Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou
Wide-ranging mammals face significant conservation threats, and knowledge of the spatial scale of population structure and its drivers is needed to understand processes that maintain diversity in these species. We analysed DNA from 655 Alaskan caribou (Rangifer tarandus granti) from 20 herds that va...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:87365 2023-07-02T03:33:35+02:00 Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou Mager, Karen H. Colson, Kevin E. Groves, Pamela Hundertmark, Kris J. 2014-11-21T06:24:35.000+01:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-dt-rw3m https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:87365 unknown doi:10.5061/dryad.3hp5v/1 doi:10.1111/mec.12999 PMID:25403098 http://nbn-resolving.org/urn:nbn:nl:ui:13-dt-rw3m doi:10.5061/dryad.3hp5v https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:87365 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2014 ftdans https://doi.org/10.5061/dryad.3hp5v/110.1111/mec.1299910.5061/dryad.3hp5v 2023-06-13T13:16:43Z Wide-ranging mammals face significant conservation threats, and knowledge of the spatial scale of population structure and its drivers is needed to understand processes that maintain diversity in these species. We analysed DNA from 655 Alaskan caribou (Rangifer tarandus granti) from 20 herds that vary in population size, used 19 microsatellite loci to document genetic diversity and differentiation in Alaskan caribou, and examined the extent to which genetic differentiation was associated with hypothesized drivers of population subdivision including landscape features, population size and ecotype. We found that Alaskan caribou are subdivided into two hierarchically structured clusters: one group on the Alaska Peninsula containing discrete herds and one large group on the Mainland lacking differentiation between many herds. Population size, geographic distance, migratory ecotype and the Kvichak River at the nexus of the Alaska Peninsula were associated with genetic differentiation. Contrary to previous hypotheses, small Mainland herds were often differentiated genetically from large interconnected herds nearby, and genetic drift coupled with reduced gene flow may explain this pattern. Our results raise the possibility that behaviour helps to maintain genetic differentiation between some herds of different ecotypes. Alaskan caribou show remarkably high diversity and low differentiation over a broad geographic scale. These results increase information for the conservation of caribou and other migratory mammals threatened by population reductions and landscape barriers and may be broadly applicable to understanding the spatial scale and ecological drivers of population structure in widespread species. Other/Unknown Material Rangifer tarandus Alaska Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Open Polar |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Mager, Karen H. Colson, Kevin E. Groves, Pamela Hundertmark, Kris J. Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou |
topic_facet |
Life sciences medicine and health care |
description |
Wide-ranging mammals face significant conservation threats, and knowledge of the spatial scale of population structure and its drivers is needed to understand processes that maintain diversity in these species. We analysed DNA from 655 Alaskan caribou (Rangifer tarandus granti) from 20 herds that vary in population size, used 19 microsatellite loci to document genetic diversity and differentiation in Alaskan caribou, and examined the extent to which genetic differentiation was associated with hypothesized drivers of population subdivision including landscape features, population size and ecotype. We found that Alaskan caribou are subdivided into two hierarchically structured clusters: one group on the Alaska Peninsula containing discrete herds and one large group on the Mainland lacking differentiation between many herds. Population size, geographic distance, migratory ecotype and the Kvichak River at the nexus of the Alaska Peninsula were associated with genetic differentiation. Contrary to previous hypotheses, small Mainland herds were often differentiated genetically from large interconnected herds nearby, and genetic drift coupled with reduced gene flow may explain this pattern. Our results raise the possibility that behaviour helps to maintain genetic differentiation between some herds of different ecotypes. Alaskan caribou show remarkably high diversity and low differentiation over a broad geographic scale. These results increase information for the conservation of caribou and other migratory mammals threatened by population reductions and landscape barriers and may be broadly applicable to understanding the spatial scale and ecological drivers of population structure in widespread species. |
author |
Mager, Karen H. Colson, Kevin E. Groves, Pamela Hundertmark, Kris J. |
author_facet |
Mager, Karen H. Colson, Kevin E. Groves, Pamela Hundertmark, Kris J. |
author_sort |
Mager, Karen H. |
title |
Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou |
title_short |
Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou |
title_full |
Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou |
title_fullStr |
Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou |
title_full_unstemmed |
Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou |
title_sort |
data from: population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, alaskan caribou |
publishDate |
2014 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-dt-rw3m https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:87365 |
genre |
Rangifer tarandus Alaska |
genre_facet |
Rangifer tarandus Alaska |
op_relation |
doi:10.5061/dryad.3hp5v/1 doi:10.1111/mec.12999 PMID:25403098 http://nbn-resolving.org/urn:nbn:nl:ui:13-dt-rw3m doi:10.5061/dryad.3hp5v https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:87365 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.3hp5v/110.1111/mec.1299910.5061/dryad.3hp5v |
_version_ |
1770273588558954496 |