Chen You-Hua
Department of Zoology, University of British Columbia, Vancouver, V6T 1Z4, Canada;Department of Renewable Resources, University of Alberta, Edmonton, Canada.
Dongwuxue Yanjiu. 2014 Jul;35(4):346-9. doi: 10.13918/j.issn.2095-8137.2014.4.346.
In this brief report, we analyzed ecological correlates of risk of extinction for mammals endemic to China using phylogenetic eigenvector methods to control for the effect of phylogenetic inertia. Extinction risks were based on the International Union for Conservation of Nature (IUCN) Red List and ecological explanatory attributes that include range size and climatic variables. When the effect of phylogenetic inertia were controlled, climate became the best predictor for quantifying and evaluating extinction risks of endemic mammals in China, accounting for 13% of the total variation. Range size seems to play a trivial role, explaining ~1% of total variation; however, when non-phylogenetic variation partitioning analysis was done, the role of range size then explained 7.4% of total variation. Consequently, phylogenetic inertia plays a substantial role in increasing the explanatory power of range size on the extinction risks of mammals endemic to China. Limitations of the present study are discussed, with a focus on under-represented sampling of endemic mammalian species.
在本简要报告中，我们使用系统发育特征向量法分析了中国特有哺乳动物的灭绝风险的生态关联因素，以控制系统发育惯性的影响。灭绝风险基于国际自然保护联盟（IUCN）红色名录以及包括分布范围大小和气候变量在内的生态解释属性。当控制了系统发育惯性的影响后，气候成为量化和评估中国特有哺乳动物灭绝风险的最佳预测因子，占总变异的13%。分布范围大小似乎作用微不足道，解释了约1%的总变异；然而，当进行非系统发育变异划分分析时，分布范围大小的作用则解释了7.4%的总变异。因此，系统发育惯性在提高分布范围大小对中国特有哺乳动物灭绝风险的解释力方面起着重要作用。本文讨论了本研究的局限性，重点关注特有哺乳动物物种代表性不足的抽样情况。
