Data from: 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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ftdryad:oai:v1.datadryad.org:10255/dryad.112972 2023-05-15T13:40:12+02:00 Data from: Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal Corrigan, Laura J. Fabiani, Anna Chauke, Lucas F. McMahon, Clive R. de Bruyn, Mark Bester, Marthan N. Bastos, Amanda Campagna, Claudio Muelbert, Monica M.C. Hoelzel, A. Rus Southern Oceans Holocene 2016-04-04T16:58:31Z http://hdl.handle.net/10255/dryad.112972 https://doi.org/10.5061/dryad.q3848 unknown doi:10.5061/dryad.q3848/1 doi:10.1111/jeb.12870 PMID:27012933 doi:10.5061/dryad.q3848 Corrigan LJ, Fabiani A, Chauke LF, McMahon CR, de Bruyn M, Bester MN, Bastos A, Campagna C, Muelbert MMC, Hoelzel AR (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. http://hdl.handle.net/10255/dryad.112972 population genetics evolution pinnipeds molecular ecology Article 2016 ftdryad https://doi.org/10.5061/dryad.q3848 https://doi.org/10.5061/dryad.q3848/1 https://doi.org/10.1111/jeb.12870 2020-01-01T15:33:14Z 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 Dryad Digital Repository (Duke University) Antarctic The Antarctic |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
population genetics evolution pinnipeds molecular ecology |
spellingShingle |
population genetics evolution pinnipeds molecular ecology Corrigan, Laura J. Fabiani, Anna Chauke, Lucas F. McMahon, Clive R. de Bruyn, Mark Bester, Marthan N. Bastos, Amanda Campagna, Claudio Muelbert, Monica M.C. Hoelzel, A. Rus Data from: Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal |
topic_facet |
population genetics evolution pinnipeds molecular ecology |
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, Laura J. Fabiani, Anna Chauke, Lucas F. McMahon, Clive R. de Bruyn, Mark Bester, Marthan N. Bastos, Amanda Campagna, Claudio Muelbert, Monica M.C. Hoelzel, A. Rus |
author_facet |
Corrigan, Laura J. Fabiani, Anna Chauke, Lucas F. McMahon, Clive R. de Bruyn, Mark Bester, Marthan N. Bastos, Amanda Campagna, Claudio Muelbert, Monica M.C. Hoelzel, A. Rus |
author_sort |
Corrigan, Laura J. |
title |
Data from: Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal |
title_short |
Data from: Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal |
title_full |
Data from: Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal |
title_fullStr |
Data from: Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal |
title_full_unstemmed |
Data from: Population differentiation in the context of Holocene climate change for a migratory marine species, the southern elephant seal |
title_sort |
data from: population differentiation in the context of holocene climate change for a migratory marine species, the southern elephant seal |
publishDate |
2016 |
url |
http://hdl.handle.net/10255/dryad.112972 https://doi.org/10.5061/dryad.q3848 |
op_coverage |
Southern Oceans Holocene |
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_relation |
doi:10.5061/dryad.q3848/1 doi:10.1111/jeb.12870 PMID:27012933 doi:10.5061/dryad.q3848 Corrigan LJ, Fabiani A, Chauke LF, McMahon CR, de Bruyn M, Bester MN, Bastos A, Campagna C, Muelbert MMC, Hoelzel AR (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. http://hdl.handle.net/10255/dryad.112972 |
op_doi |
https://doi.org/10.5061/dryad.q3848 https://doi.org/10.5061/dryad.q3848/1 https://doi.org/10.1111/jeb.12870 |
_version_ |
1766130637862862848 |