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《Plant Science Journal》 2017-05
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Phylogenetic diversity analysis of the community of extremely small populations of Glyptostrobus pensilis

Chen Yu-Qing;Zhu Shuang-Shuang;Wang Gang-Tao;Wen Xiang-Ying;Huang Xiang-Xu;Zhou Lian-Xuan;Wang Rui-Jiang;Key Laboratory of Plant Resources Conservation and Sustainable Utilization,Guangdong Provincial Key Laboratory of Applied Botany,South China Botanical Garden,Chinese Academy of Sciences;Graduate University of the Chinese Academy of Sciences;  
Glyptostrobus pensilis( Staunton ex D. Don) K. Koch,also called the Chinese swamp cypress or water pine,is a well-known relict plant and "living fossil". It is listed as a"GradeⅠ"wild plant under the state key protected list,and is only known from extremely small populations in South and South-East China,as well as Vietnam and Laos. It is also categorized as"Critically Endangered"with a decreasing trend according to the IUCN evaluation criteria. We investigated the community vegetation,health status,disturbance factors,and alien invasive plants of 42 wild populations of G. pensilis in China in 2016. Community phylogenetic diversity analysis indicated that the health status of the G. pensilis populations was related to the degree of threat of anthropogenic disturbance. In addition, populations with high phylogeneticdiversity values were always in good condition. The presence of alien invasive species in the community will make the phylogenetic structure clustered and result in the decrease of the phylogenetic diversity value. It should be noted,therefore,that the exclusion of anthropogenic activities and elimination of alien invasive plants will improve the health status of populations and individuals, increase the phylogenetic diversity of the community, and enhance the resistance and recoverability of G. pensilis populations.
【Fund】: 广东省林业厅野生动植物保护管理及湿地保护专项资金;; 国际植物园保护联盟全球水松保护项目~~
【CateGory Index】: Q948
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