Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range
Background: The northern fur seal (Callorhinus ursinus; NFS) is a widely distributed pinniped that has been shown to exhibit a high degree of philopatry to islands, breeding areas on an island, and even to specific segments of breeding areas. This level of philopatry could conceivably lead to highly...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.354.2252 2023-05-15T18:49:37+02:00 Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range Bobette R. Dickerson Rolf R. Ream Sacha N. Vignieri Paul Bentzen The Pennsylvania State University CiteSeerX Archives 2009 application/zip http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.354.2252 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.354.2252 Metadata may be used without restrictions as long as the oai identifier remains attached to it. ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/a3/de/PLoS_One_2010_May_17_5(5)_e10671.tar.gz text 2009 ftciteseerx 2016-01-08T00:29:22Z Background: The northern fur seal (Callorhinus ursinus; NFS) is a widely distributed pinniped that has been shown to exhibit a high degree of philopatry to islands, breeding areas on an island, and even to specific segments of breeding areas. This level of philopatry could conceivably lead to highly genetically divergent populations. However, northern fur seals have the potential for dispersal across large distances and have experienced repeated rapid population expansions following glacial retreat and the more recent cessation of intensive harvest pressure. Methodology/Principal Findings: Using microsatellite and mitochondrial loci, we examined population structure in NFS throughout their range. We found only weak population genetic structure among breeding islands including significant FST and W ST values between eastern and western Pacific islands. Conclusions: We conclude that insufficient time since rapid population expansion events (both post glacial and following the cessation of intense harvest pressure) mixed with low levels of contemporary migration have resulted in an absence of genetic structure across the entire northern fur seal range. Text Callorhinus ursinus Northern fur seal Unknown Pacific |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
Background: The northern fur seal (Callorhinus ursinus; NFS) is a widely distributed pinniped that has been shown to exhibit a high degree of philopatry to islands, breeding areas on an island, and even to specific segments of breeding areas. This level of philopatry could conceivably lead to highly genetically divergent populations. However, northern fur seals have the potential for dispersal across large distances and have experienced repeated rapid population expansions following glacial retreat and the more recent cessation of intensive harvest pressure. Methodology/Principal Findings: Using microsatellite and mitochondrial loci, we examined population structure in NFS throughout their range. We found only weak population genetic structure among breeding islands including significant FST and W ST values between eastern and western Pacific islands. Conclusions: We conclude that insufficient time since rapid population expansion events (both post glacial and following the cessation of intense harvest pressure) mixed with low levels of contemporary migration have resulted in an absence of genetic structure across the entire northern fur seal range. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Bobette R. Dickerson Rolf R. Ream Sacha N. Vignieri Paul Bentzen |
spellingShingle |
Bobette R. Dickerson Rolf R. Ream Sacha N. Vignieri Paul Bentzen Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range |
author_facet |
Bobette R. Dickerson Rolf R. Ream Sacha N. Vignieri Paul Bentzen |
author_sort |
Bobette R. Dickerson |
title |
Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range |
title_short |
Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range |
title_full |
Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range |
title_fullStr |
Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range |
title_full_unstemmed |
Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range |
title_sort |
population structure as revealed by mtdna and microsatellites in northern fur seals, callorhinus ursinus, throughout their range |
publishDate |
2009 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.354.2252 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Callorhinus ursinus Northern fur seal |
genre_facet |
Callorhinus ursinus Northern fur seal |
op_source |
ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/a3/de/PLoS_One_2010_May_17_5(5)_e10671.tar.gz |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.354.2252 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766243227493466112 |