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Diel Variation of Oxygen Consumption in Three Species of Philippine Gekkonid Lizards

1981; American Society of Ichthyologists and Herpetologists; Volume: 1981; Issue: 1 Linguagem: Inglês

10.2307/1444056

1938-5110

Martin E. Feder, Juliana H. Feder,

Species Distribution and Climate Change

Three species of nocturnal Philippine geckos, Cosymbotus platyurus, Hemidactylus frenatus and Lepidodactylus lugubris, were examined to determine the extent of correlation between diel variation in rate of oxygen consumption (TVo) and activity state. Standard V0, of the three species are indistinguishable after adjustment for differences in body size. A single equation predicts standard o, for all three species: Standard Vo, = 131.9 Weight0709, where To, is in dl-h-' and weight is in g. Standard V~o is lower than rates previously reported for most other reptiles, but similar to rates for other geckos. Routine rV0 varied significantly throughout the day in H. frenatus and L. lugubris; in these two species routine VTo is higher at night than during the day. The three species differ in the duration and timing of maxima and minima in routine ro,. Diel variation in Vo, is sometimes correlated with activity state, but often is not.