178.00917 17.98259, 178.00911 17.98258, 178.00910 17.98257, 178.00909 17.97644, 178.00183 17.97479, 178.00065 17.97487, 178.00073 17.97491, 178.00079 17.97450, 178.00083 17.97503, 178.00086 T14P5/619 T14P6/614 T14P7/612 T14P8/599 T14P9/595 T14P10/598 T15P1/490 T15P2/489 T15P3/488 T15P4/486 March 23 121 2013 T15P5/492 T15P6/480 T15P7/479 T15P8/478 T15P9/476 T16P1/624 T16P2/623 March 23 2013 T16P3/622 T16P4/621 T16P5/620 T16P6/619 Principal Vegetation Type Lowland Rainforest Forest/Habitat Type Ridge top # Ind. ≥ 5cm 22 # Tree spp. 9 Most common spp. Gar_myr Largest trees Fic_smi # Ind. ≥ 10 cm Dom. sp. Rel. dom. (%) 5.0-25.0 B. area (stems ≥ 10cm dbh) 3380 Gar_myr 69 Lowland Rainforest Ridge top 33 15 Gar_myr 12.72 5.0-40.0 5223 Syz_sp. 22 Lowland Rainforest Ridge top 28 12 13 13.32 6.0-48.0 5563 Cal_vit 42 Lowland Rainforest Ridge top 15 Tur_vit 8 13.93 6.0-43.0 2910 Tur_vit 45 Lowland Rainforest Ridge top Gar_myr Cal_vit 12 15.12 6.0-82.0 11423 Cal_vit 44 Lowland Rainforest 11 Gar_myr Syz_sp. 20 16.34 5.0-62.0 8808 Syz_sp. 38 25 16 Gar_myr Myr_mac 14 12.16 5.0-32.0 3460 Myr_mac 21 Slope 13 9 none Fic_smi 8 14.08 5.0-24.0 114 Gar_myr 1 Lowland Rainforest Slope 11 9 Gar_myr Myr_cas 5 15.09 5.0-50.0 3219 Myr_cas 1 Lowland Rainforest Slope 17 11 Gar_myr Gar_myr 7 10.17 5.0-24.0 415 Gar_myr 19 Lowland Rainforest Slope 12 8 Gar_myr Gar_myr 7 17.5 5.0-52.0 3708 Gar_myr 61 Lowland Rainforest Slope 18 7 Gar_myr Syz_sp. 10 14.72 5.0-35.0 2339 Gar_myr 30 Lowland Rainforest Slope 19 16 none Pal_sp. 9 12.1 5.0-33.0 1836 Pal_sp. 1 Lowland Rainforest Slope 20 11 Gar_myr Myr_cas 13 17.55 5.0-46.0 5636 Myr_cas 47 Lowland Rainforest Slope 13 8 Gar_myr Sto_vit 7 15.08 5.0-78.0 8351 Sto_vit 2 Lowland Rainforest Slope 23 11 Gar_myr 10 12.56 5.0-36.0 1006 Myr_cha 2 Lowland Rainforest Slope 26 14 Gar_myr Pal_ sp. ; Myr_cha End_mac 19 21.81 6.0-100.0 17213 End_mac 45 Lowland Rainforest Slope 15 10 Gar_myr Myr_cas 10 14.8 6.0-28.0 2962 Myr_cas 23 Lowland Rainforest Slope 20 9 Gir_cel Gar_myr 11 11.5 6.0-31.0 2478 Gar_myr 35 Lowland Rainforest Slope 19 12 Gar_myr Xyl_sp. 10 12.79 6.0-25.0 90 Gar_myr 38 Lowland Rainforest Slope 22 11 Gar_myr Bur_fij 15 15.32 5.0-36.0 5050 Bur_fij 19 Lowland Rainforest Slope 26 15 Gar_myr Syz_sp. 17 14.96 6.0-33.0 5526 Syz_sp. 26 Range (cm) 13 Av. dbh(cm) 13.2 Syz_sp. 16 Gar_myr Cal_vit 7 Gar_myr 25 12 Ridge top 29 Lowland Rainforest Ridge top Lowland Rainforest Date Plot # Coordinates T16P7/620 17.97508, 178.00088 17.974836, 178.00069 17.98269, 178.00917 17.95400, 177.99150 17.95281, 177.99173 T16P8/ 618 T2P1/492 March 23 2013 T1P2/657 T1P3/656 Principal Vegetation Type Lowland Rainforest Forest/Habitat Type Slope # Ind. ≥ 5cm 28 # Tree spp. 13 Most common spp. Gar_myr Largest trees Cal_vit # Ind. ≥ 10 cm Dom. sp. Rel. dom. (%) 5.0-40.0 B. area (stems ≥ 10cm dbh) 3985 Cal_vit 29 Lowland Rainforest Slope 21 10 Gar_myr 17.19 5.0-39.0 6494 Cal_vit 18 Lowland Rainforest River flat 15 12 10 18.67 5.0-48.0 5028 Pal_por 14 Lowland Rainforest River flat 33 Dec_vit 15 16.42 5.0-131.0 24156 Dec_vit 86 Lowland Rainforest River flat 28 Deg_vit 20 16.36 5.0-55.0 7417 Deg_vit 30 Range (cm) 13 Av. dbh(cm) 12.32 Cal_vit 13 Gar_myr Pal_por 15 Gar_pse 16 End_gil Keys to abbreviations of acronyms of species used are: 122 Aga_mac=Agathis macrophylla Agl_sp.=Aglaia species Amo_sou=Amoraria soulameoides Ast_sp.=Astronidium species Bac_sp.=Baccaurea species Bis_jav=Bischofia javanica Buc_vit=Buchanania vitiensis Bur_fij=Burckella fijiensis Bur_sp.=Burckella species Cal_vit=Calophyllum vitiense Can_har=Canarium harveyi Can_sp.=Canarium species Cit_gra=Citrus grandis Cit_vit=Citronella vitiensis Cry_sp.=Cryptocarya sp. Cya_aff=Cyathea affinis Cya_lun=Cyathea lunulata Cya_sp.=Cyathea species Cya_c.f. ins=Cyathocalyx cf. insularis Cyn_fal=Cynometra falcata Cyn_sp.=Cynometra species Dac_nid=Dacrydium nidulum Dec_vit=Decussocarpus vitiensis Deg_vit=Degeneria vitiensis Den_har=Dendrocnide harveyi Den_vit=Dendrocnide vitiensis Dic_bra=Dicksonia brackenridgei Dol_lat=Dolicholobium latifolium Dys_len=Dysoxylum lenticellare Dys_que=Dysoxylum quercifolium Dys_sp.=Dysoxylum species Dys_ric=Dysoxylum richii Ela_kam=Elaeocarpus kambi End_gil=Endiandra gillespiei End_sp.=Endiandra species End_mac=Endospermum macrophyllum Fic_obl=Ficus oblique Fic_smi=Ficus smithii Gar_myr= Garcinia myrtifolia Gar_pse=Garcinia pseudoguttifera Gar_sp=Garcinia species Gir_cel=Gironniera celtidifolia Gon_pun=Gonystylus punctatus Hap_flo=Haplolobus floribundus Her_oli=Hernandia olivacea Lit_sp.=Litsea species Mac_see=Macaranga seemannii Mac_sp.=Macaranga species Man_flo=Maniltoa floribunda Man_gra=Maniltoa grandiflora Myr_cha=Myristica chartacea Myr_cas=Myristica castaneifolia Neo_for=Neonauclea forsteri Pal_por=Palaquium porphyreum Pal_sp.=Palaquium species Par_ins=Parinari insularum Pom_pin=Pometia pinnata Psy_sp.=Psychotria species Psy_tur=Psychotria turbinata Sau_rub=Saurauia rubicunda Sem_vit=Semecarpus vitiensis Sto_vit=Storckiella vitiensis Syz_mal=Syzygium malaccense Syz_spp.=Syzygium species Tur_vit=Turrillia vitiensis Vei_vit=Veitchia vitiensis Xyl_sp.=Xylopia species Other acronyms used are: Veg. = Vegetation; #Ind. = number of individuals; com. = common; Av. = Average; dbh = diameter at breast height; B. area = Basal area; Dom. sp. = Dominant species; Rel. dom. = relative dominance Appendix 4. Description of forest and non-forest habitat types Veg. type Lowland Forest type Flat (river flat) Impacts Low Forested Lowland Flat Medium Forested Lowland Ridge Top Low Forested Lowland Ridge Medium Forested Lowland Slope Low Forested Lowland Slope Medium Forested Upland Flat Low Forested Upland Ridge Low 123 Cover Forested Habitat Description and its acronym Primary forest, 75-100% canopy cover, 50-90% ground cover, >90% native flora; general absence of weeds and invasive species; no known history of logging. Farming and/or human habitation may have taken place since time immemorial. LfCF low Transition (secondary and primary) forest; weeds, invasive