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Sizing up your enemy :
Sizing up your enemy : individual predation vulnerability predicts migratory probability
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- Skov, Christian (författare)
- National Institute of Aquatic Resources, Technical University of Denmark (DTU)
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- Baktoft, Henrik (författare)
- National Institute of Aquatic Resources, Technical University of Denmark (DTU)
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- Brodersen, Jakob (författare)
- Department of Ecology and Evolutionary Ecology, Yale University, New Haven, USA
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- Brönmark, Christer (författare)
- Department of Biology, Lund University
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- Chapman, Ben B. (författare)
- Department of Biology, Lund University
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- Hansson, Lars-Anders (författare)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Department of Biology, Lund University
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- Nilsson, P. Anders, 1968- (författare)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Department of Biology, Lund University
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(creator_code:org_t)
- 2010-10-27
- 2011
- Engelska.
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Ingår i: Proceedings of the Royal Society of London. Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 278, s. 1414-1418
- Relaterad länk:
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http://rspb.royalsoc...
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- Partial migration, in which a fraction of a population migrate and the rest remain resident, occurs in anextensive range of species and can have powerful ecological consequences. The question of what drivesdifferences in individual migratory tendency is a contentious one. It has been shown that the timing ofpartial migration is based upon a trade-off between seasonal fluctuations in predation risk and growthpotential. Phenotypic variation in either individual predation risk or growth potential should thus mediatethe strength of the trade-off and ultimately predict patterns of partial migration at the individual level (i.e.which individuals migrate and which remain resident). We provide cross-population empirical support forthe importance of one component of this model—individual predation risk—in predicting partialmigration in wild populations of bream Abramis brama, a freshwater fish. Smaller, high-risk individualsmigrate with a higher probability than larger, low-risk individuals, and we suggest that predation riskmaintains size-dependent partial migration in this system.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- partial migration
- predation risk
- phenotypic variation
- Abramis brama
- behavioural polymorphism
- Biology
- Biologi
- partial migration
- predation risk
- phenotypic variation
- Abramis brama
- behavioural polymorphism
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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