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Hamilton's rule confronts ideal free habitat selection

Morris, Douglas W.; Lundberg, Per LU and Ripa, Jörgen LU (2001) In Royal Society of London. Proceedings B. Biological Sciences 268(1470). p.921-924
Abstract
If individuals occupy habitats in a way that maximizes their fitness, if they are free to occupy the habitats they choose and if fitness declines with population density, then their abundance across habitats should follow an ideal free distribution. But, if individuals are genetically related, this simple fitness-maximization mechanism breaks down. Habitat occupation should obey Hamiltons rule (natural selection favours traits causing a loss in individual fitness as long as they result in an equal or greater gain in inclusive fitness) and depends more on inclusive fitness than it does on individual fitness.We demonstrate that the resulting inclusive-fitness distribution inflates the population density in habitats of poorer inherent... (More)
If individuals occupy habitats in a way that maximizes their fitness, if they are free to occupy the habitats they choose and if fitness declines with population density, then their abundance across habitats should follow an ideal free distribution. But, if individuals are genetically related, this simple fitness-maximization mechanism breaks down. Habitat occupation should obey Hamiltons rule (natural selection favours traits causing a loss in individual fitness as long as they result in an equal or greater gain in inclusive fitness) and depends more on inclusive fitness than it does on individual fitness.We demonstrate that the resulting inclusive-fitness distribution inflates the population density in habitats of poorer inherent quality, creating pronounced source-sink dynamics.Wealso show that density-dependent habitat selection among relatives reinforces behaviours such as group defence and interspecific territoriality, and that it explains many anomalies in dispersal and foraging. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Royal Society of London. Proceedings B. Biological Sciences
volume
268
issue
1470
pages
921 - 924
publisher
Royal Society
external identifiers
  • wos:000168512700005
  • scopus:0035821113
ISSN
1471-2954
DOI
10.1098/rspb.2001.1597
language
English
LU publication?
yes
id
771cedd2-5a5d-4581-b78c-1e6a4b3a1b81 (old id 131514)
date added to LUP
2007-07-03 14:04:23
date last changed
2018-05-29 10:05:53
@article{771cedd2-5a5d-4581-b78c-1e6a4b3a1b81,
  abstract     = {If individuals occupy habitats in a way that maximizes their fitness, if they are free to occupy the habitats they choose and if fitness declines with population density, then their abundance across habitats should follow an ideal free distribution. But, if individuals are genetically related, this simple fitness-maximization mechanism breaks down. Habitat occupation should obey Hamiltons rule (natural selection favours traits causing a loss in individual fitness as long as they result in an equal or greater gain in inclusive fitness) and depends more on inclusive fitness than it does on individual fitness.We demonstrate that the resulting inclusive-fitness distribution inflates the population density in habitats of poorer inherent quality, creating pronounced source-sink dynamics.Wealso show that density-dependent habitat selection among relatives reinforces behaviours such as group defence and interspecific territoriality, and that it explains many anomalies in dispersal and foraging.},
  author       = {Morris, Douglas W. and Lundberg, Per and Ripa, Jörgen},
  issn         = {1471-2954},
  language     = {eng},
  number       = {1470},
  pages        = {921--924},
  publisher    = {Royal Society},
  series       = {Royal Society of London. Proceedings B. Biological Sciences},
  title        = {Hamilton's rule confronts ideal free habitat selection},
  url          = {http://dx.doi.org/10.1098/rspb.2001.1597},
  volume       = {268},
  year         = {2001},
}