and secondary succession plants are present; may have history of damage from natural disasters and/or human habitation. LfCF medium Primary forest; 75-100% crown cover with 25-50% ground cover; >90% native flora; general absence of weeds and invasive species; no known history of logging, mine exploration, farming; trees with dbh >35cm are common. LfCR low Transition (secondary and primary) forest; 50-75% canopy and ground cover; high density of succession plants; history of selective logging and natural disaster; overall absence of large trees (dbh >50cm) LfCR medium Primary forest, 75-100% canopy cover, <25-50% ground cover, >90% native flora; no known history of logging, mine exploration, farming; trees with DBH >35cm are common. LfCS low Transition (secondary and primary) forest; 50-75% canopy cover; 75-100% ground cover; some invasive and weeds present and some culturally important species. The forest is regularly visited by the local inhabitants. LfCS medium Assumed to have primary forest; high percentage of native flora. Primary forest, 75-100% canopy cover, 50-75% ground cover with greater diversity of herbs, shrubs and climbers; stems of trees covered with mosses and liverworts; no known history of logging, >98% native flora. Lots of large trees present. Assessment Observed and assessed Present but not observed and assessed. Observed and assessed Present but not assessed Observed and assessed Present but not assessed Not observed on this survey. Observed and assessed Cover Forested Veg. type Upland Forest type Slope Impacts Low 124 Low Habitat Description and its acronym Primary forest; 75-100% crown cover; 25-50% ground cover; stems of trees covered with mosses and liverworts; no known history of logging, >98% native flora. Assumed to have primary forest; high percentage of native flora. Forested Cloud Forest Slope Forested Cloud Forest Forested Assessment Observed and assessed Present but not visited Flat Low Assumed to have primary forest; high percentage of native flora. Present but not visited Cloud Forest Ridge Low Assumed to have primary forest; high percentage of native flora. Present but not visited Forested Dry Forest Riparian Medium Forested Dry Forest Riparian Low Present, observed but not assessed Observed but not assessed Non-forested Talasiga/ grassland Woody shrubland Medium Non-forested Talasiga/ grassland River bank/ riparian High Smaller creeks and streams without associated flood plains; 75-100% crown cover. Mostly restricted to the upper streams/creek and head waters; canopy is closed with lots of bryophytes and filmy ferns on stream banks. General lack of invasive and weedy species. Here a mixture of the grass Pennisetum polystachyon, the reed Miscanthus floridulus and woody shrubs of most secondary succession plants with an occasional clump of the native bamboo Schizostachyum glaucifolium characterises this habitat. These are systems that are dominated by the grass P. polystachyon, the ferns Pteridium spp. and Dicranopteris spp. Trees and shrubs are literally absent except for some that may be found in gullys. Observed but not assessed Observed but not assessed. Appendix 5. Herpetofauna suvey sites locations and sampling methods Site Location (map reference points) Vegetation description Date Ridge above base camp TOVH-15, 19 Ridge forest TOVH-15, 16, 17, 18, 19 Ridge forest TOVH-15, 19 Ridge forest 2 Wainirovurovu Stream Stream and riparian vegetation 3 Mataemalu TOVH- 3, 14 Mataemalu TOVH- 3, 4, 5, 6, 7, 8, 10, 11, 12, 14 Nasa River TOVH- 21, 22 Lowland forest Sampling method Weather Time Span Hours 21/7/2012 Opportunistic visual 100% cloud Rain 22/7/2012 Standard sticky trap 100% cloud Fine 23/7/2012 Standard visual 100% cloud Fine 20/7/2012 Standard nocturnal 100% cloud Fine 23/7/2012 Standard visual 100% cloud Fine 23/7/2012 Standard sticky trap 100% cloud Fine 23/7/2012 Standard nocturnal 10% cloud Fine 0900-1400 5 1150-1330 25.5 1133-1415 2.5 1831-1931 1 0900-1330 4.5 0900-0900 24 1813-2036 2 21/3/2013 Standard nocturnal 1900-2000 1 1800-1930 1.5 1930-2030 1 1230-1430 (next day) 26 Nasa catchment 1 125 4 Lowland forest Inland river bank Waikarakarawa catchment 1 Wainivilekutu Stream and riparian vegetation 2 Waikutukutuvatu Stream and riparian vegetation 3 Waikarakarawa Base Camp Stream and riparian vegetation 4 Waikarakarawa Base Camp Stream bank Mavuvu catchment 100% cloud Fine 23/3/2013 Standard nocturnal 100% cloud Fine 23/3/2013 Standard nocturnal 100% cloud Fine 24/3/2012 Standard sticky trap 30% cloud Fine Site Location (map reference points) Vegetation description 5 Main ridge to Mt. Vonolevu Upland cloud forest 6 Main ridge into Mavuvu catchment Lowland rainforest Date Sampling method Weather Opportunistic visual 100% cloud Rain Opportunistic visual 60% cloud Time Span Hours 1100-1500 4 0730-1230 4 126 Appendix 6. Conservation status of herpetofauna species known from Viti Levu Target endemic and extirpated species (*) and species captured during this survey (†). Scientific name Common name Fijian name (Navosa dialect) Conservation Status Iguanas *Banded iguana Vokai, saumure Viti Levu endemic Critically Endangered Candoia bibronii Pacific boa Gata (qwata) Native Ogmodon vitianus *Fiji burrowing snake Gata/ Bolo Viti Levu endemic Gehyra vorax †Giant forest gecko Moko kabi Native Gehyra oceanica Oceanic gecko Moko kabi Native Lepidodactylus lugubris Mourning or Pacific gecko Moko kabi Introduced Lepidodactylus manni *Mann's Gecko Moko kabi Endemic Nactus pelagicus †Slender toed gecko Moko Native Hemidactylus frenatus House gecko Introduced Hemidactylus garnotti Fox gecko Introduced Brachylophus bulabula Snakes Geckoes Hemiphyllodactylus typus Indopacific tree gecko Native Skinks Emoia nigra *Pacific black skink Moko loa Emoia trossular *Barred tree skink Moko sari Lipinia noctua Moth skink Native, extirpated from Viti Levu Native, extirpated from Viti Levu Native Cryptoblepharus eximus *Pygmy snake-eyed skink Endemic Emoia campbelli *Montane tree skink