Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic
Circumpolar polar bear microsatellite datasetPeacock_et_al_2014.xlsx We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades of decline in their sea-ice habitat. We sought to evaluate whether their genetic diversity and structure hav...
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Dryad
2015
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Online Access: | https://doi.org/10.5061/dryad.v2j1r |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::764267703cbeb21c8eae872459a254c3 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
population genetics Mitochondrial DNA hybridization Ursus maritimus phylogeography conservation Ursus arctos polar bear phylogenetics Arctic Holocene climate change Pleistocene Barents Sea Western Hudson Bay Southern Hudson Bay Davis Strait Kara Sea Laptev Sea Southern Beaufort Sea Northern Beaufort Sea Foxe Basin Baffin Bay Norwegian Bay M'Clintock Channel Gulf of Boothia Viscount Melville Chukchi Sea Kane Basin Lancaster Sound East Greenland Life sciences medicine and health care geo envir |
spellingShingle |
population genetics Mitochondrial DNA hybridization Ursus maritimus phylogeography conservation Ursus arctos polar bear phylogenetics Arctic Holocene climate change Pleistocene Barents Sea Western Hudson Bay Southern Hudson Bay Davis Strait Kara Sea Laptev Sea Southern Beaufort Sea Northern Beaufort Sea Foxe Basin Baffin Bay Norwegian Bay M'Clintock Channel Gulf of Boothia Viscount Melville Chukchi Sea Kane Basin Lancaster Sound East Greenland Life sciences medicine and health care geo envir Peacock, Elizabeth Sonsthagen, Sarah A. Obbard, Martyn E. Boltunov, Andrei Regehr, Eric V. Ovsyanikov, Nikita Aars, Jon Atkinson, Stephen N. Sage, George K. Hope, Andrew G. Zeyl, Eve Bachmann, Lutz Ehrich, Dorothee Scribner, Kim T. Amstrup, Steven C. Belikov, Stanislav Born, Erik W. Derocher, Andrew E. Stirling, Ian Taylor, Mitchell K. Wiig, Øystein Paetkau, David Talbot, Sandra L. Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic |
topic_facet |
population genetics Mitochondrial DNA hybridization Ursus maritimus phylogeography conservation Ursus arctos polar bear phylogenetics Arctic Holocene climate change Pleistocene Barents Sea Western Hudson Bay Southern Hudson Bay Davis Strait Kara Sea Laptev Sea Southern Beaufort Sea Northern Beaufort Sea Foxe Basin Baffin Bay Norwegian Bay M'Clintock Channel Gulf of Boothia Viscount Melville Chukchi Sea Kane Basin Lancaster Sound East Greenland Life sciences medicine and health care geo envir |
description |
Circumpolar polar bear microsatellite datasetPeacock_et_al_2014.xlsx We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades of decline in their sea-ice habitat. We sought to evaluate whether their genetic diversity and structure have changed over this period of habitat decline, how their current genetic patterns compare with past patterns, and how genetic demography changed with ancient fluctuations in climate. Characterizing their circumpolar genetic structure using microsatellite data, we defined four clusters that largely correspond to current ecological and oceanographic factors: Eastern Polar Basin, Western Polar Basin, Canadian Archipelago and Southern Canada. We document evidence for recent (ca. last 1–3 generations) directional gene flow from Southern Canada and the Eastern Polar Basin towards the Canadian Archipelago, an area hypothesized to be a future refugium for polar bears as climate-induced habitat decline continues. Our data provide empirical evidence in support of this hypothesis. The direction of current gene flow differs from earlier patterns of gene flow in the Holocene. From analyses of mitochondrial DNA, the Canadian Archipelago cluster and the Barents Sea subpopulation within the Eastern Polar Basin cluster did not show signals of population expansion, suggesting these areas may have served also as past interglacial refugia. Mismatch analyses of mitochondrial DNA data from polar and the paraphyletic brown bear (U. arctos) uncovered offset signals in timing of population expansion between the two species, that are attributed to differential demographic responses to past climate cycling. Mitogenomic structure of polar bears was shallow and developed recently, in contrast to the multiple clades of brown bears. We found no genetic signatures of recent hybridization between the species in our large, circumpolar sample, suggesting that recently observed hybrids represent localized events. Documenting changes in subpopulation ... |
