Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting

Lancaster, M. L., Arnould, J. P. Y. and Kirkwood, R. 2010, Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting, Animal conservation, vol. 13, no. 3, pp. 247-255, doi: 10.1111/j.1469-1795.2009.00325.x.

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Title Genetic status of an endemic marine mammal, the Australian fur seal, following historical harvesting
Author(s) Lancaster, M. L.
Arnould, J. P. Y.ORCID iD for Arnould, J. P. Y.
Kirkwood, R.
Journal name Animal conservation
Volume number 13
Issue number 3
Start page 247
End page 255
Total pages 9
Publisher Cambridge University Press
Place of publication London, England
Publication date 2010-06
ISSN 1367-9430
Keyword(s) Arctocephalus
fur seal
genetic diversity
population structure
Summary 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.
Language eng
DOI 10.1111/j.1469-1795.2009.00325.x
Field of Research 060207 Population Ecology
060205 Marine and Estuarine Ecology (incl Marine Ichthyology)
Socio Economic Objective 960808 Marine Flora, Fauna and Biodiversity
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2010
Copyright notice ©2009, John Wiley & Sons
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