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...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2014
|
Subjects: | |
Online Access: | http://hdl.handle.net/10255/dryad.73176 https://doi.org/10.5061/dryad.3hp5v |
id |
ftdryad:oai:v1.datadryad.org:10255/dryad.73176 |
---|---|
record_format |
openpolar |
spelling |
ftdryad:oai:v1.datadryad.org:10255/dryad.73176 2023-05-15T18:04:23+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. Alaska 2014-11-21T05:24:35Z http://hdl.handle.net/10255/dryad.73176 https://doi.org/10.5061/dryad.3hp5v unknown doi:10.5061/dryad.3hp5v/1 doi:10.1111/mec.12999 PMID:25403098 doi:10.5061/dryad.3hp5v Mager KH, Colson KE, Groves P, Hundertmark KJ (2014) Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou. Molecular Ecology 23(24): 6045-6057. http://hdl.handle.net/10255/dryad.73176 Landscape Genetics Microsatellites Population structure Random Forests Article 2014 ftdryad https://doi.org/10.5061/dryad.3hp5v https://doi.org/10.5061/dryad.3hp5v/1 https://doi.org/10.1111/mec.12999 2020-01-01T15:12:56Z 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. Article in Journal/Newspaper Rangifer tarandus Alaska Dryad Digital Repository (Duke University) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Landscape Genetics Microsatellites Population structure Random Forests |
spellingShingle |
Landscape Genetics Microsatellites Population structure Random Forests 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 |
Landscape Genetics Microsatellites Population structure Random Forests |
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. |
format |
Article in Journal/Newspaper |
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://hdl.handle.net/10255/dryad.73176 https://doi.org/10.5061/dryad.3hp5v |
op_coverage |
Alaska |
genre |
Rangifer tarandus Alaska |
genre_facet |
Rangifer tarandus Alaska |
op_relation |
doi:10.5061/dryad.3hp5v/1 doi:10.1111/mec.12999 PMID:25403098 doi:10.5061/dryad.3hp5v Mager KH, Colson KE, Groves P, Hundertmark KJ (2014) Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou. Molecular Ecology 23(24): 6045-6057. http://hdl.handle.net/10255/dryad.73176 |
op_doi |
https://doi.org/10.5061/dryad.3hp5v https://doi.org/10.5061/dryad.3hp5v/1 https://doi.org/10.1111/mec.12999 |
_version_ |
1766175751655129088 |