Tidal rhythms in activity in the intertidal gastropodPolinices incei (Philippi) |
| |
Authors: | R. L. Kitching J. M. Hughes H. F. Chapman |
| |
Affiliation: | (1) Present address: Department of Ecosystem Management, University of New England, 2351 Armidale, N. S. W., Australia;(2) School of Australian Environmental Studies, Griffith University, 4111 Nathan, Queensland, Australia |
| |
Abstract: | When removed into the laboratory, the intertidal snailPolinices incei, retains a tidal rhythm in activity for several days when maintained under conditions of constant light. There is, in addition, a gradual decline in activity following collection and a batch to batch effect of some note. When a 12∶12 light regime is maintained there is apparent also a c. 24 h rhythm in activity which may supercede the tidal one under some circumstances. The simplest explanation of the results is that there exist both tidal and diel rhythms. These results are compared with those observed by others for a variety of marine organisms, the adaptiveness of the behaviour pattern is discussed, and the implications of the work for further behavioural studies is explored. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|