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Nocturnal body temp...
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Nord, AndreasLund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Evolutionary ecology,Department of Biology,Faculty of Science
(författare)
Nocturnal body temperature in wintering blue tits is affected by roost-site temperature and body reserves.
- Artikel/kapitelEngelska2011
Förlag, utgivningsår, omfång ...
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2011-03-30
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Springer Science and Business Media LLC,2011
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:fee6dcd1-60d6-49bf-a73e-13e551d7fde0
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https://lup.lub.lu.se/record/1883288URI
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https://doi.org/10.1007/s00442-011-1972-6DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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Birds commonly use rest-phase hypothermia, a controlled reduction of body temperature (T (b)), to conserve energy during times of high metabolic demands. We assessed the flexibility of this heterothermic strategy by increasing roost-site temperature and recording the subsequent T (b) changes in wintering blue tits (Cyanistes caeruleus L.), assuming that blue tits would respond to treatment by increasing T (b). We found that birds increased T (b) when roost-site temperature was increased, but only at low ambient temperatures. Moreover, birds with larger fat reserves regulated T (b) at higher levels than birds carrying less fat. This result implies that a roosting blue tit maintains its T (b) at the highest affordable level, as determined by the interacting effect of ecophysiological costs associated with rest-phase hypothermia and energy reserves, in order to minimize potential fitness costs associated with a low T (b).
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Nilsson, JohanLund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Evolutionary ecology,Department of Biology,Faculty of Science(Swepub:lu)zooe-jni
(författare)
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Nilsson, Jan-ÅkeLund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Evolutionary ecology,Department of Biology,Faculty of Science(Swepub:lu)ekol-jan
(författare)
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Evolutionär ekologiBiologiska institutionen
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Oecologia: Springer Science and Business Media LLC167, s. 21-251432-19390029-8549
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