Endemic Emoia concolor *†Green tree skink Emoia sp. novum? * Emoia impar Blue-tailed copper-striped skink Emoia cyanura Brown-tailed copper-striped skink Moko sari (Boliti) Native Emoia parkeri *†Bronze-headed skink Moko sari Endemic Bufo marinus †Cane toad Boto karokaro Introduced, invasive Platymantis vitiensis *†Fiji tree frog Ula Platymantis vitianus *Fiji ground frog Moko sari Endemic Endemic to Viti Levu Moko sari Native Amphibians Endemic, Near Threatened Ula, Dreli, Botoniviti Endemic, Critically Endangered 127 Appendix 7. Avifauna species checklist, distribution and abundance Common name Status Barking Pigeon Black-face Shrikebill Distribution Endemic VU Abundance (#/ km²) 157 Native 5 Endemic (subspecies endemic to Viti Levu) 51 Endemic 21 Fantail Cuckoo Endemic (subspecies) 13 Fiji bush Warbler Endemic 208 Blued crested Broadbill Collared Lory Fiji Goshawk Cites Appendix II Endemic (subspecies endemic to Viti Levu) 7 Fiji Parrotfinch Endemic 31 Fiji Woodswallow Endemic 9 Giant forest Honeyeater Endemic 125 Golden Dove Endemic 51 Golden Whistler Endemic (subspecies) 36 Native 7 Island Thrush Endemic (subspecies) 52 Lesser Shrikebill Endemic (subspecies) 23 Endemic (subspecies endemic to Viti Levu) 16 Many-coloured fruit Dove Native 5 Orange breasted Myzomela Endemic 87 Pacific black Duck Native 3 Friendly ground Dove Long-legged Warbler Cites Appendix II VU EN Pacific Harrier Cites Appendix II Native 4 Pink-billed Parrotfinch VU Endemic to Viti Levu 4 Polynesian Starling Endemic (subspecies) 5 Polynesian Triller Endemic (subspecies endemic to Viti Levu) 76 Introduced 16 Scarlet Robin Endemic (subspecies) 33 Silvereye Native 33 Slaty Monarch Endemic 28 Streaked Fantail Endemic (subspecies) 52 Yellow-breasted musk parrot Endemic to Viti Levu 56 Vanikoro Broadbill Endemic (subspecies) 39 Wattled Honeyeater Native 77 White-collared Kingfisher Endemic (subspecies) 5 White-rumped Swiftlet Native 12 Red vented Bulbul (exotic, invasive) 128 Common name Status Distribution Abundance (#/ km²) White-throated Pigeon Endemic (subspecies) 1 Fiji White-eye Endemic 251 Samoan flying fox Cites Appendix I Endemic (subspecies) 15 Pacific flying fox Cites Appendix I Native 2 Species likely to be present, but not recorded Eastern Reef heron Native Peregrine falcon AR Native Red throated Lorikeet CR Endemic Barn Owl Native IUCN Red List: CR=Critically endangered; VU=Vulnerable; EN=Endangered. Fiji threat status: AR, at risk 129 Appendix 8. Location of point count stations, habitat and birds recorded Station Longitude Latitude 1 177.93285 17.94032 No. of birds 12 No. of species 6 Vegetation/habitat type Habitat secondary lowland forest riparian 2 177.93155 17.94189 25 12 plantation, garden lowland slope 3 177.93013 17.94394 3 2 secondary lowland forest riparian 4 177.9292 17.94554 16 8 plantation, garden lowland slope 5 177.93074 17.94513 16 7 grassland slope 6 177.93211 17.94672 16 8 grassland ridge slope 7 177.93391 17.94539 9 5 secondary lowland forest ridge top 8 177.93318 17.94334 9 4 secondary lowland forest ridge top 9 177.93517 17.9404 13 6 plantation, garden lowland flat 10 177.93736 17.93911 5 4 secondary lowland forest riparian 11 177.95975 17.94377 12 8 primary lowland forest flat 12 177.95853 17.94216 16 14 primary lowland forest steep slope 13 177.9563 17.9416 12 10 primary lowland forest ridge slope 14 177.94504 17.94159 12 6 primary lowland forest steep slope 15 177.96205 17.94467 15 9 primary lowland forest flat 16 177.96169 17.94676 14 10 primary lowland forest ridge top 17 177.96271 17.94855 11 9 primary lowland forest steep slope 18 177.98424 17.9673 12 7 primary lowland forest riparian 19 177.98227 17.96482 14 7 secondary lowland forest flat 20 177.9807 17.96259 15 9 secondary lowland forest flat 21 177.97766 17.95999 16 11 secondary lowland forest flat 22 177.97585 17.95988 9 5 primary lowland forest steep slope 23 177.97388 17.95921 21 12 primary lowland forest ridge 24 177.97185 17.9572 9 8 primary lowland forest ridge 25 177.96951 17.95697 17 10 primary lowland forest ridge top 26 177.96312 17.94414 14 8 primary lowland forest steep slope 27 177.96538 17.94351 17 8 primary lowland forest ridge 28 177.96793 17.94335 25 14 primary lowland forest ridge 29 177.96785 17.94516 10 8 primary lowland forest ridge slope 30 177.96999 17.94598 10 8 primary lowland forest riparian 31 177.97156 17.94579 13 7 primary lowland forest riparian 32 177.95189 17.94689 10 8 secondary lowland forest riparian 33 177.95375 17.94677 3 2 primary lowland forest slope 34 177.95584 17.94637 11 5 primary lowland forest steep slope 130 Station Longitude Latitude 35 177.9646 17.94497 No. of birds 21 No. of species 10 Vegetation/habitat type Habitat primary lowland forest flat 36 177.96185 17.94283 24 11 primary lowland forest steep slope 37 177.96382 17.95281 23 13 primary lowland forest ridge 38 177.97212 17.96587 7 5 primary lowland forest riparian 39 177.97183 17.96945 11 9 secondary lowland forest riparian 40 177.97214 17.97586 4 3 primary lowland forest slope 41 177.97133 17.97986 13 8 primary lowland forest flat 42 177.97057 17.99098 20 8 primary lowland forest slope 43 177.97188 17.99266 12 8 primary lowland forest ridge slope 44 177.9725 17.99568 15 10 primary lowland forest ridge 45 177.97156 17.97309 6 4 primary lowland forest slope 46 177.97331 17.99778 21 12 primary lowland forest ridge slope 47 177.97435 17.00055 24 11 primary lowland forest ridge 48 177.9769 17.00301 22 14 primary lowland forest ridge 49 177.95966 17.99751 7 5 primary lowland forest riparian 50 177.95729 17.99587 8 5 primary lowland forest slope 51 177.95514 17.99372 8 6 primary lowland forest slope 52 177.95357 17.99063 4 2 primary lowland forest ridge 53 177.9523 17.98797 2 2 primary upland forest ridge 54 177.94458 17.97956 12 8 primary cloud forest ridge slope 55 177.9429 17.97705 8 8 primary upland forest slope 56 177.94034 17.97512 7 6 primary lowland forest slope 57 177.93669 17.97383 7 6 primary lowland forest ridge 58 177.93285 17.97309 