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Arthropods, 2013, 2(3): 95-104
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Article

The locomotory rhythmic activity in scorpions: with a review

Michael R. Warburg
Dept. of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel

Received 21 February 2013;Accepted 25 March 2013;Published online 1 September 2013
IAEES

Abstract
Locomotory rhythmic behavior is entrained by the change between photophase and skotophase and to some extent by thermal conditions. In many species studied most activity takes place during early night hours. Some species show completely a nocturnal activity pattern, whereas a few species are entirely diurnal. There does not appear to be a pattern related to the timing and extent of the photophase. Except perhaps for Leiurus quinquestriatus (Hemprich and Ehrenberg, 1829) which appears to be less active at the highest temperature. This subject was studied in 30 species of scorpions most of them buthids (53.3%), that were studied so far in 42 different studies.

Keywords Scorpiones;diel locomotory rhythm;thermal 'Zeitgeber'.

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