Climate dependent heating efficiency in the common lizard

Type Article
Date 2020-08
Language English
Author(s) Rutschmann AlexisORCID1, 2, Rozen-Rechels David3, 4, Dupoue AndreazORCID2, Blaimont Pauline5, de Villemereuil PierreORCID6, Miles Donald B.2, 7, Richard Murielle2, Clobert Jean2
Affiliation(s) 1 : Univ Auckland, Sch Biol Sci, Auckland, New Zealand.
2 : CNRS, Stn Ecol Theor & Expt SETE, Moulis, France.
3 : Sorbonne Univ, Inst Ecol & Sci Environm Paris IEES Paris, CNRS, IRD,INRA, Paris, France.
4 : La Rochelle Univ, Ctr Etud Biol Chize, CNRS, Villiers En Bois, France.
5 : Univ Calif Santa Cruz UCSC, Dept Ecol & Evolutionary Biol, Santa Cruz, CA USA.
6 : Museum Natl Hist Nat MNHN, Paris, France.
7 : Ohio Univ, Dept Biol Sci, Athens, OH 45701 USA.
Source Ecology And Evolution (2045-7758) (Wiley), 2020-08 , Vol. 10 , N. 15 , P. 8007-8017
DOI 10.1002/ece3.6241
WOS© Times Cited 8
Keyword(s) ectotherms, heating efficiency, heating rate, thermoregulation behavior, time budget
Abstract

Regulation of body temperature is crucial for optimizing physiological performance in ectotherms but imposes constraints in time and energy. Time and energy spent thermoregulating can be reduced through behavioral (e.g., basking adjustments) or biophysical (e.g., heating rate physiology) means. In a heterogeneous environment, we expect thermoregulation costs to vary according to local, climatic conditions and therefore to drive the evolution of both behavioral and biophysical thermoregulation. To date, there are limited data showing that thermal physiological adjustments have a direct relationship to climatic conditions. In this study, we explored the effect of environmental conditions on heating rates in the common lizard (Zootoca vivipara). We sampled lizards from 10 populations in the Massif Central Mountain range of France and measured whether differences in heating rates of individuals correlated with phenotypic traits (i.e., body condition and dorsal darkness) or abiotic factors (temperature and rainfall). Our results show that heat gain is faster for lizards with a higher body condition, but also for individuals from habitats with higher amount of precipitation. Altogether, they demonstrate that environmentally induced constraints can shape biophysical aspects of thermoregulation.

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How to cite 

Rutschmann Alexis, Rozen-Rechels David, Dupoue Andreaz, Blaimont Pauline, de Villemereuil Pierre, Miles Donald B., Richard Murielle, Clobert Jean (2020). Climate dependent heating efficiency in the common lizard. Ecology And Evolution, 10(15), 8007-8017. Publisher's official version : https://doi.org/10.1002/ece3.6241 , Open Access version : https://archimer.ifremer.fr/doc/00731/84318/