Data from: Genetic evidence of a population bottleneck and inbreeding in the endangered New Zealand sea lion, Phocarctos hookeri
The New Zealand sea lion (NZSL) is of high conservation concern due to its limited distribution and its declining population size. Historically it occupied most of coastal New Zealand, but is now restricted to a few coastal sites in southern mainland New Zealand and the sub-Antarctic Islands. NZSLs...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:93945 2023-07-02T03:30:15+02:00 Data from: Genetic evidence of a population bottleneck and inbreeding in the endangered New Zealand sea lion, Phocarctos hookeri Osborne, Amy J. Negro, Sandra S. Chilvers, B. Louise Robertson, Bruce C. Kennedy, Martin A. Gemmell, Neil J. 2016-03-29T15:36:58.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-rk-ugn3 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:93945 unknown doi:10.5061/dryad.s089p/1 doi:10.1093/jhered/esw015 PMID:26995741 http://nbn-resolving.org/urn:nbn:nl:ui:13-rk-ugn3 doi:10.5061/dryad.s089p https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:93945 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 2016 ftdans https://doi.org/10.5061/dryad.s089p/110.1093/jhered/esw01510.5061/dryad.s089p 2023-06-13T12:50:01Z The New Zealand sea lion (NZSL) is of high conservation concern due to its limited distribution and its declining population size. Historically it occupied most of coastal New Zealand, but is now restricted to a few coastal sites in southern mainland New Zealand and the sub-Antarctic Islands. NZSLs have experienced a recent reduction in population size due to sealing in the 1900s, which is expected to have resulted in increased inbreeding and a loss of genetic variation, potentially reducing the evolutionary capacity of the species and negatively impacting on its long-term prospects for survival. We used 17 microsatellite loci, previously shown to have cross-species applications in pinnipeds, to determine locus- and population-specific statistics for 1205 NZSLs from seven consecutive breeding seasons. We show that the NZSL population has a moderate level of genetic diversity in comparison to other pinnipeds. We provide genetic evidence for a population reduction, likely caused by historical sealing, and a measure of allele sharing/parental relatedness (internal relatedness, IR) that is suggestive of increased inbreeding in pups that died during recent epizootic episodes. We hypothesise that population bottlenecks and non-random mating have impacted on the population genetic architecture of NZSLs, affecting its population recovery. Other/Unknown Material Antarc* Antarctic Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Antarctic New Zealand |
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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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ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Osborne, Amy J. Negro, Sandra S. Chilvers, B. Louise Robertson, Bruce C. Kennedy, Martin A. Gemmell, Neil J. Data from: Genetic evidence of a population bottleneck and inbreeding in the endangered New Zealand sea lion, Phocarctos hookeri |
topic_facet |
Life sciences medicine and health care |
description |
The New Zealand sea lion (NZSL) is of high conservation concern due to its limited distribution and its declining population size. Historically it occupied most of coastal New Zealand, but is now restricted to a few coastal sites in southern mainland New Zealand and the sub-Antarctic Islands. NZSLs have experienced a recent reduction in population size due to sealing in the 1900s, which is expected to have resulted in increased inbreeding and a loss of genetic variation, potentially reducing the evolutionary capacity of the species and negatively impacting on its long-term prospects for survival. We used 17 microsatellite loci, previously shown to have cross-species applications in pinnipeds, to determine locus- and population-specific statistics for 1205 NZSLs from seven consecutive breeding seasons. We show that the NZSL population has a moderate level of genetic diversity in comparison to other pinnipeds. We provide genetic evidence for a population reduction, likely caused by historical sealing, and a measure of allele sharing/parental relatedness (internal relatedness, IR) that is suggestive of increased inbreeding in pups that died during recent epizootic episodes. We hypothesise that population bottlenecks and non-random mating have impacted on the population genetic architecture of NZSLs, affecting its population recovery. |
author |
Osborne, Amy J. Negro, Sandra S. Chilvers, B. Louise Robertson, Bruce C. Kennedy, Martin A. Gemmell, Neil J. |
author_facet |
Osborne, Amy J. Negro, Sandra S. Chilvers, B. Louise Robertson, Bruce C. Kennedy, Martin A. Gemmell, Neil J. |
author_sort |
Osborne, Amy J. |
title |
Data from: Genetic evidence of a population bottleneck and inbreeding in the endangered New Zealand sea lion, Phocarctos hookeri |
title_short |
Data from: Genetic evidence of a population bottleneck and inbreeding in the endangered New Zealand sea lion, Phocarctos hookeri |
title_full |
Data from: Genetic evidence of a population bottleneck and inbreeding in the endangered New Zealand sea lion, Phocarctos hookeri |
title_fullStr |
Data from: Genetic evidence of a population bottleneck and inbreeding in the endangered New Zealand sea lion, Phocarctos hookeri |
title_full_unstemmed |
Data from: Genetic evidence of a population bottleneck and inbreeding in the endangered New Zealand sea lion, Phocarctos hookeri |
title_sort |
data from: genetic evidence of a population bottleneck and inbreeding in the endangered new zealand sea lion, phocarctos hookeri |
publishDate |
2016 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-rk-ugn3 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:93945 |
geographic |
Antarctic New Zealand |
geographic_facet |
Antarctic New Zealand |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
doi:10.5061/dryad.s089p/1 doi:10.1093/jhered/esw015 PMID:26995741 http://nbn-resolving.org/urn:nbn:nl:ui:13-rk-ugn3 doi:10.5061/dryad.s089p https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:93945 |
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.s089p/110.1093/jhered/esw01510.5061/dryad.s089p |
_version_ |
1770274480910761984 |