Large numbers of vertebrates began rapid population decline in the late 19th century
文献类型：期刊论文
| 作者 | Li HP1,2; Xiang-Yu JG2; Yang ZF2,3; Ryder OA4; Li WH[*]5,6; Fu YX[*]7,8; Zhang YP[*]1,3,7; Dai GY2; Gu ZL2; Chen M2,3 |
| 刊名 | Proceedings of the National Academy of Sciences of the United States of America
 |
| 出版日期 | 2016 |
| 卷号 | 113期号:49页码:14079-14084 |
| 关键词 | coalescent conservation rapid population decline threatened species vertebrate |
| 通讯作者 | wli@uchicago.edu,Yunxin.Fu@uth. tmc.edu,zhangyp@mail.kiz.ac.cn. |
| 英文摘要 | Accelerated losses of biodiversity are a hallmark of the current era. Large declines of population size have been widely observed and currently 22,176 species are threatened by extinction. The time at which a threatened species began rapid population decline (RPD) and the rate of RPD provide important clues about the driving forces of population decline and anticipated extinction time. However, these parameters remain unknown for the vast majority of threatened species. Here we analyzed the genetic diversity data of nuclear and mitochondrial loci of 2,764 vertebrate species and found that the mean genetic diversity is lower in threatened species than in related nonthreatened species. Our coalescence-based modeling suggests that in many threatened species the RPD began ∼123 y ago (a 95% confidence interval of 20-260 y). This estimated date coincides with widespread industrialization and a profound change in global living ecosystems over the past two centuries. On average the population size declined by ∼25% every 10 y in a threatened species, and the population size was reduced to ∼5% of its ancestral size. Moreover, the ancestral size of threatened species was, on average, ∼22% smaller than that of nonthreatened species. Because the time period of RPD is short, the cumulative effect of RPD on genetic diversity is still not strong, so that the smaller ancestral size of threatened species may be the major cause of their reduced genetic diversity; RPD explains 24.1-37.5% of the difference in genetic diversity between threatened and nonthreatened species. |
| 收录类别 | SCI |
| 资助信息 | This work was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences Grant XDB13040800, National Natural Science Foundation of China Grant 91531306, and 973 Project Grant 2012CB316505 (all to H.L., J.X.-Y., G.D., Z.G., C.M., and Z.Y.). This work was also supported in part by Grant nos. 91231120 and 91631304 from the National Natural Science Foundation of China and an endowment from The University of Texas Health Science Cen- ter at Houston (to Y.-X.F.). Y.-P.Z. is supported in part by the Yunnan Pro- vincial Science and Technology Department and the National Natural Science Foundation of China. |
| 语种 | 英语 |
| 源URL | [http://159.226.149.26:8080/handle/152453/10671]  |
| 专题 | 昆明动物研究所_分子进化基因组学 昆明动物研究所_遗传资源与进化国家重点实验室 |
| 作者单位 | 1.State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences (CAS), Kunming 650223, China 2.CAS Key Laboratory of Computational Biology, CAS–Max Planck Society (CAS–MPS) Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, CAS, Shanghai 200031, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.Institute for Conservation Research, San Diego Zoo Global, Escondido, CA 92027 5.Biodiversity Research Center, Academia Sinica, Taipei 11529, Republic of China 6.Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637 7.State Key Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, China 8.Department of Biostatistics and Human Genetics Center, University of Texas Health Science Center at Houston, Houston, TX 77030 |
| 推荐引用方式 GB/T 7714 | Li HP,Xiang-Yu JG,Yang ZF,et al. Large numbers of vertebrates began rapid population decline in the late 19th century[J]. Proceedings of the National Academy of Sciences of the United States of America,2016,113(49):14079-14084. |
| APA | Li HP.,Xiang-Yu JG.,Yang ZF.,Ryder OA.,Li WH[*].,...&Chen M.(2016).Large numbers of vertebrates began rapid population decline in the late 19th century.Proceedings of the National Academy of Sciences of the United States of America,113(49),14079-14084. |
| MLA | Li HP,et al."Large numbers of vertebrates began rapid population decline in the late 19th century".Proceedings of the National Academy of Sciences of the United States of America 113.49(2016):14079-14084. |
入库方式： OAI收割
来源：昆明动物研究所
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