Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting
Genetic variation, and the way in which it is partitioned among populations, has implications for a species’ survival and evolutionary potential. Such information is particularly important for the successful conservation and management of species that have experienced past human impacts and potentia...
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ftdeakinunifig:oai:figshare.com:article/21019930 2023-05-15T16:05:20+02:00 Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting M Lancaster John Arnould R Kirkwood 2010-06-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30031563 https://figshare.com/articles/journal_contribution/Genetic_status_of_an_endemic_marine_mammal_the_Australian_fur_seal_following_historical_harvesting/21019930 unknown http://hdl.handle.net/10536/DRO/DU:30031563 https://figshare.com/articles/journal_contribution/Genetic_status_of_an_endemic_marine_mammal_the_Australian_fur_seal_following_historical_harvesting/21019930 All Rights Reserved Uncategorized Arctocephalus fur seal genetic diversity microsatellite overharvesting population structure Science & Technology Life Sciences & Biomedicine Biodiversity Conservation Ecology Biodiversity & Conservation Environmental Sciences & Ecology ARCTOCEPHALUS-PUSILLUS-DORIFERUS NORTHERN ELEPHANT SEAL POPULATION-STRUCTURE MICROSATELLITE MARKERS DIVERSITY DIFFERENTIATION BOTTLENECK DNA BIOGEOGRAPHY TROPICALIS Text Journal contribution 2010 ftdeakinunifig 2022-11-17T22:31:43Z Genetic variation, and the way in which it is partitioned among populations, has implications for a species’ survival and evolutionary potential. Such information is particularly important for the successful conservation and management of species that have experienced past human impacts and potential losses of genetic diversity. Overharvesting of the Australian fur seal Arctocephalus pusillus doriferus in the 18th and 19th centuries resulted in severe population reductions and elimination of an estimated 17 of 26 colonies. Currently, the subspecies is recovering and c. 20 000 pups are produced annually at 13 colony sites, most of which are situated in Bass Strait in south-eastern Australia. Genetic analysis of samples collected from pups captured at nine colonies revealed no difference in allelic diversity or heterozygosity at five microsatellite loci and no differences in haplotype diversity within a 344 bp region of the mitochondrial DNA control region. There was some evidence for isolation by distance but the program STRUCTURE predicted a single cluster of individuals. Gene flow among colonies appears to be substantial at present, indicating that the Australian fur seal is currently a single, panmictic unit. Other Non-Article Part of Journal/Newspaper Elephant Seal DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Uncategorized Arctocephalus fur seal genetic diversity microsatellite overharvesting population structure Science & Technology Life Sciences & Biomedicine Biodiversity Conservation Ecology Biodiversity & Conservation Environmental Sciences & Ecology ARCTOCEPHALUS-PUSILLUS-DORIFERUS NORTHERN ELEPHANT SEAL POPULATION-STRUCTURE MICROSATELLITE MARKERS DIVERSITY DIFFERENTIATION BOTTLENECK DNA BIOGEOGRAPHY TROPICALIS |
spellingShingle |
Uncategorized Arctocephalus fur seal genetic diversity microsatellite overharvesting population structure Science & Technology Life Sciences & Biomedicine Biodiversity Conservation Ecology Biodiversity & Conservation Environmental Sciences & Ecology ARCTOCEPHALUS-PUSILLUS-DORIFERUS NORTHERN ELEPHANT SEAL POPULATION-STRUCTURE MICROSATELLITE MARKERS DIVERSITY DIFFERENTIATION BOTTLENECK DNA BIOGEOGRAPHY TROPICALIS M Lancaster John Arnould R Kirkwood Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting |
topic_facet |
Uncategorized Arctocephalus fur seal genetic diversity microsatellite overharvesting population structure Science & Technology Life Sciences & Biomedicine Biodiversity Conservation Ecology Biodiversity & Conservation Environmental Sciences & Ecology ARCTOCEPHALUS-PUSILLUS-DORIFERUS NORTHERN ELEPHANT SEAL POPULATION-STRUCTURE MICROSATELLITE MARKERS DIVERSITY DIFFERENTIATION BOTTLENECK DNA BIOGEOGRAPHY TROPICALIS |
description |
Genetic variation, and the way in which it is partitioned among populations, has implications for a species’ survival and evolutionary potential. Such information is particularly important for the successful conservation and management of species that have experienced past human impacts and potential losses of genetic diversity. Overharvesting of the Australian fur seal Arctocephalus pusillus doriferus in the 18th and 19th centuries resulted in severe population reductions and elimination of an estimated 17 of 26 colonies. Currently, the subspecies is recovering and c. 20 000 pups are produced annually at 13 colony sites, most of which are situated in Bass Strait in south-eastern Australia. Genetic analysis of samples collected from pups captured at nine colonies revealed no difference in allelic diversity or heterozygosity at five microsatellite loci and no differences in haplotype diversity within a 344 bp region of the mitochondrial DNA control region. There was some evidence for isolation by distance but the program STRUCTURE predicted a single cluster of individuals. Gene flow among colonies appears to be substantial at present, indicating that the Australian fur seal is currently a single, panmictic unit. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
M Lancaster John Arnould R Kirkwood |
author_facet |
M Lancaster John Arnould R Kirkwood |
author_sort |
M Lancaster |
title |
Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting |
title_short |
Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting |
title_full |
Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting |
title_fullStr |
Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting |
title_full_unstemmed |
Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting |
title_sort |
genetic status of an endemic marine mammal, the australian fur seal, following historical harvesting |
publishDate |
2010 |
url |
http://hdl.handle.net/10536/DRO/DU:30031563 https://figshare.com/articles/journal_contribution/Genetic_status_of_an_endemic_marine_mammal_the_Australian_fur_seal_following_historical_harvesting/21019930 |
genre |
Elephant Seal |
genre_facet |
Elephant Seal |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30031563 https://figshare.com/articles/journal_contribution/Genetic_status_of_an_endemic_marine_mammal_the_Australian_fur_seal_following_historical_harvesting/21019930 |
op_rights |
All Rights Reserved |
_version_ |
1766401235071533056 |