The intensification of the East Asian winter monsoon contributed to the disappearance of Cedrus (Pinaceae) in southwestern China
| 论文编号: | |||||||||
| 作者: | Su T | ||||||||
| 刊物名称: | Quaternary Research | ||||||||
| 所属学科: | |||||||||
| 论文题目英文: | The intensification of the East Asian winter monsoon contributed to the disappearance of Cedrus (Pinaceae) in southwestern China | ||||||||
| 年: | Aug 2013 | ||||||||
| 卷: | online | ||||||||
| 期: | |||||||||
| 页: | |||||||||
| 联系作者: | Zhou ZK | ||||||||
| 收录类别: | |||||||||
| 影响因子: | 2.204 | ||||||||
| 参与作者: | |||||||||
| 备注: | |||||||||
| 摘要: | Climate change during the Quaternary played an important role in the distribution of extant plants. Herein, cone scales of Cedrus (Pinaceae) were uncovered from the Upper Pliocene Sanying Formation, Longmen Village, Yongping County of Yunnan Province in southwestern China. Detailed comparisons show that these fossils all belong to the genus Cedrus (Pinaceae), and a new species is proposed, Cedrus angusta sp. nov. This find expands the known distribution of Cedrus during the Late Pliocene to Yunnan, where the genus no longer exists in natural forests. Based on the analysis of reconstructed Neogene climate data, we suggest that the intensification of the East Asian winter monsoon during the Quaternary may have dramatically increased seasonality and given rise to a much drier winter in Yunnan. Combined with information on Cedrusfossil records and its seed physiology, we conclude that the intensification of a drier climate after the Late Pliocene may have prevented the survival of Cedrus seedlings, leading to the eventual disappearance ofCedrus in western Yunnan. This study indicates that the topography in southwestern China acted as a vital refuge for many plants during the Quaternary, but that other species gradually disappeared due to the intensification of the monsoonal climate. | ||||||||
| 论文下载: | 下载地址 | ||||||||
| |||||||||
