Activity Cycle and Thermoregulation in the Australian Gecko Gehyra variegata

Maximum activity of Gehyra variegata takes place in the three hr following sunset. During the day, lizards actively thermoregulate under cover by moving beneath the bark of their tree stump habitat to keep below the bark being heated by the sun and by pressing the body to the inner surface of the bark. The minimum foraging temperature was calculated, on the basis of aktograph studies, as 18? C and is more important in relation to gekkonid ecology than mean preferred temperature since it is more likely to be a limiting factor in their distribution.