format |
Dataset |
author |
Peacock, Elizabeth Sonsthagen, Sarah A. Obbard, Martyn E. Boltunov, Andrei Regehr, Eric V. Ovsyanikov, Nikita Aars, Jon Atkinson, Stephen N. Sage, George K. Hope, Andrew G. Zeyl, Eve Bachmann, Lutz Ehrich, Dorothee Scribner, Kim T. Amstrup, Steven C. Belikov, Stanislav Born, Erik W. Derocher, Andrew E. Stirling, Ian Taylor, Mitchell K. Wiig, Øystein Paetkau, David Talbot, Sandra L. |
author_facet |
Peacock, Elizabeth Sonsthagen, Sarah A. Obbard, Martyn E. Boltunov, Andrei Regehr, Eric V. Ovsyanikov, Nikita Aars, Jon Atkinson, Stephen N. Sage, George K. Hope, Andrew G. Zeyl, Eve Bachmann, Lutz Ehrich, Dorothee Scribner, Kim T. Amstrup, Steven C. Belikov, Stanislav Born, Erik W. Derocher, Andrew E. Stirling, Ian Taylor, Mitchell K. Wiig, Øystein Paetkau, David Talbot, Sandra L. |
author_sort |
Peacock, Elizabeth |
title |
Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic |
title_short |
Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic |
title_full |
Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic |
title_fullStr |
Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic |
title_full_unstemmed |
Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic |
title_sort |
data from: implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming arctic |
publisher |
Dryad |
publishDate |
2015 |
url |
https://doi.org/10.5061/dryad.v2j1r |
long_lat |
ENVELOPE(-83.999,-83.999,74.218,74.218) ENVELOPE(-63.038,-63.038,-73.952,-73.952) ENVELOPE(-77.918,-77.918,65.931,65.931) ENVELOPE(-94.214,-94.214,57.802,57.802) ENVELOPE(-90.657,-90.657,70.719,70.719) ENVELOPE(-91.535,-91.535,77.584,77.584) ENVELOPE(-102.002,-102.002,72.001,72.001) |
geographic |
Arctic Barents Sea Laptev Sea Hudson Bay Kara Sea Chukchi Sea Baffin Bay Canada Greenland Hudson Lancaster Sound Kane Foxe Basin M'Clintock Gulf of Boothia Norwegian Bay M'Clintock Channel |
geographic_facet |
Arctic Barents Sea Laptev Sea Hudson Bay Kara Sea Chukchi Sea Baffin Bay Canada Greenland Hudson Lancaster Sound Kane Foxe Basin M'Clintock Gulf of Boothia Norwegian Bay M'Clintock Channel |
genre |
Arctic Baffin Bay Baffin Bay Baffin Barents Sea Beaufort Sea brown bear Canadian Archipelago Chukchi Chukchi Sea Climate change Davis Strait East Greenland Foxe Basin Greenland Hudson Bay Kane Basin Kara Sea Lancaster Sound laptev Laptev Sea Norwegian Bay Norwegian Bay Sea ice Ursus arctos Ursus maritimus |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Barents Sea Beaufort Sea brown bear Canadian Archipelago Chukchi Chukchi Sea Climate change Davis Strait East Greenland Foxe Basin Greenland Hudson Bay Kane Basin Kara Sea Lancaster Sound laptev Laptev Sea Norwegian Bay Norwegian Bay Sea ice Ursus arctos Ursus maritimus |
op_source |
10.5061/dryad.v2j1r oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:87175 oai:easy.dans.knaw.nl:easy-dataset:87175 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/dryad.v2j1r http://dx.doi.org/10.5061/dryad.v2j1r |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.v2j1r |
_version_ |
1766336717273432064 |
spelling |
