Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/3113
Full metadata record
DC FieldValueLanguage
dc.contributor.authorHolloway, J. C.en
dc.contributor.authorGeiser, Fritzen
dc.date.accessioned2009-11-17T16:00:00Z
dc.date.issued2001en
dc.identifier.citationJournal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 171(8), p. 643-650en
dc.identifier.issn0174-1578en
dc.identifier.urihttps://hdl.handle.net/1959.11/3113en
dc.description.abstractLittle information is available on seasonal changes in thermal physiology and energy expenditure in marsupials. To provide new information on the subject, we quantified how body mass, body composition, metabolic rate, maximum heat production, body temperature and thermal conductance change with season in sugar gliders ('Petaurus breviceps') held in outdoor aviaries. Sugar gliders increased body mass in autumn to a peak in May/June, which was caused to a large extent by an increase in body fat content. Body mass then declined to minimum values in August/September. Resting metabolic rate both below and above the thermoneutral zone (TNZ) was higher in summer than in winter and the lower critical temperature of the TNZ occurred at a higher ambient temperature (Ta) in summer. The basal metabolic rate was as much as 45% below that predicted from allometric equations for placental mammals and was about 15% lower in winter than in summer. In contrast, maximum heat production was raised significantly by about 20% in winter. This, together with an approximately 20% decrease in thermal conductance, resulted in a 13°C reduction of the minimum effective Ta gliders were able to withstand. Our study provides the first evidence that, despite the apparent lack of functional brown adipose tissue, sugar gliders are able to significantly increase heat production in winter. Moreover, the lower thermoregulatory heat production at most Tas in winter, when food in the wild is scarce, should allow them to reduce energy expenditure.en
dc.languageenen
dc.publisherSpringeren
dc.relation.ispartofJournal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiologyen
dc.titleSeasonal changes in the thermoenergetics of the marsupial sugar glider, 'Petaurus breviceps'en
dc.typeJournal Articleen
dc.identifier.doi10.1007/s003600100215en
dc.subject.keywordsComparative Physiologyen
local.contributor.firstnameJ. C.en
local.contributor.firstnameFritzen
local.subject.for2008060604 Comparative Physiologyen
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.epublicationsrecordpes:5173en
local.publisher.placeBerlin/Heidelberg, Germanyen
local.format.startpage643en
local.format.endpage650en
local.peerreviewedYesen
local.identifier.volume171en
local.identifier.issue8en
local.contributor.lastnameHollowayen
local.contributor.lastnameGeiseren
dc.identifier.staffune-id:fgeiseren
local.profile.orcid0000-0001-7621-5049en
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:3196en
dc.identifier.academiclevelAcademicen
local.title.maintitleSeasonal changes in the thermoenergetics of the marsupial sugar glider, 'Petaurus breviceps'en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 117<br />Views: 118<br />Downloads: 0en
local.search.authorHolloway, J. C.en
local.search.authorGeiser, Fritzen
Appears in Collections:Journal Article
Files in This Item:
2 files
File Description SizeFormat 
Show simple item record

SCOPUSTM   
Citations

27
checked on Nov 30, 2018

Page view(s)

66
checked on Mar 4, 2019
Google Media

Google ScholarTM

Check

Altmetric


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.