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A species in decline: genetic diversity and conservation of the Victorian eastern barred bandicoot, Perameles gunnii

Weeks, Andrew R., van Rooyen, Anthony, Mitrovski, Paul, Heinze, Dean, Winnard, Amy and Miller, Adam D. 2013, A species in decline: genetic diversity and conservation of the Victorian eastern barred bandicoot, Perameles gunnii, Conservation genetics, vol. 14, no. 6, pp. 1243-1254, doi: 10.1007/s10592-013-0512-9.

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Title A species in decline: genetic diversity and conservation of the Victorian eastern barred bandicoot, Perameles gunnii
Author(s) Weeks, Andrew R.
van Rooyen, Anthony
Mitrovski, Paul
Heinze, Dean
Winnard, Amy
Miller, Adam D.ORCID iD for Miller, Adam D. orcid.org/0000-0002-1632-7206
Journal name Conservation genetics
Volume number 14
Issue number 6
Start page 1243
End page 1254
Total pages 12
Publisher Springer
Place of publication Amsterdam, The Netherlands
Publication date 2013-12
ISSN 1566-0621
1572-9737
Keyword(s) Conservation genetics
Microsatellite
Effective population size
Captive breeding program
Summary The eastern barred bandicoot, Perameles gunnii, has undergone a dramatic decline in distribution and abundance on the mainland of Australia during the twentieth century. In 1988 a captive breeding program was initiated to reduce the chance of extinction. With the extinction of the last wild mainland population in the early 1990s, reintroductions from captive-bred P. gunnii have met limited success, and currently only two extant populations persist in predator proof enclosures in the State of Victoria. With ~20 years of breeding, there are concerns that the genetic diversity within the breeding program has declined and may inhibit current and future success of the program. We have used ten nuclear microsatellite loci and sequencing of two partial mitochondrial genes (cytochrome oxidase I and ATPase 6) to determine genetic diversity within current Victorian P. gunnii. These diversity estimates are compared with historic samples from the captive breeding program dating back to 1995, historic samples from the last wild mainland population found at Hamilton in 1992 and contemporary Tasmanian wild populations. Results indicate that the captive P. gunnii population in the State of Victoria has lost significant genetic diversity through time. Genetic diversity is also reduced in populations at Hamilton Community Parklands and Mount Rothwell. Samples from the last wild population at Hamilton collected in 1992, along with samples from Tasmanian P. gunnii, had significantly greater genetic diversity than contemporary mainland populations. The results are discussed with reference to management options for maintaining genetic diversity within Victorian P. gunnii, including crossing Victorian and Tasmanian P. gunnii to increase genetic diversity, adaptability and evolutionary potential.
Language eng
DOI 10.1007/s10592-013-0512-9
Field of Research 050202 Conservation and Biodiversity
060411 Population, Ecological and Evolutionary Genetics
060899 Zoology not elsewhere classified
Socio Economic Objective 969999 Environment not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2013, Springer Science+Business Media
Persistent URL http://hdl.handle.net/10536/DRO/DU:30088770

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