期刊
JOURNAL OF MAMMALOGY
卷 91, 期 1, 页码 200-207出版社
OXFORD UNIV PRESS INC
DOI: 10.1644/09-MAMM-A-098R1.1
关键词
bottleneck effect; density-dependent dispersal; genetic diversity; greater long-tailed hamster; microsatellites; population dynamics; Tscherskia triton
类别
资金
- Ministry of Science and Technology [2005BA529A05]
- Chinese Academy of Sciences [KSCX2-YW-N-06]
- Basic Research Program of the Ministry of Science and Technology [2007CB109100]
Population fluctuations can have a pronounced effect on genetic diversity, behavioral adaptations, and population viability in small mammals. Little is known as to how genetic diversity is associated with population dynamics, and whether genetic ottlenecks or genetic resilience occur in fluctuating populations of small rodents. using DNA microsatellites and 6 years of data. we investigated changes in genetic diversity of the greater long-tailed hamster (Tscherskia triton) at 2 sites in the North China Palm. Genetic diversity was measured as mean number of alleles per locus (N-A), allelic richness (A), expected heterozygosity (H-E), and observed heterozygosity (H-o). Genetic diversity changed rapidly with changes in population density, and the relationship was positive A bottleneck effect was detected only in some low-density years. Our results demonstrate an obvious genetic resilience and capacity for recovery in this species. We discuss this pattern in the context of dispersal and other behaviors of greater long-tailed hamster, and how agriculture-related disturbance affects their genetic diversity DOI: 10.1644/09-MAMM-A-098R1.1
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