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dc.contributor.authorColombelli-Negrel, Diane
dc.date.accessioned2016-12-14T00:58:36Z
dc.date.available2016-12-14T00:58:36Z
dc.date.issued2016-09
dc.identifier.citationColombelli‐Négrel D. Both natural selection and isolation by distance explain phenotypic divergence in bill size and body mass between South Australian little penguin colonies. Ecology and Evolution. 2016;6(22):7965-7975. doi:10.1002/ece3.2516.en
dc.identifier.issn2045-7758
dc.identifier.urihttp://hdl.handle.net/2328/36835
dc.descriptionThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.description.abstractMorphological variation between populations of the same species can arise as a response to genetic variation, local environmental conditions, or a combination of both. In this study, I examined small-scale geographic variation in bill size and body mass in little penguins (Eudyptula minor) across five breeding colonies in South Australia separated by <150 km. To help understand patterns driving the differences, I investigated these variations in relation to environmental parameters (air temperature, sea surface temperature, and water depth) and geographic distances between the colonies. I found substantial morphological variation among the colonies for body mass and bill measurements (except bill length). Colonies further located from each other showed greater morphological divergence overall than adjacent colonies. In addition, phenotypic traits were somewhat correlated to environmental parameters. Birds at colonies surrounded by hotter sea surface temperatures were heavier with longer and larger bills. Birds with larger and longer bills were also found at colonies surrounded by shallower waters. Overall, the results suggest that both environmental factors (natural selection) and interpopulation distances (isolation by distance) are causes of phenotypic differentiation between South Australian little penguin colonies.en
dc.language.isoen
dc.publisherWileyen
dc.rights© 2016 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.subjectadaptationen
dc.subjectconservationen
dc.subjectnatural selectionen
dc.subjectseabirdsen
dc.titleBoth natural selection and isolation by distance explain phenotypic divergence in bill size and body mass between South Australian little penguin coloniesen
dc.typeArticleen
dc.identifier.doihttps://doi.org/10.1002/ece3.2516en
dc.rights.holderThe Authors.en


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