التفاصيل البيبلوغرافية
| العنوان: |
Delineation of conservation units in an endangered marsupial, the southern brown bandicoot (Isoodon obesulus obesulus), in South Australia/western Victoria, Australia. |
| المؤلفون: |
You Li, Lancaster, Melanie L., Carthew, Susan M., Packer, Jasmin G., Cooper, Steven J. B. |
| المصدر: |
Australian Journal of Zoology; 2014, Vol. 62 Issue 5, p345-359, 15p, 7 Charts |
| مصطلحات موضوعية: |
ENDANGERED species, WILDLIFE research, SOUTHERN brown bandicoot, ANIMAL genetics research, MICROSATELLITE repeats, MOUNT Lofty Ranges (S. Aust.) |
| مصطلحات جغرافية: |
FLEURIEU Peninsula (S. Aust.), KANGAROO Island (S. Aust.) |
| مستخلص: |
Conservation programs for threatened species are greatly benefiting from genetic data, for their power in providing knowledge of dispersal/gene flow across fragmented landscapes and for identifying populations of high conservation value. The endangered southern brown bandicoot (Isoodon obesulus obesulus) has a disjunct distribution range in South Australia, raising the possibility that populations of the subspecies may represent distinct conservation units. In the current study, we used a combination of 14 microsatellite and two mitochondrial sequence markers to investigate the phylogeography and population structure of I. o. obesulus in South Australia and south-western Victoria, with the aim of identifying any potential evolutionarily significant units and management units relevant to conservation management. Our phylogenetic/population analyses supported the presence of two distinct evolutionary lineages of I. o. obesulus. The first lineage comprised individuals from the Mount Lofty Ranges, Fleurieu Peninsula and Kangaroo Island. A second lineage comprised individuals from the south-east of South Australia and south-western Victoria. We propose that these two lineages represent distinct evolutionarily significant units and should be managed separately for conservation purposes. The findings also raise significant issues for the national conservation status of I. o. obesulus and suggest that the current subspecies classification needs further investigation. The southern brown bandicoot, Isoodon obesulus obesulus, has experienced a dramatic decline in Australia and is listed as nationally endangered. Using genetic analyses of the subspecies from South Australia and south-western Victoria, we show this subspecies comprises multiple evolutionarily significant units and management units that are important for its conservation management. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
