Näytä suppeat kuvailutiedot

dc.contributor.authorMappes, Tapio
dc.contributor.authorKoivula, Minna
dc.contributor.authorKoskela, Esa
dc.contributor.authorOksanen, Tuula A.
dc.contributor.authorSavolainen, Tiina
dc.contributor.authorSinervo, Barry
dc.date.accessioned2011-05-12T08:23:01Z
dc.date.available2011-05-12T08:23:01Z
dc.date.issued2008
dc.identifier.citationMappes, 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.urihttps://jyx.jyu.fi/handle/123456789/26948
dc.description.abstractNegative 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.isoeng
dc.publisherPublic Library of Science
dc.relation.ispartofseriesPLoS ONE
dc.subject.otherfrequency-dependent selectionen
dc.subject.otherdensity dependent selectionen
dc.subject.otheralternative life-history strategyen
dc.subject.otherreproductive costsen
dc.subject.otherintra-specific competitionen
dc.subject.otherfrekvenssistä riippuvat valinnatfi
dc.subject.othertiheydestä riippuvat valinnatfi
dc.subject.othervaihtoehtoinen elinkiertostrategiafi
dc.subject.otherlisääntymispanostusfi
dc.subject.otherlisääntymisen kustannuksetfi
dc.subject.otherlajin sisäinen kilpailufi
dc.titleFrequency and Density-Dependent Selection on Life-History Strategies - A Field Experiment
dc.typeArticle
dc.identifier.urnURN:NBN:fi:jyu-2011051210788
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.identifier.doi10.1371/journal.pone.0001687
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn1932-6203
dc.type.versionpublishedVersion
dc.rights.copyright© 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.accesslevelopenAccessfi
dc.rights.urlhttps://creativecommons.org/licenses/by/2.0/


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Näytä suppeat kuvailutiedot

© 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.
Ellei muuten mainita, aineiston lisenssi on © 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.