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The prevalence of male right handedness in the indo west pacific fiddler crabs uca vocans and uca tetragonon decapoda ocypodidae






Journal of Crustacean Biology 2(1): 70-83

The prevalence of male right handedness in the indo west pacific fiddler crabs uca vocans and uca tetragonon decapoda ocypodidae

Right-handedness of the major cheliped was found in 97.3% of 2784 male specimens of U. vocans from collections of the National Museum of Natural History (USA National Museum) and the 1979 RV ALPHA HELIX expeditions to the western Pacific. A comparable figure of 96.8% right-handedness was obtained for 281 specimens of the rarer U. tetragonon. Since the collections span the known geographical ranges of both species, it would appear that a strong bias for right-handedness is a universal trait for each. The 2 spp. are thus an exception to the right-left equality of handedness previously thought to prevail for the genus. Recently published studies provide possible clues to the mechanism for the determination of right handedness and its functional significance.


Accession: 006740429



Related references

Barnwell, FH., 1982: The prevalence of male right-handedness in the Indo-west Pacific fiddler crabs Uca vocans (Linnaeus) and U. tetragonon (Herbst) (Decapoda: Ocypodidae). Right-handedness of the major cheliped was found in 97.3% of 2784 male specimens of U. vocans from collections of the National Museum of Natural History (USA National Museum) and the 1979 RV ALPHA HELIX expeditions to the western Pacific. A compar...

Naderloo, R.; Tuerkay, M.; Chen, H.-Lian, 2010: Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group Crustacea Decapoda Brachyura Ocypodidae in the Indo-West Pacific. The Indo-West Pacific broad-front fiddler crabs, formerly attributed to the "lactea species-group" are revised. The subgenus Uca (Austruca) Bott, 1973, is here revived for accommodating the informal "lactea species-group". Uca(...

Takeda, S.; Poovachiranon, S.; Murai, M., 2004: Adaptations for feeding on rock surfaces and sandy sediment by the fiddler crabs (Brachyura: Ocypodidae) Uca tetragonon (Herbst, 1790) and Uca vocans (Linnaeus, 1758). Two species of fiddler crab, Uca tetragonon (Herbst, 1790) and Uca vocans (Linnaeus, 1758), which belong to the subgenus Gelasimus, dwell on rocky shores and muddy-sandy tidal flats, respectively, in Phuket Is., Thailand. We investigated their fee...

Ho, P.H.; Wang, C.H.iang; Lin, J.T.ong; Yu, H.P.ng, 1993: First record of the fiddler crab Uca tetragonon Crustacea Decapoda Ocypodidae from Taiwan, with notes on its handedness. A fiddler crab, namely Uca tetragonon (Herbst, 1790) is recorded from Taiwan for the first time. Systematic account, handedness, line drawings and color illustrations are included.

Ho, P.-Ho.; Wang, C.-Hsiang.; Lin, J.-Tsong.; Yu, H.-Ping., 1993: First record of the fiddler crab Uca tetragonon (Herbst, 1790) (Crustacea: Decapoda: Ocypodidae) from Taiwan, with notes on its handedness. A fiddler crab, namely Uca tetragonon (Herbst, 1790) is recorded from Taiwan for the first time. Systematic account, handedness, line drawings and color illustrations are included.

Nakasone, Y., 1982: Ecology of the fiddler crab uca vocans vocans decapoda ocypodidae 1. daily activity in warm and cold seasons. Field observations on the behavior of Uca (Thalassuca) v. vocans were made in the estuary of the Okukubi River, Okinawa Island [Japan]. The formation of the feeding aggregation of wandering individuals or groups was found in warm seasons above an...

Nakasone, Y.; Akamine, H-a.; Asato, K., 1983: Ecology of the fiddler crab Uca vocans vocans (Linnaeus) (Decapoda: Ocypodidae). 2. Relation between the mating system and the drove. Galaxea, 22: 119-133

Jones, DS.; George, RW., 1982: Handedness in fiddler crabs as an aid in taxonomic grouping of the genus Uca (Decapoda; Ocypodidae). Crustaceana (Leiden): 431: 100-102

Nakasone, Y., 1982: Ecology of the fiddler crab Uca (Thalassuca) vocans vocans (Linnaeus) (Decapoda: Ocypodidae) 1. Daily activity in warm and cold seasons. Researches on Population Ecology (Kyoto): 241: 97-109

Williams, MJ.; Poon Kum Heng., 1981: Handedness in males of Uca vocans (Linnaeus 1758) (Decapoda, Ocypodidae). Crustaceana (Leiden): 402: 215-216