17 10 primary lowland forest slope 59 177.92996 17.97395 18 12 secondary lowland forest ridge slope 60 177.99716 17.97207 7 7 primary cloud forest ridge 61 178.00037 17.96806 5 5 primary cloud forest ridge 62 178.0006 17.96531 5 7 primary cloud forest ridge top 63 177.99872 17.9638 8 5 primary cloud forest ridge slope 64 177.99286 17.99286 6 5 primary upland forest ridge 65 177.99152 17.95473 12 8 primary upland forest riparian 66 177.99185 17.95199 5 6 primary upland forest riparian 67 177.9931 17.95256 15 12 primary upland forest flat 68 177.99527 17.9504 11 5 primary upland forest slope 69 177.99924 17.9506 4 14 primary upland forest ridge flat 70 178.00458 17.95373 7 11 primary cloud forest ridge 71 178.00958 17.95391 7 4 secondary cloud forest ridge top 131 Station Longitude Latitude 72 178.00525 17.94992 No. of birds 12 No. of species 6 Vegetation/habitat type Habitat primary cloud forest ridge 73 178.0036 17.94737 10 6 primary cloud forest slope 74 177.99036 17.94921 9 12 primary cloud forest ridge top 75 177.99072 17.95205 8 10 primary upland forest ridge 76 177.98587 17.9674 6 11 primary upland forest slope 77 177.98634 17.96457 10 9 primary upland forest ridge 78 177.98796 17.96216 7 7 primary upland forest ridge 79 177.98918 17.95978 8 12 primary upland forest riparian 80 177.98709 17.96027 11 7 primary upland forest slope 81 177.98814 17.96805 5 8 primary upland forest ridge 82 177.99052 17.96877 9 12 primary upland forest ridge 83 177.99176 17.9706 12 9 primary upland forest ridge slope 84 177.99113 17.97244 5 13 primary upland forest slope 85 177.98918 17.97278 7 6 primary upland forest slope 86 177.98708 17.97298 4 7 primary lowland forest riparian 87 177.98601 17.97147 7 5 primary lowland forest slope 88 177.98538 17.96977 5 6 primary lowland forest slope 89 177.99361 17.9715 8 8 primary upland forest ridge 90 177.99567 17.97143 7 13 primary cloud forest ridge 91 177.99887 17.97315 5 7 primary upland forest ridge 92 178.00041 17.97448 7 8 primary cloud forest ridge 93 178.00175 17.97624 8 9 primary upland forest ridge 94 178.00314 17.97803 4 5 primary lowland forest ridge top 95 178.00414 17.98059 7 7 primary lowland forest slope 96 178.00781 17.98191 6 7 primary lowland forest slope 97* 177.91397 17.96840 >1000 individuals Secondary lowland forest Slope * Location of Pteropus tonganus roost 132 Appendix 9. Focal avifauna species recorded within Emalu Common name Abundance (#/km²) Scientific name Status Black-face Shrikebill Clytorhynchus nigrogularis VU 5 Collared Lory Phigys solitarius simus CITES Appendix II 21 Fiji Goshawk Accipiter rufitorques CITES Appendix II 7 Friendly ground Dove Gallicolumba stairi VU 7 Long-legged Warbler Trichocichla rufa rufa EN 16 Pacific Harrier Circus approximans CITES Appendix II 4 Pink-billed Parrotfinch Erythrura kleinschmidti VU 4 Red-vented Bulbul Pycnotus cafer Invasive* 16 Pteropus samoensis NT, CITES Appendix I 15 Land birds Bats Samoan flying fox Tongan flying fox Pteropus tonganus CITES Appendix I 2 IUCN Red List: NT=Near Threatened; VU=Vulnerable; EN=Endangered. *Exotic invasive, restricted to grassland and open secondary forest habitats 133 Appendix 10. Species checklist of insects and arachnids in the Tovatova catchment 134 Key: * = known endemics ** = endemic and focal species. Order Family Scientific name Coleoptera Anthribidae Cerambycidae Chrysomelidae Corylophidae Curculionidae Elateridae Endomychidae Eucnemidae Languriidae Mordellidae Nitidulidae Passalidae Platypodidae Propalticidae Pselaphidae Salpingidae Scarabaeidae Scolytidae Staphylinidae Tenebrionidae Zopheridae Diptera Drosophilidae Others Hymenoptera Formicidae Ichneumonidae Hemiptera Cicadidae Others Light Traps 1 1 3 3 1 1 13 5 21 4 2 7 11 - Leaf Litter 18 7 20 83 2 6 4 2 5 23 4 46 37 14 139 - Pitfall Traps 4 7 13 26 2 11 4 1 3 50 28 5 1 8 2 Active search - Opportunistic 1 - 135 Key: * = known endemics ** = endemic and focal species. Order Family Scientific name Dermaptera Isoptera Termitidae Tricoptera Lepidoptera Lymantridae Calliteara fidjiensis * Noctuidae Dysgonia koroensis Pallaeocoleus sypnoides Stictoptera vitiensis Speiredonia mutabilis Ericeia inangulata Tricola plagiata Bocana manifestalis Geometridae Cleora perstricta Cleora fowlesi Cleora sp Thallasodes liquenscens Limacodidae Beggina sp* Pyralidae Stemorrhages oceanitis Palpita sp Conogethes punctiferalis Botyodes asialis Lipararchis hyacinthopa Lepidoptera Nymphalidae Hypolimnas inopinata ** Hypolimnas bolina Tirumala hamata Melanitis leda Euploea boisduvalli Hesperiidae Oriens augustula Papilionidae Papilio schmeltzi * Satyridae Xois sesara * Light Traps 1 13 4 16 1 2 2 1 1 2 1 1 1 7 8 6 2 5 1 6 1 - Leaf Litter - Pitfall Traps - Active search 5 1 3 2 4 1 1 8 Opportunistic 3 1 - Key: * = known endemics ** = endemic and focal species. Order Family Scientific name Orthorptera Gryllacrididae Gryllidae Odonata Nesobasis spp. ** Phasmida Phasmatidae Nysirus spinulosus ** Cotylosoma dipneusticum** Arachnidae Opiliones Acari Scorpions Liochelidae Light Traps 18 - Leaf Litter 10 16 46 1 Pitfall Traps 1 5 1 - Active search - Opportunistic 2 19 2 1 1 1 136 Appendix 11. Species checklist of insects and arachnids in the Waikarakarawa catchment Key: * = known endemics ** = endemic and focal species. Order Coleoptera 137 Family Anobidae Anthribidae Brentidae Carabidae Cantharidae Curculionidae Chrysomelidae Elateridae Eucnemidae Lathrididae Nitidulidae Passalidae Platypodidae Pselaphidae Scolytidae Staphylinidae Tenebrionidae Scientific name Leaf Litter 22 8 1 km transect Active search Opportunistic 1 2 2 64 8 1 1 72 39 1 3 1 Blattodea Diptera Hemiptera Hymenoptera Lepidoptera Light Traps 49 296 100 2 1 1 19 Cicadidae Formicidae Lymantridae Geometridae 7 2 259 Calliteara fidjiensis* Cleora diversa Cleora ochricolis Agathia pisina 7 8 1 2 Key: * = known endemics ** = endemic and focal species. Order Family Noctuidae Pyralidae Torticidae Nymphalidae 138 Odonata Agrionidae Scientific name Pyrrhorachis pyrrhogona Petelia