Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/51768
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dc.contributor.authorGeiser, Fritzen
dc.contributor.authorStawski, Clareen
dc.contributor.authorWacker, Chris Ben
dc.contributor.authorNowack, Juliaen
dc.date.accessioned2022-04-28T00:14:14Z-
dc.date.available2022-04-28T00:14:14Z-
dc.date.issued2017-11-02-
dc.identifier.citationFrontiers in Physiology, v.8, p. 1-7en
dc.identifier.issn1664-042Xen
dc.identifier.urihttps://hdl.handle.net/1959.11/51768-
dc.description.abstractThe evolution of endothermy in mammals and birds has been widely debated. Endothermy is characterized by high endogenous heat production via combustion of metabolic fuels. This differs from ectothermy in most living organisms, which generally do not produce substantial amounts of internal heat for thermoregulation (Tattersall et al., 2012; Withers et al., 2016). Endogenous heat production is energetically very costly. In comparison to ectothermic terrestrial vertebrates, namely the amphibians and reptiles, the minimum metabolic rate (MR) of normothermic or homeothermic (high constant body temperature, T<sub>b</sub>) animals at rest is about 4–8-fold higher in the endotherms. This difference is even more pronounced at low ambient temperatures (T<sub>a</sub>) at which the T<sub>b</sub> of ectotherms follows T<sub>a</sub>, and the MR decreases to even lower levels. In contrast, the T<sub>b</sub> of homeothermic endotherms remains high and constant over a wide range of T<sub>a</sub>. Therefore, to compensate for increased heat loss at low T<sub>a</sub>, MR of especially small mammals and birds must increase substantially and can be 100-fold or more of that in ectotherms (Bartholomew, 1982). Of course this high MR requires a substantial uptake of food and in endotherms much of this chemical energy is simply converted into heat for thermoregulation rather than growth or reproduction as in ectotherms.en
dc.languageenen
dc.publisherFrontiers Research Foundationen
dc.relation.ispartofFrontiers in Physiologyen
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titlePhoenix from the Ashes: Fire, Torpor, and the Evolution of Mammalian Endothermyen
dc.typeJournal Articleen
dc.identifier.doi10.3389/fphys.2017.00842en
dc.identifier.pmid29163191en
dcterms.accessRightsUNE Greenen
local.contributor.firstnameFritzen
local.contributor.firstnameClareen
local.contributor.firstnameChris Ben
local.contributor.firstnameJuliaen
local.relation.isfundedbyARCen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailfgeiser@une.edu.auen
local.profile.emailcstawsk2@une.edu.auen
local.profile.emailcwacker2@une.edu.auen
local.profile.emailjnowack@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeSwitzerlanden
local.identifier.runningnumber842en
local.format.startpage1en
local.format.endpage7en
local.identifier.scopusid85032733840en
local.peerreviewedYesen
local.identifier.volume8en
local.title.subtitleFire, Torpor, and the Evolution of Mammalian Endothermyen
local.access.fulltextYesen
local.contributor.lastnameGeiseren
local.contributor.lastnameStawskien
local.contributor.lastnameWackeren
local.contributor.lastnameNowacken
dc.identifier.staffune-id:fgeiseren
dc.identifier.staffune-id:cstawsk2en
dc.identifier.staffune-id:cwacker2en
dc.identifier.staffune-id:jnowacken
local.profile.orcid0000-0001-7621-5049en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/51768en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitlePhoenix from the Ashesen
local.relation.fundingsourcenoteThis work was supported by a University of New England Postdoctoral Research Fellowship and by a Discovery Early Career Researcher Award from the Australian Research Council to CS, an Australian Postgraduate Award to CW, a German Academic Exchange Service, a Endeavour Research Fellowship and a Alexander von Humboldt Feodor Lynen Fellowship to JN, and grants from the Australian Research Council and the University of New England to FG.en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorGeiser, Fritzen
local.search.authorStawski, Clareen
local.search.authorWacker, Chris Ben
local.search.authorNowack, Juliaen
local.open.fileurlhttps://rune.une.edu.au/web/retrieve/5bc7f056-2ce7-4081-9052-750d55e577e7en
local.uneassociationYesen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.identifier.wosid000414305300001en
local.year.published2017en
local.fileurl.openhttps://rune.une.edu.au/web/retrieve/5bc7f056-2ce7-4081-9052-750d55e577e7en
local.fileurl.openpublishedhttps://rune.une.edu.au/web/retrieve/5bc7f056-2ce7-4081-9052-750d55e577e7en
local.subject.for2020310912 Comparative physiologyen
local.subject.for2020310907 Animal physiological ecologyen
local.subject.seo2020180606 Terrestrial biodiversityen
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School of Environmental and Rural Science
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