Testing for biases in selection on avian reproductive traits and partitioning direct and indirect selection using quantitative genetic models

dc.contributor.authorReed, Thomas E.
dc.contributor.authorGienapp, Phillip
dc.contributor.authorVisser, Marcel E.
dc.contributor.funderMarine Instituteen
dc.date.accessioned2016-09-14T09:19:23Z
dc.date.available2016-09-14T09:19:23Z
dc.date.issued2016-08-24
dc.date.updated2016-09-12T10:40:56Z
dc.description.abstractKey life history traits such as breeding time and clutch size are frequently both heritable and under directional selection, yet many studies fail to document micro-evolutionary responses. One general explanation is that selection estimates are biased by the omission of correlated traits that have causal effects on fitness, but few valid tests of this exist. Here we show, using a quantitative genetic framework and six decades of life-history data on two free-living populations of great tits Parus major, that selection estimates for egg-laying date and clutch size are relatively unbiased. Predicted responses to selection based on the Robertson-Price Identity were similar to those based on the multivariate breeder’s equation, indicating that unmeasured covarying traits were not missing from the analysis. Changing patterns of phenotypic selection on these traits (for laying date, linked to climate change) therefore reflect changing selection on breeding values, and genetic constraints appear not to limit their independent evolution. Quantitative genetic analysis of correlational data from pedigreed populations can be a valuable complement to experimental approaches to help identify whether apparent associations between traits and fitness are biased by missing traits, and to parse the roles of direct versus indirect selection across a range of environments.en
dc.description.sponsorshipMarine Institute (Sea Change Programme: Beaufort Marine Research Award in Fish Population Genetics)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationReed, T.E., Gienapp, P. and Visser, M.E. (2016) 'Testing for biases in selection on avian reproductive traits and partitioning direct and indirect selection using quantitative genetic models', Evolution. doi:10.1111/evo.13017en
dc.identifier.doi10.1111/evo.13017
dc.identifier.endpage15en
dc.identifier.issn1558-5646
dc.identifier.journaltitleEvolutionen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/3080
dc.language.isoenen
dc.publisherJohn Wiley & Sons, Inc.en
dc.rights© 2016, the Authors. This is the peer reviewed version of the following article: Reed, T.E., Gienapp, P. and Visser, M.E. (2016) 'Testing for biases in selection on avian reproductive traits and partitioning direct and indirect selection using quantitative genetic models', Evolution. doi:10.1111/evo.13017, which has been published in final form at http://dx.doi.org/10.1111/evo.13017. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en
dc.subjectClimate changeen
dc.subjectFitnessen
dc.subjectGenetic correlationen
dc.subjectHeritabilityen
dc.subjectMicroevolutionen
dc.subjectPhenologyen
dc.titleTesting for biases in selection on avian reproductive traits and partitioning direct and indirect selection using quantitative genetic modelsen
dc.typeArticle (peer-reviewed)en
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