aesyla Thallasodes figurata Mecodina variata Sarbissa bostrychonota Palpita vitiensis Cyadalima laticostalis Botyodes asialis Bradina chalcophea Liparachis hyacinthopa Stemorrhages oceantis Light Traps 1 3 4 1 1 1 1 2 2 2 2 2 Leaf Litter 8 7 3 1 4 35 5 Euploea boisduvalii Hypolimnas inopinata** Hypolimnas bolina Tirumala hamata Nesobasis erythrops** Nesobasis angolicollis** Nesobasis heteroneura** Orthoptera Gryllacrididae Gryllidae Tettigonidae Raphidophoridae Phasmatodea Phasmatidae Cotylosoma dipneusticum** Nisyrus spinulosus** Acari Araneae 1 km transect Active search Opportunistic 49 2 1 2 1 3 1 1 2 5 55 1 Key: * = known endemics ** = endemic and focal species. Order Scorpiones Family Scientific name Light Traps Leaf Litter 4 3 Liocheles australasiae Opiliones 1 km transect Active search Opportunistic 36 139 Appendix 12. Species checklist of insects and arachnids in the Mavuvu catchment Key: * = known endemics ** = endemic and focal species. Order Coleoptera Family Anthribidae Curculionidae Chrysomelidae Lathrididae Nitidulidae Pselaphidae Scolytidae Staphylinidae Formicidae Nymphalidae Odonata Agrionidae 140 Hemiptera Hymenoptera Lepidoptera Orthoptera Acari Araneae Opiliones Scientific name Light Traps Leaf Litter 5 46 3 4 10 17 38 15 2 27 1km transect 8 2 4 1 34 58 27 Hypolimnas inopinata** Tirumala hamata Euploea boisduvalii Melanitis leda Nesobasis erythrops** Nesobasis angolicollis** Nesobasis heteroneura** 1 18 10 2 Active search Opportunistic Appendix 13. Species checklist of freshwater fish in the upper Sigatoka River tributaries 141 Site Date Coordinates Method of collection Species Abundance Nakoro, Navitilevu and Draubuta villages 18/07/2012 not recorded Anecdotal (village interviews) NU1: Nasa upstream 1 19/07/2012 17.94593,177.96658 Visual observation Anguilla marmorata Anguilla megastoma Kuhlia rupestris Kuhlia marginata* Oreochromis niloticus* Eleotris fusca* Lamnostoma kampeni* Awaous guamensis* Sicyopterus lagocephalus Sicyopus zosterophorum Nasa stream Upstream from basecamp 20/07/2012 not recorded Opportunistic collection (spear) Anguilla marmorata Anguilla megastoma 7 2 NU2: Nasa upstream 2 22/07/2012 17.94495,177.4431 Beach seine WL: Wainirovurovu lower 23/07/2012 17.94431,177.96056 Beach seine Sicyopterus lagocephalus Sicyopus zosterophorum Anguilla marmorata Sicyopterus lagocephalus 6 2 1 2 WU: Wainirovurovu upper (above waterfall) 23/07/2012 17.94195,177.95972 Beach seine Sicyopterus lagocephalus Anguilla marmorata 9 1 Wainirovurovu stream 24/07/2012 not recorded Opportunistic collection (poison) Anguilla marmorata Anguilla megastoma 39 16 Tributary to Nasa stream, downstream from Navitilevu 26/07/2012 17.95611,177.90222 Visual observation Sicyopterus lagocephalus N/A N/A Site Date Coordinates Method of collection Species WK1: Waikarakarawa stream upstream from base camp 20/03/2013 17.98003,178.01088 Visual observation N/A MV1: Upper Mavuvu upstream from base camp 22/03/2013 17.95007,177.99333 Visual observation Sicyopus zosterophorum Sicyopterus lagocephalus Anguilla marmorata Awaous guamensis Sicyopterus lagocephalus Anguilla marmorata MV2: Lower Mavuvu below waterfall 23/03/2013 17.96912,178.98687 Visual observation Kuhlia rupestris 11 *presence of the species is yet to be verified by means of thorough fishing methods Abundance N/A 142 Appendix 14. Sampling Stations Water quality parametres at freshwater fish sampling stations Date NS2 Nasa stream upstream WL Wainirovurovu lower WU Wainirovurovu upper Waikarakarawa stream (above base camp) Mavuvu upper 22/7/2012 Disolved oxygen (mg/l) 8.95 pH Temperature (°C) 8.05 Conductivity (uS) 0.047 TDS 19.7 Salinity (ppt) 0.02 0.03 Turbidity (NTU) 5.8 Altitude (m) 511 23/7/2012 8.86 7.37 0.084 19.6 0.04 0.053 0 507 23/7/2012 8.77 8.05 0.081 20.2 0.04 0.052 0 556 20/3/2013 8.27 6.88 0.077 21.9 0.03 0.049 0 404 22/3/2013 8.36 6.84 0.066 21.1 0.03 0.042 0 550 Mavuvu mid 23/3/2013 8.60 7.01 0.091 21.4 0.04 0.057 0 459 143 Appendix 15. Catchment, Sampling dates Tovatova catchment, July 2012 Location and descriptions of macroinvertebrate sampling stations River/stream Station Code NU1QT Location coordinates Description Survey type 17. 94477,177.96318 Upstream Quantitative NU1QL 17.94685,177.965850 Upstream Qualitative WRD2QT 17.94431,177.96056 Downstream Quantitative WRU3QT 17.941041,177.960060 Upstream-above waterfall Quantitative WRU3QL 17.942233,177.959156 Upstream-above waterfall Qualitative NWCQL 17.94476,177.96075 Confluence Qualitative Waikarakarawa catchment, Waikarakarawa stream March 2013 WKQT 17.981617,178.009133 650m from 1st campsite Quantitative WKQL 17.979282,178.005956 600m from 1st campsite Qualitative Mavuvu catchment, March 2013 QB1QL 17.948117,177.995467 Upstream Qualitative QB2QL 17.951911,177.991813 200m from 2nd campsite Qualitative QB3QL 17.955224,177.990614 Downstream from campsite Qualitative WSLQT 17.968750,177.984850 WSLQL 17.968750,177.984850 Nasa Creek Wainirovurovu Stream (tributary) Nasa-Wainirovurovu Confluence 144 Qalibovitu stream (Upper Mavuvu) Wainasoba stream (Mid Mavuvu) Quantitative Tributary of Mid Mavuvu River Qualitative The four/five letter site codes are composed from the initials of the stream/creek, the station and the type of sampling, for example QB1QL indicates a station sampled in Qalibovitu stream (QB) at station 1 using Qualitative (QL) sampling technique. Appendix 16. stations Physiochemical parameters of macroinvertebrate sampling Station code Temperature (oC) pH Conductivity (mS/cm) TDS (g/l) NU1QT 19.7 8.05 0.047 0.030 5.8 8.95 0.02 WRD2QT 19.6 7.37 0.084 0.053 0 8.86 0.04 WRU3QT 20.2 8.05 0.081 0.052 0 8.77 0.04 WKQT 21.9 6.88 0.077 0.049 0 8.27 0.03 WSLQT 21.8 6.94 0.085 0.055 0 8.41 0.04 QB1QL 21.2 6.56 0.065 0.041 0 8.31 0.03 145 Turbidity Dissolved Salinity (NTU) O2 (g/m3) (ppt) Appendix 17. Habitat and riparian characteristics of macroinvertebrate sampling stations Station Channel characteristics Width Depth Velocity Pool (m) (m) (m/s) (%) Habitat type Run Riffle (%) (%) NU1QT 