Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/53867
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dc.contributor.authorDausmann, Kathrin Hen
dc.contributor.authorKörtner, Gerharden
dc.contributor.authorAharon-Rotman, Yaaraen
dc.contributor.authorCurrie, Shannon Een
dc.contributor.authorGeiser, Fritzen
dc.date.accessioned2023-01-04T05:18:39Z-
dc.date.available2023-01-04T05:18:39Z-
dc.date.issued2023-
dc.identifier.citationPhysiological and Biochemical Zoology, 96(1), p. 62-75en
dc.identifier.issn1537-5293en
dc.identifier.issn1522-2152en
dc.identifier.urihttps://hdl.handle.net/1959.11/53867-
dc.description.abstract<p>Torpor is a highly effective response to counter various ecological and physiological bottlenecks in endotherms. In this study, we examined interrelations between thermoregulatory responses and key environmental variables in free-living squirrel gliders (<i>Petaurus norfolcensis</i>) in a habitat with drastic climatic and ecological changes across seasons. To this end, we measured body temperature (<i>T</i><sub>b</sub>) and heart rate (<i>f</i><sub>H</sub>) simultaneously throughout the year using implanted data loggers. Squirrel gliders in our study experienced fluctuations in ambient temperature (<i>T</i><sub>a</sub>) between -4.0°C and 44.1°C and expressed torpor at different times during the year. In contrast to our expectations, torpor seemed to be employed flexibly, on demand, and most frequently in spring rather than during the coldest and/or hottest periods. Torpor bouts lasted, on average, about 5 h, and <i>T</i><sub>b</sub> during torpor dropped as low as 17.9°C. The <i>f</i><sub>H</sub> during torpor decreased below 50 bpm, which is about one-third of the basal level. The ability to record <i>f</i><sub>H</sub> alongside <i>T</i><sub>b</sub> enabled us to also report periods of low <i>f</i><sub>H</sub> during thermoconforming hyperthermia at <i>T</i><sub>a</sub>'s above 35°C that likely occurred to conserve energy and water. Our findings double the body size of Australian gliders for which data on torpor are available and advance our ecological understanding of the dynamics of torpor expression in wild mammals and of how animals cope with varying conditions. Moreover, they highlight that the flexibility of physiology and thermoregulatory responses are clearly more complex than previously thought.</p>en
dc.languageenen
dc.publisherUniversity of Chicago Pressen
dc.relation.ispartofPhysiological and Biochemical Zoologyen
dc.titleFlexible Employment of Torpor in Squirrel Gliders (Petaurus norfolcensis): An Adaptation to Unpredictable Climate?en
dc.typeJournal Articleen
dc.identifier.doi10.1086/722131en
local.contributor.firstnameKathrin Hen
local.contributor.firstnameGerharden
local.contributor.firstnameYaaraen
local.contributor.firstnameShannon Een
local.contributor.firstnameFritzen
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.emailgkoertne@une.edu.auen
local.profile.emailyaharonr@une.edu.auen
local.profile.emailfgeiser@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeUnited States of Americaen
local.format.startpage62en
local.format.endpage75en
local.peerreviewedYesen
local.identifier.volume96en
local.identifier.issue1en
local.title.subtitleAn Adaptation to Unpredictable Climate?en
local.contributor.lastnameDausmannen
local.contributor.lastnameKörtneren
local.contributor.lastnameAharon-Rotmanen
local.contributor.lastnameCurrieen
local.contributor.lastnameGeiseren
dc.identifier.staffune-id:gkoertneen
dc.identifier.staffune-id:yaharonren
dc.identifier.staffune-id:fgeiseren
local.profile.orcid0000-0001-8230-0709en
local.profile.orcid0000-0002-2142-2718en
local.profile.orcid0000-0001-7621-5049en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/53867en
local.date.onlineversion2022-11-21-
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleFlexible Employment of Torpor in Squirrel Gliders (Petaurus norfolcensis)en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorDausmann, Kathrin Hen
local.search.authorKörtner, Gerharden
local.search.authorAharon-Rotman, Yaaraen
local.search.authorCurrie, Shannon Een
local.search.authorGeiser, Fritzen
local.open.fileurlhttps://rune.une.edu.au/web/retrieve/feee0f00-fc2e-4803-a139-a90c1b9c94d7en
local.uneassociationYesen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.year.available2022en
local.year.published2023en
local.fileurl.openhttps://rune.une.edu.au/web/retrieve/feee0f00-fc2e-4803-a139-a90c1b9c94d7en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/feee0f00-fc2e-4803-a139-a90c1b9c94d7en
local.subject.for2020310907 Animal physiological ecologyen
local.subject.seo2020280102 Expanding knowledge in the biological sciencesen
local.profile.affiliationtypeUNE Affiliationen
local.profile.affiliationtypeUNE Affiliationen
local.profile.affiliationtypeUnknownen
local.profile.affiliationtypeExternal Affiliationen
local.profile.affiliationtypeUNE Affiliationen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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