50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals
Cleary AC, Hoffman J, Forcada J, Lydersen C, Lowther AD, Kovacs KM. 50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals. Ecology and Evolution . 2021: ece3.8104. Ice is one of the most important drivers of population dynamics in polar organisms, influencing the...
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ftubbiepub:oai:pub.uni-bielefeld.de:2957383 2023-05-15T13:34:18+02:00 50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals Cleary, Alison C. Hoffman, Joseph Forcada, Jaume Lydersen, Christian Lowther, Andrew D. Kovacs, Kit M. 2021 https://nbn-resolving.org/urn:nbn:de:0070-pub-29573839 https://pub.uni-bielefeld.de/record/2957383 https://pub.uni-bielefeld.de/download/2957383/2957618 eng eng Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/ece3.8104 info:eu-repo/semantics/altIdentifier/issn/2045-7758 info:eu-repo/semantics/altIdentifier/wos/000694977200001 info:eu-repo/semantics/altIdentifier/pmid/34707834 https://nbn-resolving.org/urn:nbn:de:0070-pub-29573839 https://pub.uni-bielefeld.de/record/2957383 https://pub.uni-bielefeld.de/download/2957383/2957618 https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess CC-BY ddc:570 ddc:590 http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article doc-type:article text 2021 ftubbiepub https://doi.org/10.1002/ece3.8104 2022-02-08T22:37:44Z Cleary AC, Hoffman J, Forcada J, Lydersen C, Lowther AD, Kovacs KM. 50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals. Ecology and Evolution . 2021: ece3.8104. Ice is one of the most important drivers of population dynamics in polar organisms, influencing the locations, sizes, and connectivity of populations. Antarctic fur seals, Arctocephalus gazella, are particularly interesting in this regard, as they are concomitantly reliant on both ice-associated prey and ice-free coastal breeding areas. We reconstructed the history of this species through the Last Glacial Maximum (LGM) using genomic sequence data from seals across their range. Population size trends and divergence events were investigated using continuous-time size estimation analysis and divergence time estimation models. The combined results indicated that a panmictic population present prior to the LGM split into two small refugial populations during peak ice extent. Following ice decline, the western refugial population founded colonies at the South Shetlands, South Georgia, and Bouvetøya, while the eastern refugial population founded the colony on Iles Kerguelen. Postglacial population divergence times closely match geological estimates of when these coastal breeding areas became ice free. Given the predictions regarding continued future warming in polar oceans, these responses of Antarctic fur seals to past climate variation suggest it may be worthwhile giving conservation consideration to potential future breeding locations, such as areas further south along the Antarctic Peninsula, in addition to present colony areas. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Antarctic Peninsula Arctocephalus gazella Bouvetøya PUB - Publications at Bielefeld University Antarctic Antarctic Peninsula Bouvetøya ENVELOPE(3.358,3.358,-54.422,-54.422) Cleary ENVELOPE(161.967,161.967,-76.450,-76.450) Kerguelen The Antarctic Ecology and Evolution |
institution |
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collection |
PUB - Publications at Bielefeld University |
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ftubbiepub |
language |
English |
topic |
ddc:570 ddc:590 |
spellingShingle |
ddc:570 ddc:590 Cleary, Alison C. Hoffman, Joseph Forcada, Jaume Lydersen, Christian Lowther, Andrew D. Kovacs, Kit M. 50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals |
topic_facet |
ddc:570 ddc:590 |
description |
Cleary AC, Hoffman J, Forcada J, Lydersen C, Lowther AD, Kovacs KM. 50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals. Ecology and Evolution . 2021: ece3.8104. Ice is one of the most important drivers of population dynamics in polar organisms, influencing the locations, sizes, and connectivity of populations. Antarctic fur seals, Arctocephalus gazella, are particularly interesting in this regard, as they are concomitantly reliant on both ice-associated prey and ice-free coastal breeding areas. We reconstructed the history of this species through the Last Glacial Maximum (LGM) using genomic sequence data from seals across their range. Population size trends and divergence events were investigated using continuous-time size estimation analysis and divergence time estimation models. The combined results indicated that a panmictic population present prior to the LGM split into two small refugial populations during peak ice extent. Following ice decline, the western refugial population founded colonies at the South Shetlands, South Georgia, and Bouvetøya, while the eastern refugial population founded the colony on Iles Kerguelen. Postglacial population divergence times closely match geological estimates of when these coastal breeding areas became ice free. Given the predictions regarding continued future warming in polar oceans, these responses of Antarctic fur seals to past climate variation suggest it may be worthwhile giving conservation consideration to potential future breeding locations, such as areas further south along the Antarctic Peninsula, in addition to present colony areas. |
format |
Article in Journal/Newspaper |
author |
Cleary, Alison C. Hoffman, Joseph Forcada, Jaume Lydersen, Christian Lowther, Andrew D. Kovacs, Kit M. |
author_facet |
Cleary, Alison C. Hoffman, Joseph Forcada, Jaume Lydersen, Christian Lowther, Andrew D. Kovacs, Kit M. |
author_sort |
Cleary, Alison C. |
title |
50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals |
title_short |
50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals |
title_full |
50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals |
title_fullStr |
50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals |
title_full_unstemmed |
50,000 years of ice and seals: Impacts of the Last Glacial Maximum on Antarctic fur seals |
title_sort |
50,000 years of ice and seals: impacts of the last glacial maximum on antarctic fur seals |
publisher |
Wiley |
publishDate |
2021 |
url |
https://nbn-resolving.org/urn:nbn:de:0070-pub-29573839 https://pub.uni-bielefeld.de/record/2957383 https://pub.uni-bielefeld.de/download/2957383/2957618 |
long_lat |
ENVELOPE(3.358,3.358,-54.422,-54.422) ENVELOPE(161.967,161.967,-76.450,-76.450) |
geographic |
Antarctic Antarctic Peninsula Bouvetøya Cleary Kerguelen The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Bouvetøya Cleary Kerguelen The Antarctic |
genre |
Antarc* Antarctic Antarctic Fur Seals Antarctic Peninsula Arctocephalus gazella Bouvetøya |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Antarctic Peninsula Arctocephalus gazella Bouvetøya |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/ece3.8104 info:eu-repo/semantics/altIdentifier/issn/2045-7758 info:eu-repo/semantics/altIdentifier/wos/000694977200001 info:eu-repo/semantics/altIdentifier/pmid/34707834 https://nbn-resolving.org/urn:nbn:de:0070-pub-29573839 https://pub.uni-bielefeld.de/record/2957383 https://pub.uni-bielefeld.de/download/2957383/2957618 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/ece3.8104 |
container_title |
Ecology and Evolution |
_version_ |
1766051412092911616 |