气候变化领域集成服务门户(CCPortal): Large-scale geographic patterns and environmental and anthropogenic drivers of wetland plant diversity in the Qinghai-Tibet Plateau

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DOI	10.1186/s12862-024-02263-w
	Large-scale geographic patterns and environmental and anthropogenic drivers of wetland plant diversity in the Qinghai-Tibet Plateau
	Li, Yigang; Liu, Fan; Zhou, Yadong; Liu, Xing; Wang, Qingfeng
发表日期	2024
EISSN	2730-7182
起始页码	24
结束页码	1
卷号	24 期号:1
英文摘要	Background The geographic patterns of plant diversity in the Qinghai-Tibet Plateau (QTP) have been widely studied, but few studies have focused on wetland plants. This study quantified the geographic patterns of wetland plant diversity in the QTP through a comprehensive analysis of taxonomic, phylogenetic and functional indices.Methods Based on a large number of floras, monographs, specimens and field survey data, we constructed a comprehensive dataset of 1,958 wetland plant species in the QTP. Species richness (SR), phylogenetic diversity (PD), functional diversity (FD), net relatedness index (NRI) and net functional relatedness index (NFRI) were used to assess the taxonomic, phylogenetic and functional diversity of wetland plants. We explored the relationships between the diversity indices and four categories of environmental variables (i.e. energy-water, climate seasonality, topography and human activities). We used four diversity indices, namely endemic species richness, weighted endemism, phylogenetic endemism and functional endemism, together with the categorical analysis of neo- and paleo-endemism (CANAPE), to identify the endemic centers of wetland plants in the QTP.Results SR, PD and FD were highly consistent and showed a decreasing trend from southeast to northwest, decreasing with increasing elevation. The phylogenetic structure of wetland plant assemblages in most parts of the plateau is mainly clustered. The functional structure of wetland plant assemblages in the southeast of the plateau is overdispersed, while the functional structure of wetland plant assemblages in other areas is clustered. Energy-water and climate seasonality were the two most important categories of variables affecting wetland plant diversity. Environmental variables had a greater effect on the functional structure of wetland plants than on the phylogenetic structure. This study identified seven endemic centres, mainly in the Himalayas and Hengduan Mountains.Conclusions Climate and topography are the main factors determining the geographic distribution of wetland plant diversity at large scales. The majority of grid cells in the QTP with significant phylogenetic endemism were mixed and super-endemism. At large scales, compared to climate and topography, human activities may not have a negative impact on wetland plant diversity in the QTP.
英文关键词	Functional diversity; Wetland plants; Qinghai-Tibet Plateau; Phylogenetic structure; Functional structure; Geographic pattern
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity
WOS类目	Ecology ; Evolutionary Biology ; Genetics & Heredity
WOS记录号	WOS:001237862000001
来源期刊	BMC ECOLOGY AND EVOLUTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288107
作者单位	Hubei Engineering University; Tibet University; Chinese Academy of Sciences; Wuhan Botanical Garden, CAS; Nanchang University; Wuhan University
推荐引用方式 GB/T 7714	Li, Yigang,Liu, Fan,Zhou, Yadong,et al. Large-scale geographic patterns and environmental and anthropogenic drivers of wetland plant diversity in the Qinghai-Tibet Plateau[J],2024,24(1).
APA	Li, Yigang,Liu, Fan,Zhou, Yadong,Liu, Xing,&Wang, Qingfeng.(2024).Large-scale geographic patterns and environmental and anthropogenic drivers of wetland plant diversity in the Qinghai-Tibet Plateau.BMC ECOLOGY AND EVOLUTION,24(1).
MLA	Li, Yigang,et al."Large-scale geographic patterns and environmental and anthropogenic drivers of wetland plant diversity in the Qinghai-Tibet Plateau".BMC ECOLOGY AND EVOLUTION 24.1(2024).