A Persistent, Light-Preference Rhythm in the Fiddler Crab, Uca pugnax and Its Possible Adaptive Significance
- 1 November 1964
- journal article
- research article
- Published by University of Chicago Press in The American Naturalist
- Vol. 98 (903) , 431-434
- https://doi.org/10.1086/282337
Abstract
A method was devised to measure[long dash]continuously and automatically [long dash] the orientational response of fiddler crabs to a constant, directional light source. In crabs maintained in constant conditions, the response was found to be rhythmic light being preferred during the early morning hours and darkness becoming attractive at night. The possible ecological significance of such a rhythm is discussed.This publication has 4 references indexed in Scilit:
- Distribution of Fiddler Crabs in Georgia Salt MarshesEcology, 1958
- PERSISTENT TIDAL CYCLES OF SPONTANEOUS MOTOR ACTIVITY IN THE FIDDLER CRAB, UCA PUGNAXThe Biological Bulletin, 1957
- TEMPERATURE INDEPENDENCE IN A UNICELLULAR “CLOCK”Proceedings of the National Academy of Sciences, 1956
- Persistent diurnal and tidal rhythms of color change in the fiddler crab, Uca pugnaxJournal of Experimental Zoology, 1953