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2000
Fiddler crabs (Ocypodidae, Uca) are a well known group of small, intertidal Brachyuran crabs, characterized by strong sexual dimorphism and male asymmetry. Male fiddler crabs exhibit one of the most extreme levels of body asymmetry of any organism, having a large major claw containing a third to half of the animal's body mass and a small minor claw. The morphology of major and minor claws varies tremendously across species.
2001 •
Although fiddler crabs (genus Uca) have been among the most widely studied organisms with respect to sexual selection, agonistic behavior, asymmetry, and visual and acoustic signaling, the phylogenetic relationships within the genus have remained largely a mystery.
2002 •
Interest in morphological variation has long been a driving force behind many biological studies. Understanding the nature of, and searching for an explanation for, this variety is a major research focus, including fields as diverse as functional morphology, macroevolution, sexual selection, and evolutionary developmental biology.
Journal of Experimental Marine Biology and Ecology
Functional differences between the major and minor claws of fiddler crabs (Uca, family Ocypodidae, Order Decapoda, Subphylum Crustacea): A result of selection or developmental constraint?1995 •
2014 •
Fiddler crabs are true crabs in the infraorder Brachyura. The Brachyura are the most advanced of the decapods. The crab body is generally short, wide, and flat, and is characterized by a reduced abdomen that lacks a tail fan and is flexed under the body. In all but a few small groups, all 5 pairs of walking legs are large and the first pair is always claws. The majority of brachyuran species pass through a number of planktonic larval stages, with the megalopal stage being the last larval stage before settlement to the crab form. The megalopa stage resembles the adult; however, the abdomen has yet to fold under the body. Fiddler crabs are in the family Ocypodidae that is characterized by eyes that are set close together at the end of long eye stalks.
2009 •
The fiddler crabs Uca panacea Novak & Salmon, 1974 and Uca pugilator (Bosc, 1802) are closely related North American species that are sympatric along the north coast of Gulf of Mexico. Since U. panacea was described, there has been confusion in the identification these two species. Morphological differences between these two fiddlers have been pointed out in recent years, mainly regarding the presence of a pigment spot and granulations on the dorsal margin of carapace in U. pugilator. We report herein some intraspecific differences between the two species that we believe to be useful in avoiding misidentification among preserved specimens of these two fiddler crabs, such as the absence of the pigment spot in U. pugilator and the presence of the pigment spot and granulations on dorsal margin of carapace in U. panacea as well. Our results have also revealed that 65% of the U. pugilator specimens examined possess a gape pile in the major chela, which is not a reliable diagnostic character, but could be useful when present. The gonopods of both species were analyzed using SEM, confirming the previous statement that the sub-terminal thumb is shorter in U. panacea than in U. pugilator. Finally, as important morphological characters are missing in the original description of U. panacea, a redescription of this species is also provided.
Academia Letters
Commentary on: Shell use by juvenile fiddler crabs Uca pugnax and Uca pugilator by George, Carlson and Regassa2021 •
Evolutionary Ecology of Social and Sexual Systems
Predation and the Reproductive Behavior of Fiddler Crabs (Genus Uca)2007 •
Latin American Journal of Aquatic Research
Redescription of the fiddler crab Uca spinicarpa Rathbun, 1900 (Decapoda: Ocypodidae2010 •
Making Ancient Cities: Space and Place in Early Urban Societies. Edited by Andrew T. Creekmore III and Kevin D. Fisher. Cambridge University Press
Chapter 8: The rise of a Minoan city and the (re)structuring of its hinterlands: a view from Galatas2014 •
Restauro dell’architettura. Per un progetto di qualità, 3. Conoscenza per il progetto
La ricerca per il progetto di restauro: linee guida per le superfici e approcci relazionali per l’architettura storica2023 •
2014 •
2010 •
Clinical Nephrology
Arterial stiffness and kidney disease progression in the systolic blood pressure intervention trial2020 •
Journal of Forensic Sciences
Preclinical Assessment of Safety and Efficacy of Fluorescent Dye for Detecting Dermal Injuries (the injuries were both abrasions and incision) in a Murine Model2016 •
IEEE Transactions on Applied Superconductivity
AC Loss Calculation on a 6.5 MVA/25 kV HTS Traction Transformer With Hybrid Winding Structure2020 •
Forensic Science International
Erratum to ‘Estimation of sex from cranial measurements in a Western Australian population’ [Forensic Sci. Int. 229 (2013) 158.e1–158.e8]2013 •
International Journal of Rock Mechanics and Mining Sciences
Effect of technological macro voids on the performance of compacted bentonite/sand seals for deep geological repositories2016 •
2007 •
Developmental & Comparative Immunology
Involvement of protein kinase C signalling and mitogen-activated protein kinase in the amebocyte-producing organ of Biomphalaria glabrata (Mollusca)2009 •
Інвестиції: практика та досвід
Розвиток форм фінансування житлового будівництва в Україні2017 •
Journal of Applied Meteorology and Climatology
The GEWEX Water Vapor Assessment: Results from Intercomparison, Trend, and Homogeneity Analysis of Total Column Water Vapor2016 •