Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/16113
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dc.contributor.authorBieber, Claudiaen
dc.contributor.authorLebl, Karinen
dc.contributor.authorStalder, Gabrielleen
dc.contributor.authorGeiser, Fritzen
dc.contributor.authorRuf, Thomasen
dc.date.accessioned2014-11-21T16:48:00Z-
dc.date.issued2014-
dc.identifier.citationFunctional Ecology, 28(1), p. 167-177en
dc.identifier.issn1365-2435en
dc.identifier.issn0269-8463en
dc.identifier.urihttps://hdl.handle.net/1959.11/16113-
dc.description.abstractHibernation is the most effective means for energy conservation during winter in mammals. The drawbacks of deep and prolonged torpor include reduced,immunocompetence, and consequently, hibernators should be selected to minimize torpor expression when climatic conditions or energy availability (e.g. food or fat stores) permit. Therefore, it seems surprising that some hibernators employ extraordinary long hibernation seasons, lasting well beyond periods with unfavourable conditions. Because of their extended use of torpor, edible dormice ('Glis glis') provide an ideal model for scrutinizing interactions between energy reserves (i.e. body fat stores) and thermoregulatory patterns. We used a multimodel inference approach to analyse body temperature data (i.e. use of torpor) from 42 entire hibernation seasons over 4 years in females in relation to body mass. Body mass prior to hibernation did not affect the duration of the hibernation season, but animals hibernated for 'c'. 8 months, that is, 2 months longer than required by environmental conditions. Fatter individuals aroused significantly more often, had a higher mean minimum body temperature during torpor and remained euthermic for longer periods than leaner animals. Surplus energy was therefore not used to shorten the hibernation season, but to rewarm more frequently, and to allow shallower torpor bouts. These adjustments apparently serve to avoid negative effects of torpor and, perhaps equally importantly, to minimize the time active above-ground. We argue that maintaining a short active season, despite surplus energy reserves, may be explained by known beneficial effects of hibernation on survival rates (via predator avoidance). Our data provide quantitative evidence that hibernation is a flexible tool within life-history strategies. We conclude that, apart from energetic necessities due to harsh environmental conditions, predator avoidance may be an important factor influencing patterns of hibernation and torpor in mammals. Thus, our study indicates that climatic conditions alone are not a good predictor of hibernation patterns or survival in hibernating species during global climate change.en
dc.languageenen
dc.publisherWiley-Blackwell Publishing Ltden
dc.relation.ispartofFunctional Ecologyen
dc.titleBody mass dependent use of hibernation: why not prolong the active season, if they can?en
dc.typeJournal Articleen
dc.identifier.doi10.1111/1365-2435.12173en
dcterms.accessRightsGolden
dc.subject.keywordsAnimal Physiological Ecologyen
local.contributor.firstnameClaudiaen
local.contributor.firstnameKarinen
local.contributor.firstnameGabrielleen
local.contributor.firstnameFritzen
local.contributor.firstnameThomasen
local.subject.for2008060806 Animal Physiological Ecologyen
local.subject.seo2008970106 Expanding Knowledge in the Biological Sciencesen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailfgeiser@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20141119-145439en
local.publisher.placeUnited Kingdomen
local.format.startpage167en
local.format.endpage177en
local.identifier.scopusid84892851262en
local.peerreviewedYesen
local.identifier.volume28en
local.identifier.issue1en
local.title.subtitlewhy not prolong the active season, if they can?en
local.access.fulltextYesen
local.contributor.lastnameBieberen
local.contributor.lastnameLeblen
local.contributor.lastnameStalderen
local.contributor.lastnameGeiseren
local.contributor.lastnameRufen
dc.identifier.staffune-id:fgeiseren
dc.identifier.staffune-id:trufen
local.profile.orcid0000-0001-7621-5049en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:16350en
local.identifier.handlehttps://hdl.handle.net/1959.11/16113en
dc.identifier.academiclevelAcademicen
local.title.maintitleBody mass dependent use of hibernationen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorBieber, Claudiaen
local.search.authorLebl, Karinen
local.search.authorStalder, Gabrielleen
local.search.authorGeiser, Fritzen
local.search.authorRuf, Thomasen
local.uneassociationUnknownen
local.identifier.wosid000331083900017en
local.year.published2014en
local.subject.for2020310907 Animal physiological ecologyen
local.subject.seo2020280102 Expanding knowledge in the biological sciencesen
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