Uplift-driven diversification in the Hengduan Mountains, a temperate biodiversity hotspot
文献类型：期刊论文
| 作者 | Xing, Yaowu ; Ree, Richard H. |
| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 出版日期 | 2017 |
| 卷号 | 114期号:17页码:E3444-E3451 |
| 关键词 | biogeography vascular plants molecular clocks dispersal speciation |
| 中文摘要 | A common hypothesis for the rich biodiversity found in mountains is uplift-driven diversification-that orogeny creates conditions favoring rapid in situ speciation of resident lineages. We tested this hypothesis in the context of the Qinghai-Tibetan Plateau (QTP) and adjoining mountain ranges, using the phylogenetic and geographic histories of multiple groups of plants to infer the tempo (rate) and mode (colonization versus in situ diversification) of biotic assembly through time and across regions. We focused on the Hengduan Mountains region, which in comparison with the QTP and Himalayas was uplifted more recently (since the late Miocene) and is smaller in area and richer in species. Time-calibrated phylogenetic analyses show that about 8 million y ago the rate of in situ diversification increased in the Hengduan Mountains, significantly exceeding that in the geologically older QTP and Himalayas. By contrast, in the QTP and Himalayas during the same period the rate of in situ diversification remained relatively flat, with colonization dominating lineage accumulation. The Hengduan Mountains flora was thus assembled disproportionately by recent in situ diversification, temporally congruent with independent estimates of orogeny. This study shows quantitative evidence for uplift-driven diversification in this region, and more generally, tests the hypothesis by comparing the rate and mode of biotic assembly jointly across time and space. It thus complements the more prevalent method of examining endemic radiations individually and could be used as a template to augment such studies in other biodiversity hotspots. |
| 语种 | 英语 |
| 公开日期 | 2017-05-11 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/10383]  |
| 专题 | 西双版纳热带植物园_2012年后新成立研究组 |
| 推荐引用方式 GB/T 7714 | Xing, Yaowu,Ree, Richard H.. Uplift-driven diversification in the Hengduan Mountains, a temperate biodiversity hotspot[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(17):E3444-E3451. |
| APA | Xing, Yaowu,&Ree, Richard H..(2017).Uplift-driven diversification in the Hengduan Mountains, a temperate biodiversity hotspot.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(17),E3444-E3451. |
| MLA | Xing, Yaowu,et al."Uplift-driven diversification in the Hengduan Mountains, a temperate biodiversity hotspot".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.17(2017):E3444-E3451. |
入库方式： OAI收割
来源：西双版纳热带植物园
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