Frequency and Density-Dependent Selection on Life-History Strategies - A Field Experiment

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Show simple item record Mappes, Tapio Koivula, Minna Koskela, Esa Oksanen, Tuula A. Savolainen, Tiina Sinervo, Barry 2011-05-12T08:23:01Z 2011-05-12T08:23:01Z 2008
dc.identifier.citation Mappes, T., Koivula, M., Koskela, E., Oksanen, T., Savolainen, T. & Sinervo, B. (2008). Frequency and density-dependent selection on life-history strategies - a field experiment. PLoS ONE, 3 (2), e1687.
dc.identifier.issn 1932-6203
dc.description.abstract Negative frequency-dependence, which favors rare genotypes, promotes the maintenance of genetic variability and is of interest as a potential explanation for genetic differentiation. Density-dependent selection may also promote cyclic changes in frequencies of genotypes. Here we show evidence for both density-dependent and negative frequency-dependent selection on opposite life-history tactics (low or high reproductive effort, RE) in the bank vole (Myodes glareolus). Densitydependent selection was evident among the females with low RE, which were especially favored in low densities. Instead, both negative frequency-dependent and density-dependent selection were shown in females with high RE, which were most successful when they were rare in high densities. Furthermore, selection at the individual level affected the frequencies of tactics at the population level, so that the frequency of the rare high RE tactic increased significantly at high densities. We hypothesize that these two selection mechanisms (density- and negative frequency-dependent selection) may promote genetic variability in cyclic mammal populations. Nevertheless, it remains to be determined whether the origin of genetic variance in life-history traits is causally related to density variation (e.g. population cycles). en
dc.language.iso eng
dc.publisher Public Library of Science
dc.relation.ispartofseries PLoS ONE
dc.rights © 2008 Mappes et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.rights openAccess fi
dc.subject.other frequency-dependent selection en
dc.subject.other density dependent selection en
dc.subject.other alternative life-history strategy en
dc.subject.other reproductive costs en
dc.subject.other intra-specific competition en
dc.subject.other frekvenssistä riippuvat valinnat fi
dc.subject.other tiheydestä riippuvat valinnat fi
dc.subject.other vaihtoehtoinen elinkiertostrategia fi
dc.subject.other lisääntymispanostus fi
dc.subject.other lisääntymisen kustannukset fi
dc.subject.other lajin sisäinen kilpailu fi
dc.title Frequency and Density-Dependent Selection on Life-History Strategies - A Field Experiment
dc.type Article
dc.identifier.urn URN:NBN:fi:jyu-2011051210788
dc.subject.kota 118
dc.contributor.laitos Bio- ja ympäristötieteiden laitos fi
dc.contributor.laitos Department of Biological and Environmental Science en
dc.identifier.doi 10.1371/journal.pone.0001687
dc.description.version Publisher's PDF
dc.type.coar journal article
dc.description.reviewStatus peerReviewed
dc.relation.issn 1932-6203
dc.type.version publishedVersion

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