Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal.
Understanding observed patterns of connectivity requires an understanding of the evolutionary processes that determine genetic structure among populations, with the most common models being associated with isolation by distance, allopatry or vicariance. Pinnipeds are annual breeders with the capacit...
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:19394 2023-05-15T13:48:01+02:00 Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. Corrigan, L. J. Fabiani, A. Chauke, L. F. McMahon, C. R. de Bruyn, M. Bester, M. N. Bastos, A. Campagna, C. Muelbert, M. M. C. Hoelzel, A. R. 2016-09-01 application/pdf http://dro.dur.ac.uk/19394/ http://dro.dur.ac.uk/19394/1/19394.pdf https://doi.org/10.1111/jeb.12870 unknown Wiley-Blackwell dro:19394 issn:1010-061X issn: 1420-9101 doi:10.1111/jeb.12870 http://dro.dur.ac.uk/19394/ http://dx.doi.org/10.1111/jeb.12870 http://dro.dur.ac.uk/19394/1/19394.pdf This is the accepted version of the following article: Corrigan, L. J., Fabiani, A., Chauke, L. F., McMahon, C. R., de Bruyn, M., Bester, M. N., Bastos, A., Campagna, C., Muelbert, M. M. C. and Hoelzel, A. R. (2016), Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. Journal of Evolutionary Biology. 29(9): 1667-1679, which has been published in final form at http://dx.doi.org/10.1111/jeb.12870. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving. Journal of evolutionary biology, 2016, Vol.29(9), pp.1667-1679 [Peer Reviewed Journal] Article PeerReviewed 2016 ftunivdurham https://doi.org/10.1111/jeb.12870 2020-06-04T22:23:13Z Understanding observed patterns of connectivity requires an understanding of the evolutionary processes that determine genetic structure among populations, with the most common models being associated with isolation by distance, allopatry or vicariance. Pinnipeds are annual breeders with the capacity for extensive range overlap during seasonal migrations, establishing the potential for the evolution of isolation by distance. Here, we assess the pattern of differentiation among six breeding colonies of the southern elephant seal, Mirounga leonina, based on mtDNA and 15 neutral microsatellite DNA markers, and consider measures of their demography and connectivity. We show that all breeding colonies are genetically divergent and that connectivity in this highly mobile pinniped is not strongly associated with geographic distance, but more likely linked to Holocene climate change and demographic processes. Estimates of divergence times between populations were all after the last glacial maximum, and there was evidence for directional migration in a clockwise pattern (with the prevailing current) around the Antarctic. We discuss the mechanisms by which climate change may have contributed to the contemporary genetic structure of southern elephant seal populations and the broader implications. Article in Journal/Newspaper Antarc* Antarctic Elephant Seal Mirounga leonina Southern Elephant Seal Durham University: Durham Research Online Antarctic The Antarctic Journal of Evolutionary Biology 29 9 1667 1679 |
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Open Polar |
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Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
description |
Understanding observed patterns of connectivity requires an understanding of the evolutionary processes that determine genetic structure among populations, with the most common models being associated with isolation by distance, allopatry or vicariance. Pinnipeds are annual breeders with the capacity for extensive range overlap during seasonal migrations, establishing the potential for the evolution of isolation by distance. Here, we assess the pattern of differentiation among six breeding colonies of the southern elephant seal, Mirounga leonina, based on mtDNA and 15 neutral microsatellite DNA markers, and consider measures of their demography and connectivity. We show that all breeding colonies are genetically divergent and that connectivity in this highly mobile pinniped is not strongly associated with geographic distance, but more likely linked to Holocene climate change and demographic processes. Estimates of divergence times between populations were all after the last glacial maximum, and there was evidence for directional migration in a clockwise pattern (with the prevailing current) around the Antarctic. We discuss the mechanisms by which climate change may have contributed to the contemporary genetic structure of southern elephant seal populations and the broader implications. |
format |
Article in Journal/Newspaper |
author |
Corrigan, L. J. Fabiani, A. Chauke, L. F. McMahon, C. R. de Bruyn, M. Bester, M. N. Bastos, A. Campagna, C. Muelbert, M. M. C. Hoelzel, A. R. |
spellingShingle |
Corrigan, L. J. Fabiani, A. Chauke, L. F. McMahon, C. R. de Bruyn, M. Bester, M. N. Bastos, A. Campagna, C. Muelbert, M. M. C. Hoelzel, A. R. Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. |
author_facet |
Corrigan, L. J. Fabiani, A. Chauke, L. F. McMahon, C. R. de Bruyn, M. Bester, M. N. Bastos, A. Campagna, C. Muelbert, M. M. C. Hoelzel, A. R. |
author_sort |
Corrigan, L. J. |
title |
Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. |
title_short |
Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. |
title_full |
Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. |
title_fullStr |
Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. |
title_full_unstemmed |
Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. |
title_sort |
population differentiation in the context of holocene climate change for a migratory marine species, the southern elephant seal. |
publisher |
Wiley-Blackwell |
publishDate |
2016 |
url |
http://dro.dur.ac.uk/19394/ http://dro.dur.ac.uk/19394/1/19394.pdf https://doi.org/10.1111/jeb.12870 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Elephant Seal Mirounga leonina Southern Elephant Seal |
genre_facet |
Antarc* Antarctic Elephant Seal Mirounga leonina Southern Elephant Seal |
op_source |
Journal of evolutionary biology, 2016, Vol.29(9), pp.1667-1679 [Peer Reviewed Journal] |
op_relation |
dro:19394 issn:1010-061X issn: 1420-9101 doi:10.1111/jeb.12870 http://dro.dur.ac.uk/19394/ http://dx.doi.org/10.1111/jeb.12870 http://dro.dur.ac.uk/19394/1/19394.pdf |
op_rights |
This is the accepted version of the following article: Corrigan, L. J., Fabiani, A., Chauke, L. F., McMahon, C. R., de Bruyn, M., Bester, M. N., Bastos, A., Campagna, C., Muelbert, M. M. C. and Hoelzel, A. R. (2016), Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal. Journal of Evolutionary Biology. 29(9): 1667-1679, which has been published in final form at http://dx.doi.org/10.1111/jeb.12870. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving. |
op_doi |
https://doi.org/10.1111/jeb.12870 |
container_title |
Journal of Evolutionary Biology |
container_volume |
29 |
container_issue |
9 |
container_start_page |
1667 |
op_container_end_page |
1679 |
_version_ |
1766248416547962880 |