Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Acclimation to Water Restriction Implies Different Paces for Behavioral and Physiological Responses in a Lizard Species

Abstract : Chronic changes in climate conditions may select for acclimation responses in terrestrial animals living in fluctuating environments and beneficial acclimation responses may be key to the resilience of these species to global changes. Despite evidence that climate warming induces changes in water availability, acclimation responses to water restriction are understudied relative to thermal acclimation. In addition, acclimation responses may involve different modes, paces and trade-offs between physiological and behavioral traits. Here, we tested the dynamical acclimation responses of a dry-skinned terrestrial ectotherm to a chronic water restriction. Yearling common lizards (Zootoca vivipara) were exposed to a sub-lethal water restriction during 2 months of the summer season in laboratory conditions, then released in outdoor conditions for 10 additional months. Candidate behavioral (exploration, basking, and thermal preferences) and physiological traits (metabolism at rest and standard water loss rate) potentially involved in the acclimation response were measured repeatedly during and after water restriction. We observed a sequential acclimation response in water restricted animals (yearlings spent less time basking during the first weeks of water deprivation) which was followed by delayed sex-specific physiological consequences of the water restriction during the following months (thermal depression in males and lower standard evaporative water loss rates in females). Despite short-term negative effects of water restriction on body growth, annual growth, survival and reproduction were not significantly different between water restricted and control yearlings. This demonstrates that beneficial acclimation responses to water restriction involve both short-term flexible behavioral responses and delayed changes in thermal and water biology traits.
Complete list of metadata

Cited literature [67 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02480584
Contributor : Jean-François Le Galliard Connect in order to contact the contributor
Submitted on : Monday, November 9, 2020 - 12:28:48 PM
Last modification on : Tuesday, May 10, 2022 - 3:26:01 PM
Long-term archiving on: : Wednesday, February 10, 2021 - 6:53:25 PM

File

19062_R2.pdf
Files produced by the author(s)

Identifiers

Citation

David Rozen-Rechels, Andréaz Dupoué, Sandrine Meylan, Kenza Qitout, Beatriz Decencière, et al.. Acclimation to Water Restriction Implies Different Paces for Behavioral and Physiological Responses in a Lizard Species. Physiological and Biochemical Zoology, University of Chicago Press, 2020, 93 (2), pp.160-174. ⟨10.1086/707409⟩. ⟨hal-02480584⟩

Share

Metrics

Record views

110

Files downloads

138