1000 resultados para Maine, Henry Sumner, 1822-1888
Resumo:
Some aspects of torpor have been studied among captive Suncus etruscus by recording the nest temperature. Torpors show a circadian pattern and occur spontaneously or can be induced by food shortage. Body temperature can be controlled during torpor, remaining relatively high at low ambiant temperatures. At 20° C, spontaneous torpors seem to be less deep than induced tropors, but both show similar patterns at 5-8 ° C. Spontaneous torpors begin between 01°° and 06°°, whereas the onset of diet induced torpors seems to depend also on food exhausting. The rates of activity (A) and of torpor (T) show under constant conditions a daily variability. Increase of T is linked with a decrease of A and the relationship could agree with A(%) = Ao( 1-T/100), where Ao is daily rate of activity when T = 0. Occurence of torpor among other Soricidae, possible occurence among free living Suncus etruscus and energy saving are discussed
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Référence bibliographique : Rol, 56902
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Référence bibliographique : Lhéritier, 38
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Référence bibliographique : Rol, 56901
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Référence bibliographique : Rol, 56900
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Référence bibliographique : Rol, 56899
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Référence bibliographique : Rol, 55120
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Référence bibliographique : Rol, 55119