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Theoretical models of adaptive energy management in small wintering birds

Brodin, Anders LU (2007) In Royal Society of London. Philosophical Transactions B. Biological Sciences 362(1486). p.1857-1871
Abstract
Many small passerines are resident in forests with very cold winters. Considering their size and the adverse conditions, this is a remarkable feat that requires optimal energy management in several respects, for example regulation of body fat reserves, food hoarding and night-time hypothermia. Besides their beneficial effect on survival, these behaviours also entail various costs. The scenario is complex with many potentially important factors, and this has made 'the little bird in winter' a popular topic for theoretic modellers. Many predictions could have been made intuitively, but models have been especially important when many factors interact. Predictions that hardly could have been made without models include: (i) the minimum... (More)
Many small passerines are resident in forests with very cold winters. Considering their size and the adverse conditions, this is a remarkable feat that requires optimal energy management in several respects, for example regulation of body fat reserves, food hoarding and night-time hypothermia. Besides their beneficial effect on survival, these behaviours also entail various costs. The scenario is complex with many potentially important factors, and this has made 'the little bird in winter' a popular topic for theoretic modellers. Many predictions could have been made intuitively, but models have been especially important when many factors interact. Predictions that hardly could have been made without models include: (i) the minimum mortality occurs at the fat level where the marginal values of starvation risk and predation risk are equal; (ii) starvation risk may also decrease when food requirement increases; (iii) mortality from starvation may correlate positively with fat reserves; (iv) the existence of food stores can increase fitness substantially even if the food is not eaten; (v) environmental changes may induce increases or decreases in the level of reserves depending on whether changes are temporary or permanent; and (vi) hoarding can also evolve under seemingly group-selectionistic conditions. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
nocturnal hypothermia, food hoarding, adaptive fat regulation, energy reserves, small birds, theoretical models
in
Royal Society of London. Philosophical Transactions B. Biological Sciences
volume
362
issue
1486
pages
1857 - 1871
publisher
Royal Society
external identifiers
  • wos:000249516700014
  • scopus:35148886300
ISSN
1471-2970
DOI
10.1098/rstb.2006.1812
language
English
LU publication?
yes
id
ee3575e4-2e41-4831-bc8e-ca558b7e2757 (old id 656431)
date added to LUP
2007-12-11 16:01:29
date last changed
2017-10-01 04:48:48
@article{ee3575e4-2e41-4831-bc8e-ca558b7e2757,
  abstract     = {Many small passerines are resident in forests with very cold winters. Considering their size and the adverse conditions, this is a remarkable feat that requires optimal energy management in several respects, for example regulation of body fat reserves, food hoarding and night-time hypothermia. Besides their beneficial effect on survival, these behaviours also entail various costs. The scenario is complex with many potentially important factors, and this has made 'the little bird in winter' a popular topic for theoretic modellers. Many predictions could have been made intuitively, but models have been especially important when many factors interact. Predictions that hardly could have been made without models include: (i) the minimum mortality occurs at the fat level where the marginal values of starvation risk and predation risk are equal; (ii) starvation risk may also decrease when food requirement increases; (iii) mortality from starvation may correlate positively with fat reserves; (iv) the existence of food stores can increase fitness substantially even if the food is not eaten; (v) environmental changes may induce increases or decreases in the level of reserves depending on whether changes are temporary or permanent; and (vi) hoarding can also evolve under seemingly group-selectionistic conditions.},
  author       = {Brodin, Anders},
  issn         = {1471-2970},
  keyword      = {nocturnal hypothermia,food hoarding,adaptive fat regulation,energy reserves,small birds,theoretical models},
  language     = {eng},
  number       = {1486},
  pages        = {1857--1871},
  publisher    = {Royal Society},
  series       = {Royal Society of London. Philosophical Transactions B. Biological Sciences},
  title        = {Theoretical models of adaptive energy management in small wintering birds},
  url          = {http://dx.doi.org/10.1098/rstb.2006.1812},
  volume       = {362},
  year         = {2007},
}