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Multiscale evaluation of thermal dependence in the glucocorticoid response of vertebrates

Jessop, Tim S., Lane, Meagan L., Teasdale, Luisa, Stuart-Fox, Devi, Wilson, Robbie S., Careau, Vincent and Moore, Ignacio T. 2016, Multiscale evaluation of thermal dependence in the glucocorticoid response of vertebrates, American naturalist, vol. 188, no. 3, pp. 342-356, doi: 10.1086/687588.

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Title Multiscale evaluation of thermal dependence in the glucocorticoid response of vertebrates
Author(s) Jessop, Tim S.ORCID iD for Jessop, Tim S.
Lane, Meagan L.
Teasdale, Luisa
Stuart-Fox, Devi
Wilson, Robbie S.
Careau, Vincent
Moore, Ignacio T.
Journal name American naturalist
Volume number 188
Issue number 3
Start page 342
End page 356
Total pages 15
Publisher University of Chicago
Place of publication Chicago, Ill.
Publication date 2016-09
ISSN 0003-0147
Keyword(s) physiological regulation
thermal dependency
steroid hormones
Summary Environmental temperature has profound effects on animal physiology, ecology, and evolution. Glucocorticoid (GC) hormones, through effects on phenotypic performance and life history, provide fundamental vertebrate physiological adaptations to environmental variation, yet we lack a comprehensive understanding of how temperature influences GC regulation in vertebrates. Using field studies and metaand comparative phylogenetic analyses, we investigated how acute change and broadscale variation in temperature correlated with baseline and stress-induced GC levels. Glucocorticoid levels were found to be temperature and taxon dependent, but generally, vertebrates exhibited strong positive correlations with acute changes in temperature. Furthermore, reptile baseline, bird baseline, and capture stressinduced GC levels to some extent covaried with broadscale environmental temperature. Thus, vertebrate GC function appears clearly thermally influenced. However, we caution that lack of detailed knowledge of thermal plasticity, heritability, and the basis for strong phylogenetic signal in GC responses limits our current understanding of the role of GC hormones in species’ responses to current and future climate variation.
Language eng
DOI 10.1086/687588
Field of Research 060203 Ecological Physiology
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, University of Chicago
Free to Read? No
Free to Read Start Date 2017-10-01
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Created: Thu, 13 Oct 2016, 10:10:34 EST

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