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Ventilation, Gas Exchange, And Aerobic Scope In A Small Monitor Lizard, Varanus Gilleni, Philip E. Bickler, Roger A. Anderson

Biology Faculty and Staff Publications

Standard rates of 0₂ consumption (Vo₂) in the dark of Varanus gi/leni (mean mass = 30 g) were measured at 25, 31, 34, and 37 C. At 37 C, the mean value (195 ml 0_{2 STPD} kg^-1 h^-1) was 22% lower than that predicted by a regression equation for lizards as a group (Bennett and Dawson 1976). Despite appearing to be asleep, three- to fourfold elevations in standard Vo₂ were seen in lizards with lightweight, transparent respiratory masks. Vo₂ was also measured during treadmill exercise at speeds from 5 to 15 …