3-5.6 0.22-2.4 0.30 5 70 20 5 - 10 <1 native trees and well vegetated, gravel, shrubs, 60% sandy & highly stable WRD2QT 2-5 0.14-0.8 0.40 20 20 10 40 - 10 - native trees and well vegetated, stony, shrubs, 95% sandy & highly stable WRU3QT 2.5-4 0.1-1.5 0.50 20 40 20 20 <1 40 <1 native trees and well vegetated, stony & shrubs, 20% highly stable WKQT 4-6 0.10-1 0.32 20 30 30 20 <1 20 - well vegetated, native trees and rootmass, gravel, sandy shrubs, 60% & highly stable WSLQT 1.2-8 0.10-0.85 0.35 10 50 20 20 - 30 - native trees and well vegetated, stony & shrubs, 90% highly stable <1 Native trees and native trees and shrubs, well vegetated, shrubs, 90% stony, rootmass & highly stable Chute (%) Organic matter Riparian characteristics, Logs Leaves Branches % shade (%) (%) (%) 146 QB1QL 1.5-3 0.23-0.82 0.8 5 20 70 5 <1 30 Bank characteristics Appendix 18. Abundance of freshwater macroinvertebrates collected with Surber sampling Key to abundance categories: Group ■very abundant (>100), ■abundant (20-99), ■common (5-19), ■few (2-4), ■very few (1) Order/class/family Taxa Distribution Common name Station NU1QT Insecta Ephemeroptera Trichoptera 147 Lepidoptera Diptera Cloeon sp. Pseudocloeon sp. Cloeodes sp. Abacaria fijiana Abacaria ruficeps Anisocentropus fijianus Goera fijiana Hydrobiosis spp. Odontoceridae spp. Chimarra sp. Rhyacophilidae spp. Hydroptilidae sp. Nymphula sp. Unknown species Chironomus sp. Chironominae sp. A Chironominae sp. B Tanypodinae sp. Culicidae sp. Dixidae sp. Psychodidae sp. Simulium jolli Simulium sp. B Tipula sp. Tipulidae sp. B Endemic/Native Endemic/Native Endemic/Native Endemic Endemic Endemic Endemic Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Introduced,tropics Endemic/Native Endemic/Native Endemic Endemic/Native Endemic/Native Endemic/Native Mayfly Mayfly Mayfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Moth Midge Midge Midge Midge Mosquitoes Dixid midges Moth Fly Black fly Black fly Crane fly Crane fly 27 1050 17 700 67 10 30 73 167 348 88 30 23 333 17 10 17 20 443 10 33 - WRD2QT WRU3QT WKQT 23 390 1163 93 3 33 57 30 153 20 17 300 10 7 3 20 13 3 390 27 - 7 433 17 1177 210 3 70 13 22 43 40 217 347 3 130 3 40 57 7 7 3 3 6 1413 87 23 80 77 20 53 67 167 13 3 MVLQT 7 500 1367 103 7 100 383 220 97 40 100 7 57 10 - Key to abundance categories: Group ■very abundant (>100), ■abundant (20-99), ■common (5-19), ■few (2-4), ■very few (1) Order/class/family Taxa Distribution Common name Station NU1QT Odonata Hemiptera Coleoptera 148 Orthoptera Arachnida Araneae Annelida Oligochaeta Nereidae Nematoda Mollusca Gastropoda Total abundance Number of taxa Empididae sp. Muscidae sp. Nesobasis sp. A Vellidae sp. Hydraenidae sp. Ptilodactylidae sp. Dytiscidae sp. Scirtidae sp. Hydrophilidae sp. Dineutus sp. Nemobiinae sp. Species 1 Oligochaeta spp. Nereid sp. Species 1 Species 2 Fluviopupa spp. Melanoides tuberculata Native (Indo-Pacific) Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Native (Pacific) Native (Indo-Pacific) Unknown Native (Indo-Pacific) Endemic/Native Endemic/Native Endemic/Native Endemic/Native Introduced, tropics Lacewing fly Damselfly Water bug feather-winged beetles diving beetles marsh beetles water scavenger beetles Whirligig beetles Water cricket Water spider Worm Snail Snail 20 3 20 7 17 3 3 97 3 3686 30 WRD2QT WRU3QT WKQT 10 7 3 3 3 10 7 3 2801 28 27 3 7 3 10 7 7 23 2939 30 7 7 13 13 2049 16 MVLQT 3 3 3 1 7 177 3192 20 Appendix 19. Abundance of freshwater macroinvertebrates collected opportunistically Taxa 149 Cloeon sp. A Cloeon sp. B Pseudocloeon sp. A Pseudocloeon sp. B Pseudocloeon sp. C Pseudocloeon sp. D Pseudocloeon spp. Apsilochorema sp. 1 (“greenish”) Apsilochorema sp. 2 (“pinkish”) Hydrobiosis sp. 1 (“green”) Hydrobiosis sp. 2 (“pinkish”) Anisocentropus fijianus Odontoceridae spp. Abacaria fijiana Abacaria ruficeps Chimarra sp. Oxyethira sp. Goera fijiana Trianodes fijiana Nymphula sp. Nesobasis sp. 1 (“dark green”) Nesobasis sp. 2 (“orangish”) Nesobasis sp. 3 (“light brown”) Nesobasis sp. 4 (“dark brown”) End./Nat./Intr. Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic Endemic Endemic/Native Endemic/Native Endemic Endemic Endemic/Native Endemic/Native Endemic/Native Endemic/Native. Endemic/Native Stations Common name Mayfly Mayfly Mayfly Mayfly Mayfly Mayfly Mayfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Caddisfly Moth Damselfly Damselfly Damselfly Damselfly NU1QL WRUQL3 NWCQL WKQL MVLQL QBUQL1 2 5 - 1 1 1 1 1 1 2 2 1 12 20 100 38 4 4 5 28 25 19 6 1 - 2 20 30 60 46 3 2 1 14 128 3 1 10 - 3 36 22 242 2 5 41 24 2 3 1 4 1 1 1 1 1 - 3 3 4 2 - QBUQL2 QBUQL3 9 2 2 24 1 20 10 - Taxa 150 Hemicordulia sp. Procordulia sp. Tipula sp. Tipulidae sp. B Simulium jolli Empididae sp. Chironomus sp. Corixidae sp. Lymnogonus sp. Hydraenidae sp. Dineutus sp. Unknown species Unknown species Macrobrachium latimanus Macrobrachium lar Caridina sp. A Caridina sp. B Caridina sp. C Caridina sp. D Caridina sp. E Caridina sp. F Antecaridina sp. Atyoida pilipes Unknown species Fluviopupa sp. End./Nat./Intr. Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic Endemic/Native Endemic/Native Endemic/Native Endemic/Native Endemic/Native Native (Pacific) Endemic/Native Endemic/Native Native (Indo-Pacific) Native (Indo-Pacific) unknown unknown unknown unknown unknown unknown Native (Indo-Pacific) Native (Indo-Pacific) unknown Endemic/Native Stations Common name Dragonfly Dragonfly Cranefly Cranefly Blackfly Dagger fly Midge Water bug Water-strider Featherwinged beetle Whirligig beetle Beetle Diving beetle Prawn Prawn Shrimp Shrimp Shrimp Shrimp Shrimp Shrimp Shrimp Shrimp Amphipod Snail NU1QL WRUQL3 NWCQL WKQL MVLQL QBUQL1 1 1 1 31 1 2 - 1 1 - 2 1 15 1 34 3 2 1 3 1 32 4 2 1 48 3 1 2 4 1 2 4 2 101 13 1 5 4 1 145 QBUQL2 QBUQL3 4 1 3 1 41 2 3 1 1 1 80 25 Taxa Melanoides tuberculata Physastra nasuta Oligochaeta sp. Tricladida sp. Total abundance Number of taxa End./Nat./Intr. Introduced Native (Pacific) Native (Indo-Pacific) Endemic/Native Stations Common name