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Type: Artigo de periódico
Title: Thermoregulatory behaviour in Tropidurus torquatus (Squamata, Tropiduridae) from Brazilian coastal populations: an estimate of passive and active thermoregulation in lizards
Author: Kiefer, MC
Van Sluys, M
Rocha, CFD
Abstract: Geographical variation in the degree of thermoregulatory behaviour of the lizard Tropidurus torquatus was studied in 10 restinga populations along approximately 1500 km of Brazilian coast. An index of thermoregulation was estimated using the difference between body and environmental (air and substrate) temperatures and the percentage of negative values for these differences (proportion of body temperatures lower than environmental temperatures). In most populations, the lizards primarily used active thermoregulation, through behavioural means, and mainly in relation to substrate temperatures. Along the restingas, the degree of active thermoregulation increased as a function of the increase in the local environmental temperatures along the restingas. Behavioural thermoregulation of T. torquatus helps the lizards to maintain their body temperatures within an optimal range in which to perform their normal daily activities.
Subject: geographical ecology
restinga habitat
thermal ecology
thermoregulatory behaviour
Tropidurus torquatus
Country: Inglaterra
Editor: Blackwell Publishing
Rights: fechado
Identifier DOI: 10.1111/j.1463-6395.2007.00254.x
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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