2008
DOI: 10.5007/2175-7925.2008v21n4p123
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Padrões de atividade locomotora diária de Bothrops jararacussu (Serpentes: Viperidae): Uma resposta relacionada às condições ambientais de luminosidade ou a ritmos endógenos?

Abstract: ResumoEmbora a maioria dos biologistas circadianos provavelmente assuma que os relógios circadianos controlem os padrões de atividade, também é sabido que estímulos ambientais podem mascarar os ritmos endógenos, quer pelo aumento ou pela supressão da atividade. A hipótese de que ritmos circadianos são geralmente controlados pelos ciclos exógenos, foi testada experimentalmente em Bothrops jararacussu. Neste estudo, investigamos a atividade locomotora sobre condições de luminosidade e escuro constantes durante 2… Show more

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Cited by 2 publications
(3 citation statements)
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“…Therefore, this possibly occurred as a result of an energy-saving mechanism, which was a consequence of the decreased activity. Furthermore, this may indicate the anticipation of the scorpions for these environmental conditions, as a result of the regulation of the circadian rhythms and this system's fundamental role in the initiation and interruption of the activities of organisms (Cruz, 2007).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Therefore, this possibly occurred as a result of an energy-saving mechanism, which was a consequence of the decreased activity. Furthermore, this may indicate the anticipation of the scorpions for these environmental conditions, as a result of the regulation of the circadian rhythms and this system's fundamental role in the initiation and interruption of the activities of organisms (Cruz, 2007).…”
Section: Discussionmentioning
confidence: 99%
“…Even with the evidence that the circadian rhythm in organisms is composed of several circadian oscillators, the structure and interaction of this system with the environment are poorly understood, especially for invertebrate organisms because studies are concentrated on vertebrates, specifically, on mammals (Cruz, 2007).…”
Section: Discussionmentioning
confidence: 99%
“…In Japanese nocturnal snakes, body temperature may be as low as 10º C during activity in the winter (Mori and Toda 2018). The ability to be active at suboptimal body temperatures has been reported in nature, where some species that are specialized to be active in the twilight and during the night experience optimal body temperatures above the air temperature (Peterson 1987;Dorcas and Peterson 1998;Llewelyn et al 2005;Cruz et al 2008). Functional studies suggest that nocturnal snake species have better performance in the low temperatures at night (Llewelyn et al 2006).…”
Section: Implications Of S/v For Thermal Relationships In Ectothermsmentioning
confidence: 99%