Snail Snail Freshwater worm Flatworm NU1QL WRUQL3 NWCQL WKQL MVLQL QBUQL1 41 6 14 13 6 4 2 1 358 24 1 1 402 27 4 2 5 659 21 QBUQL2 QBUQL3 206 18 25 1 151 Appendix 20. Checklist of invasive and potentially invasive animals Scientific Name Common Name, Fijian Name Abundance Mus musculus* House mouse, kucuve, kalavo Uncommon Rattus exulans* Pacific rat, kucuve, kalavo Uncommon Rattus rattus Black rat, ship rat, kucuve, kalavo Rare Rattus norvegicus* Norway rat, kucuve, kalavo Uncommon Felis catus Feral cat, vusi, pusi Rare Sus scrofa Feral pig, vuaka, vore Common Bufo marinus Cane toad, boto Common Herpestes fuscus** Indian brown mongoose, manivusi Rare Herpestes auropunctatus** Small Indian mongoose, manivusi Locally common Pycnonotus cafer Bulbul, ulurua Uncommon Equus caballus Horse, ohe, ose Common * Not directly observed but anecdotal evidence strongly indicates presence in village ** Presence of mongooses is confirmed but not which of the two possible species 152 Appendix 21. Transect Locations of rodent transects in Tovatova catchment Number of Trap traps nights Location Transect coordinates 1 34 traps (17 pairs) 1 From Tovatova base camp towards the ridge Start: -17.943719°, 177.961474° End: -17.943656°, 177.959597° 2 30 traps (15 pairs) 1 Uphill track from Tovatova base camp to Mavuvu Creek Start: -17.943632°, 177.961495° End: -17.944801°, 177.962060° 3 24 traps (12 pairs) 1 In and around the Tovatova base camp Start: -17.943683°, 177.961511° End: -17.943366°, 177.962837° Appendix 22. Record of pigs (Sus scrofa) caught Date Gender and age 11/07/2012 Juvenile male 12/07/2012 Juvenile male 14/07/2012 Large pregnant female 15/07/2012 undetermined * 20/07/2012 Juvenile male 20/07/2012 undetermined * * Eaten by dogs before determination could be made of gender and age 153 Appendix 23. Checklist of invasive and potentially invasive plants 154 Family Scientific Name Common name, (Fijian) Habitat Abundance 1. Agavaceae Dracaena fragrans Vasili ni vavalagi Found in secondary forest Rare 2. Asteraceae Crassocephalum crepidioides thick head Observed in abandoned plantations. Uncommon 3. Asteraceae Mikania micrantha mile-a-minute, wabosucu Abandoned farms. Uncommon 4. Asteraceae Tridax procumbens coat buttons, tabu keka Uncommon 5. Bignoniaceae Spathodea campanulata African tulip, pasi Can be seen growing on village green in Navitilevu and Nakoro Village and also on abandoned plantations. Two trees in the Nasa catchment, one in Waikarakarawa 6. Malvaceae Sida rhombifolia Broomweed Uncommon 7. Myrtaceae Psidium guajava guava, quawa Common around horse tracks, grazing areas, former plantation areas. Commonly found in paddocks. 8. Fabaceae Derris malaccensis Derris, duva, tuva Very common near streams smothering the vegetation. Common 9. Fabaceae Samanea saman Leucaena leucocephala Large stands can be seen growing along the river from Nakoro to Navitilevu village Observed along grazing areas and paddocks. Common 10. Fabaceae rain tree, monkeypod, Vaivai ni valagi vaivai ni vavalgi 11. Lamiaceae Hyptis pectinata tamoli ni vavalagi Found in abandoned plantations and along creek-bed. Uncommon 12. Lythraceae Cuphea carthagenensis tar weed Observed along main track. Uncommon 13. Melastomataceae Clidemia hirta Common through all forest types visited 14. Melastomataceae Dissotis rotundifolia Koster’s curse, karausiga, vuti pink lady Very common Common Stream banks in disturbed areas Rare Common Common Family Scientific Name Common name, (Fijian) Habitat Abundance 15. Poaceae Arundo donax Giant reed, gasau ni valagi Along creeks and streams Uncommon 16. Poaceae Bambusa vulgaris bitu ni vavalagi Rare 17. Poaceae Imperata cylindrica 18. Poaceae Pennisetum polystachyon 19. Piperaceae Piper aduncum mission grass, co manivusi Yaqoyaqona 20. Solanaceae Brugmansia sp. 21. Verbenaceae 155 Open areas and in grassland Uncommon Dominant species in grasslands. Common Common Angel’s trumpet Large monotypic stand found along the boundary of Emalu Forest and within disturbed areas within the Emalu Forest. Found along creeks and streams. Lantana camara lantana, lanitana Observed near grazing areas. Uncommon 22. Solanaceae Solanum torvum Kosipeli Uncommon 23. Zingiberaceae Alpinia purpurata Boia Favourite food for pigeons, found in abandoned plantations and fallow areas. Along creeks 24. Zingiberaceae Curcuma longa tumeric, cago Grassland and abandoned plantations. Common 25. Zingiberaceae Hedychium coronarium White ginger, jija Along creeks and streams bank. Uncommon 26. Zingiberaceae Zingiber zerumbet Lalaya Locally common on some ridge-top Uncommon Common Uncommon Appendix 24. Summary descriptions and locations of cultural heritage sites Note: Lowland and upland vegetation zones refer to those below and above 650m, respectively. Site Code Site type Site evidence 156 M28-0001 M28-0002 M28-0003 M28-0004 M28-0005 M28-0006 M28-0007 M28-0008 M28-0009 M28-0010 M28-0011 M28-0012 M28-0013 M28-0014 M28-0015 M28-0016 M28-0017 M28-0018 M28-0019 M28-0020 M28-0021 M28-0022 M28-0023 M28-0024 M28-0025 M28-0026 M28-0027 M28-0028 Old village site Traditional land boundary Sacred Pool House mound House mound Ditch Agricultural terrace Old village site Old village site Old village site Hill fortification Old village site Agricultural terrace Old village site Agricultural terrace Sacred Pool Hill fortification Hill fortification Old village site Old village site Pottery site Old village site Hill fortification Old village site Old village site Old village site Hill fortification House mound House mounds Rock feature Pool Highly raised mound House mound Causeway, ditch feature Terrace platforms, pottery sherds House mounds, pottery sherds House mounds, pottery sherds House mounds, terrace platforms, pottery sherds House mounds, terrace platforms House mounds, pottery sherds, metallic pot Terrace platforms House mounds, pottery sherds Terrace platforms Natural pool (Tobu ni Nanai) Causeway, defensive ditch, house mound House mound, defensive ditch House