Artigo Acesso aberto Revisado por pares

ON THE LUNAR ORIENTATION OF SANDHOPPERS (AMPHIPODA TALITRIDAE)

1963; Marine Biological Laboratory (MBL); Volume: 124; Issue: 1 Linguagem: Inglês

10.2307/1539571

ISSN

1939-8697

Autores

F. Papi, L. Pardi,

Tópico(s)

Magnetic and Electromagnetic Effects

Resumo

1. Under the action of appropriate releasing stimuli the amphipod, Talitrus saltator, is capable of orienting by the position of the moon in a relatively constant azimuth. This ability still functions after 10 or more hours of captivity in constant darkness.2. The direction of escape and the degree of scatter are not noticeably influenced by the repeated photo-bulb flashes.3. Additional evidence supports the hypothesis that the lunar orientation of Talitrus is due to a continuously-operating lunar physiological rhythm. The hypothesis of a single-cycle night-time orientation rhythm, put forward for Orchestoidea corniculata, does not seem applicable to Talitrus saltator.

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