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dc.contributor.authorKentie, Rosemarie
dc.contributor.authorClegg, Sonya M
dc.contributor.authorTuljapurkar, Shripad
dc.contributor.authorGaillard, Jean-Michel
dc.contributor.authorCoulson, Tim
dc.date.accessioned2020-08-06T00:19:43Z
dc.date.available2020-08-06T00:19:43Z
dc.date.issued2020
dc.identifier.issn1461-023X
dc.identifier.doi10.1111/ele.13470
dc.identifier.urihttp://hdl.handle.net/10072/396235
dc.description.abstractFluctuating population density in stochastic environments can contribute to maintain life‐history variation within populations via density‐dependent selection. We used individual‐based data from a population of Soay sheep to examine variation in life‐history strategies at high and low population density. We incorporated life‐history trade‐offs among survival, reproduction and body mass growth into structured population models and found support for the prediction that different life‐history strategies are optimal at low and high population densities. Shorter generation times and lower asymptotic body mass were selected for in high‐density environments even though heavier individuals had higher probabilities to survive and reproduce. In contrast, greater asymptotic body mass and longer generation times were optimal at low population density. If populations fluctuate between high density when resources are scarce, and low densities when they are abundant, the variation in density will generate fluctuating selection for different life‐history strategies, that could act to maintain life‐history variation.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherWiley
dc.relation.ispartofpagefrom811
dc.relation.ispartofpageto820
dc.relation.ispartofissue5
dc.relation.ispartofjournalEcology Letters
dc.relation.ispartofvolume23
dc.subject.fieldofresearchZoology
dc.subject.fieldofresearchEcological applications
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchEvolutionary biology
dc.subject.fieldofresearchcode3109
dc.subject.fieldofresearchcode4102
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode3104
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsdensity dependence
dc.subject.keywordsEnvironmental Sciences
dc.titleLife-history strategy varies with the strength of competition in a food-limited ungulate population
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationKentie, R; Clegg, SM; Tuljapurkar, S; Gaillard, J-M; Coulson, T, Life-history strategy varies with the strength of competition in a food-limited ungulate population, Ecology Letters, 2020, 23 (5), pp. 811-820
dcterms.dateAccepted2020-01-13
dc.date.updated2020-08-06T00:17:53Z
gro.hasfulltextNo Full Text
gro.griffith.authorClegg, Sonya


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