mounds, pottery sherds House mound, pottery sherds, terrace platforms Pottery sherds Pottery sherds House mounds, pottery sherds House mounds, terrace platforms Terrace platform, pottery sherds, stone alignment feature House mounds, pottery sherds House mounds, pottery sherds House mound Vegetation zone Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Upland Upland Lowland Lowland Upland Upland Upland Lowland Lowland Lowland Upland Lowland Site coordinates 17.955722, 177.913025 17.95156, 177.927147 17.951434, 177.927296 17.946785, 177.925627 17.947028, 177.932636 17.945145, 177.933914 17.94184, 177.94267 17.94132, 177.94766 17.94554, 177.953848 17.953684, 177.947787 17.953714, 177.948715 17.957585, 177.94673 17.943933, 177.960069 17.943989, 177.961356 17.945014, 177.959152 17.945415, 177.959916 17.956124, 177.96347 17.957459, 177.966507 17.945685, 177.964307 17.943541, 177.96696 17.941519, 177.968532 17.942736, 177.96926 17.956789, 177.971649 17.942156, 177.972743 17.941205, 177.973868 17.942908, 177.959728 17.936667, 177.970696 17.94112, 177.957129 Date recorded 24/07/12 25/07/12 25/07/12 18/07/12 18/07/12 18/07/12 18/07/12 19/07/12 21/07/12 21/07/12 21/07/12 21/07/12 19/07/12 18/07/12 21/07/12 21/07/12 20/07/12 20/07/12 22/07/12 22/07/12 22/07/12 22/07/12 20/07/12 23/07/12 23/07/12 19/07/12 22/07/12 19/07/12 Note: Lowland and upland vegetation zones refer to those below and above 650m, respectively. Site Code Site type Site evidence 157 M28-0029 M28-0030 M28-0031 M28-0032 M28-0033 M28-0034 M28-0035 M28-0036 M28-0037 M28-0038 M28-0039 M28-0040 M28-0041 M28-0042 M28-0043 M28-0044 M28-0045 M28-0046 M28-0047 M28-0048 M28-0049 M28-0050 M28-0051 M28-0052 M28-0053 M28-0054 M28-0055 M28-0056 M28-0057 M28-0058 Ditch Platform Platform Ditch House mound House mound House mound House mound Platform Platform House mound House mound Agricultural terrace House mound Platform House mound Agricultural terrace Hill fortification Agricultural terrace Platform House mound Stone alignment House mound Hill fortification House mound House mound Old village site Habitational terrace House mound House mound Raised flat platform Flat terrace Flat terrace Trench House foundation, fire place, indicator plants House foundation House foundation Flat terrace,stone alignment,house foundations Flat terrace Flat terrace, house foundation House foundation House foundation Series of terraces House foundation Raised flat House foundation, indicator plants and trees Series of terraces Circular ditches, causeways Series of terraces Raised flat House foundation, indictor plant Stone wall House foundation Platform, trench, causeways, indicator plants House foundation, stone alignment House foundation House mounds, platforms, indicator plants, Flat platform House mound House foundation Vegetation zone Lowland Lowland Lowland Lowland Lowland Upland Upland Upland Upland Upland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Upland Lowland Lowland Lowland Lowland Upland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Site coordinates 17.9880039,178.008375 17.989214, 178.005662 17.989222, 178.004928 17.990073, 178.003454 17.991264, 178.001543 17.991658, 178.000810 17.990698, 177.998185 17.988996, 177.995172 17.987994, 177.994121 17.987405, 177.993662 17.980532, 178.003924 17.982715, 178.009278 17.984366, 178.011242 17.982227, 178.006033 17.982030, 178.006467 17.981805, 178.007046 17.982740, 178.011033 17.988327, 177.994194 17.983373, 177.006021 17.982922, 178.005426 17.982736, 178.005193 17.981549, 178.003506 17.982559, 177.991147 17.984130, 177.986690 17.984486, 177.985674 17.984322, 177.986048 17.984255, 177.984087 17.985933, 177.979203 17.986574, 177.971813 17.986849, 177.971249 Date recorded 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 20/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 Note: Lowland and upland vegetation zones refer to those below and above 650m, respectively. Site Code Site type Site evidence 158 M28-0059 M28-0060 M28-0061 M28-0062 M28-0063 M28-0064 M28-0065 M28-0066 M28-0067 M28-0068 M28-0069 M28-0070 M28-0071 M28-0072 M28-0073 M28-0074 M28-0075 M28-0076 M28-0077 Old village site House mound House mound Agricultural terrace House mound Agricultural terrace Old village site Hill fortification Habitational platform Hill fortification Hill fortification Hill fortification Old village site Hill fortification House mound House mound House mound House mound Platform House foundations, raised stone wall, stone alignment for initiation House foundation House foundation Series of terraces House foundations,indicator plants Series of terraces House foundations, pottery sherds, stone alignment House foundations, fortification trench, fortification stone wall Flat terraces,house mounds,indicator plants Platforms,house mounds,trenches Stone wall alignment,house foundations, indicator plants, rock shelter House mounds,fortification trench,stone alignment House foundations,indicator plants,pottery sherds Fortification trenches,house foundations,indicator plants, pottery sherds House foundation,standing stones House foundations House foundations House foundations Flat terraces,pottery sherds Vegetation zone Lowland Lowland Lowland Lowland Lowland Lowland Lowland Upland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Lowland Site coordinates 17.997551, 177.962255 17.987036, 177.970733 17.987265, 177.970283 17.988284, 177.968851 17.989261, 177.969247 17.995930, 177.965134 17.985088, 177.975448 17.993331, 177.980870 17.989834, 177.979605 18.001788, 177.964786 17.990722, 177.968911 17.985345, 177.970595 17.975304, 177.977471 17.9698685,177.982617 17.965324, 177.985803 17.963856, 177.986926 17.961816, 177.988338 17.960967, 177.987922 17.973944, 178.004944 Date recorded 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 21/03/13 22/03/13 22/03/13 22/03/13 23/03/13 23/03/13 24/03/13 24/03/13 24/03/13 24/03/13 24/03/13 24/03/13 24/03/13 24/03/13 REFERENCES 1940. 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