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dc.contributor.authorFrentiu, F.en_US
dc.contributor.authorClegg, S.en_US
dc.contributor.authorBlows, M.en_US
dc.contributor.authorF Owens, I.en_US
dc.date.accessioned2017-05-03T15:53:31Z
dc.date.available2017-05-03T15:53:31Z
dc.date.issued2007en_US
dc.date.modified2011-05-30T06:56:33Z
dc.identifier.issn1010061Xen_US
dc.identifier.doi10.1111/j.1420-9101.2006.01242.xen_AU
dc.identifier.urihttp://hdl.handle.net/10072/38873
dc.description.abstractIsland races of passerine birds display repeated evolution towards larger body size compared with their continental ancestors. The Capricorn silvereye (Zosterops lateralis chlorocephalus) has become up to six phenotypic standard deviations bigger in several morphological measures since colonization of an island approximately 4000 years ago. We estimated the genetic variance-covariance (G) matrix using full-sib and 'animal model' analyses, and selection gradients, for six morphological traits under field conditions in three consecutive cohorts of nestlings. Significant levels of genetic variance were found for all traits. Significant directional selection was detected for wing and tail lengths in one year and quadratic selection on culmen depth in another year. Although selection gradients on many traits were negative, the predicted evolutionary response to selection of these traits for all cohorts was uniformly positive. These results indicate that the G matrix and predicted evolutionary responses are consistent with those of a population evolving in the manner observed in the island passerine trend, that is, towards larger body size.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherWiley-Blackwell Publishing Ltd.en_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom639en_US
dc.relation.ispartofpageto649en_US
dc.relation.ispartofissue2en_US
dc.relation.ispartofjournalJournal of Evolutionary Biologyen_US
dc.relation.ispartofvolume20en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchQuantitative Genetics (incl. Disease and Trait Mapping Genetics)en_US
dc.subject.fieldofresearchBiological Adaptationen_US
dc.subject.fieldofresearchcode060412en_US
dc.subject.fieldofresearchcode060303en_US
dc.titleLarge body size in an island-dwelling bird: a microevolutionary analysisen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2007
gro.hasfulltextNo Full Text


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