1. 1. An ecological and behavioural study was made of the five Uca species of Inhaca Island. 2. 2. In addition to the claw-waving shown by males as a threat-display or as part of courtship behaviour, various modifications of the phenomenon of claw-waving were also noticed. The most widespread of these modifications was a type of synchronous claw-waving, shown only by males of U. annulipes. 3. 3. Synchronous claw-waving is a form of concerted waving by small groups of individuals. 4. 4. The movements involved in synchronous claw-waving are described in detail. 5. 5. Synchronous claw-waving showed both a seasonal and a diurnal peak, and thus has a definite connection with temperature. 6. 6. This highly specialised form of claw-waving is probably due to the abundant energy of the U. annulipes individuals, which spend the most time of all the species above-ground, feeding. © 1985.
CITATION STYLE
Gordon, H. R. S. (1958). Synchronous claw-waving of fiddler crabs. Animal Behaviour, 6(3–4), 238–241. https://doi.org/10.1016/0003-3472(58)90057-5
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