fttriple:oai:gotriple.eu:50|dedup_wf_001::764267703cbeb21c8eae872459a254c3 2023-05-15T15:04:56+02:00 Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic Peacock, Elizabeth Sonsthagen, Sarah A. Obbard, Martyn E. Boltunov, Andrei Regehr, Eric V. Ovsyanikov, Nikita Aars, Jon Atkinson, Stephen N. Sage, George K. Hope, Andrew G. Zeyl, Eve Bachmann, Lutz Ehrich, Dorothee Scribner, Kim T. Amstrup, Steven C. Belikov, Stanislav Born, Erik W. Derocher, Andrew E. Stirling, Ian Taylor, Mitchell K. Wiig, Øystein Paetkau, David Talbot, Sandra L. 2015-10-06 https://doi.org/10.5061/dryad.v2j1r undefined unknown Dryad https://dx.doi.org/10.5061/dryad.v2j1r http://dx.doi.org/10.5061/dryad.v2j1r lic_creative-commons 10.5061/dryad.v2j1r oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:87175 oai:easy.dans.knaw.nl:easy-dataset:87175 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c population genetics Mitochondrial DNA hybridization Ursus maritimus phylogeography conservation Ursus arctos polar bear phylogenetics Arctic Holocene climate change Pleistocene Barents Sea Western Hudson Bay Southern Hudson Bay Davis Strait Kara Sea Laptev Sea Southern Beaufort Sea Northern Beaufort Sea Foxe Basin Baffin Bay Norwegian Bay M'Clintock Channel Gulf of Boothia Viscount Melville Chukchi Sea Kane Basin Lancaster Sound East Greenland Life sciences medicine and health care geo envir Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2015 fttriple https://doi.org/10.5061/dryad.v2j1r 2023-01-22T16:53:37Z Circumpolar polar bear microsatellite datasetPeacock_et_al_2014.xlsx We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades of decline in their sea-ice habitat. We sought to evaluate whether their genetic diversity and structure have changed over this period of habitat decline, how their current genetic patterns compare with past patterns, and how genetic demography changed with ancient fluctuations in climate. Characterizing their circumpolar genetic structure using microsatellite data, we defined four clusters that largely correspond to current ecological and oceanographic factors: Eastern Polar Basin, Western Polar Basin, Canadian Archipelago and Southern Canada. We document evidence for recent (ca. last 1–3 generations) directional gene flow from Southern Canada and the Eastern Polar Basin towards the Canadian Archipelago, an area hypothesized to be a future refugium for polar bears as climate-induced habitat decline continues. Our data provide empirical evidence in support of this hypothesis. The direction of current gene flow differs from earlier patterns of gene flow in the Holocene. From analyses of mitochondrial DNA, the Canadian Archipelago cluster and the Barents Sea subpopulation within the Eastern Polar Basin cluster did not show signals of population expansion, suggesting these areas may have served also as past interglacial refugia. Mismatch analyses of mitochondrial DNA data from polar and the paraphyletic brown bear (U. arctos) uncovered offset signals in timing of population expansion between the two species, that are attributed to differential demographic responses to past climate cycling. Mitogenomic structure of polar bears was shallow and developed recently, in contrast to the multiple clades of brown bears. We found no genetic signatures of recent hybridization between the species in our large, circumpolar sample, suggesting that recently observed hybrids represent localized events. Documenting changes in subpopulation ... Dataset Arctic Baffin Bay Baffin Bay Baffin Barents Sea Beaufort Sea brown bear Canadian Archipelago Chukchi Chukchi Sea Climate change Davis Strait East Greenland Foxe Basin Greenland Hudson Bay Kane Basin Kara Sea Lancaster Sound laptev Laptev Sea Norwegian Bay Norwegian Bay Sea ice Ursus arctos Ursus maritimus Unknown Arctic Barents Sea Laptev Sea Hudson Bay Kara Sea Chukchi Sea Baffin Bay Canada Greenland Hudson Lancaster Sound ENVELOPE(-83.999,-83.999,74.218,74.218) Kane ENVELOPE(-63.038,-63.038,-73.952,-73.952) Foxe Basin ENVELOPE(-77.918,-77.918,65.931,65.931) M'Clintock ENVELOPE(-94.214,-94.214,57.802,57.802) Gulf of Boothia ENVELOPE(-90.657,-90.657,70.719,70.719) Norwegian Bay ENVELOPE(-91.535,-91.535,77.584,77.584) M'Clintock Channel ENVELOPE(-102.002,-102.002,72.001,72.001) |