期刊
AUSTRALIAN JOURNAL OF ZOOLOGY
卷 64, 期 6, 页码 402-412出版社
CSIRO PUBLISHING
DOI: 10.1071/ZO16081
关键词
-
类别
资金
- Bioplatforms Australia
- New South Wales Foundation for National Parks and Wildlife
- Australian Museum Foundation
- New South Wales Environmental Trust
- Bluesfest Music Festival
Habitat loss and fragmentation are key threats to local koala (Phascolarctos cinereus) populations. Broad-scale management is suboptimal for koalas because distribution models are not easily generalised across regions. Therefore, it is imperative that data relevant to local management bodies are available. Genetic data provides important information on gene flow and potential habitat barriers, including anthropogenic disturbances. Little genetic data are available for nationally significant koala populations in north-eastern New South Wales, despite reported declines due to urbanisation and habitat loss. In this study, we develop 14 novel microsatellite loci to investigate koala populations in north-eastern New South Wales (Port Macquarie, Coffs Harbour, Tyagarah, Ballina) and south-eastern Queensland (Coomera). All locations were significantly differentiated (F-ST=0.096-0.213; F'(ST)=0.282-0.582), and this pattern was not consistent with isolation by distance (R-2=0.228, P=0.058). Population assignment clustered the more northern populations (Ballina, Tyagarah and Coomera), suggesting contemporary gene flow among these sites. For all locations, low molecular variation among (16%) rather than within (84%) sites suggests historical connectivity. These results suggest that koala populations in north-eastern New South Wales and south-eastern Queensland are experiencing contemporary impediments to gene flow, and highlight the importance of maintaining habitat connectivity across this region.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据