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Non-Torpid Heterothermy in Mammals: Another Category along the Homeothermy–Hibernation Continuum

Levesque, DL, Breit, AM, Brown, E, Nowack, J and Welman, S (2023) Non-Torpid Heterothermy in Mammals: Another Category along the Homeothermy–Hibernation Continuum. Integrative and Comparative Biology, 63 (5). pp. 1039-1048. ISSN 1540-7063

Non torpid heterothermy in mammals another category along the homeothermy hibernation continuum.pdf - Accepted Version

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Variability in body temperature is now recognized to be widespread among whole-body endotherms with homeothermy being the exception rather than the norm. A wide range of body temperature patterns exists in extant endotherms, spanning from strict homeothermy, to occasional use of torpor, to deep seasonal hibernation with many points in between. What is often lost in discussions of heterothermy in endotherms are the benefits of variations in body temperature outside of torpor. Endotherms that do not use torpor can still obtain extensive energy and water savings from varying levels of flexibility in normothermic body temperature regulation. Flexibility at higher temperatures (heat storage or facultative hyperthermia) can provide significant water savings, while decreases at cooler temperatures, even outside of torpor, can lower the energetic costs of thermoregulation during rest. We discuss the varying uses of the terms heterothermy, thermolability, and torpor to describe differences in the amplitude of body temperature cycles and advocate for a broader use of the term “heterothermy” to include non-torpid variations in body temperature.

Item Type: Article
Additional Information: This is a pre-copyedited, author-produced version of an article accepted for publication in Integrative and Comparative Biology following peer review. Danielle L Levesque, Ana M Breit, Eric Brown, Julia Nowack, Shaun Welman, Non-Torpid Heterothermy in Mammals: Another Category along the Homeothermy–Hibernation Continuum, Integrative and Comparative Biology, Volume 63, Issue 5, November 2023, Pages 1039–1048 The version of record is available online at: https://doi.org/10.1093/icb/icad094
Uncontrolled Keywords: Animals; Mammals; Water; Body Temperature; Hibernation; Energy Metabolism; Body Temperature Regulation; Torpor; Animals; Hibernation; Body Temperature Regulation; Mammals; Body Temperature; Water; Torpor; Energy Metabolism; 0601 Biochemistry and Cell Biology; 0602 Ecology; 0608 Zoology; Evolutionary Biology
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QH Natural history > QH301 Biology
Divisions: Biological & Environmental Sciences (from Sep 19)
Publisher: Oxford University Press
SWORD Depositor: A Symplectic
Date Deposited: 20 Mar 2024 09:52
Last Modified: 05 Jul 2024 00:50
DOI or ID number: 10.1093/icb/icad094
URI: https://researchonline.ljmu.ac.uk/id/eprint/22862
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