Body temperatures of Tropidurus torquatus (Squamata, Tropiduridae) from coastal populations: Do body temperatures vary along their geographic range?

We studied the geographic variation in body temperatures of the lizard Tropidurus torquatus in 10 restinga populations along approximately 1500 km of Brazilian coast. The mean activity body temperatures (30.8-36.2 °C) seems to remain constant along the populations and the differences recorded among them result from the adjustment of each lizard population to the local thermal environment (i.e. may express in part the local microhabitat temperatures occurring in each of the localities in that particular moment). Forested and open habitat tropidurine species have different mean activity body temperatures, probably as a consequence of the different thermal environments in these habitats.