Spatial Patterns of Species Diversity and Phylogenetic Structure of Plant Communities in the Tianshan Mountains, Arid Central Asia

doi:10.1242/jcs.207738

	Spatial Patterns of Species Diversity and Phylogenetic Structure of Plant Communities in the Tianshan Mountains, Arid Central Asia
	Zhang, Hong-Xiang ; Zhang, Ming-Li
	2017
发表期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
卷号	8
摘要	The Tianshan Mountains, located in arid Central Asia, have a humid climate and are biodiversity hotspots. Here, we aimed to clarify whether the pattern of species diversity and the phylogenetic structure of plant communities is affected by environmental variables and glacial refugia. In this study, plant community assemblies of 17 research sites with a total of 35 sample plots were investigated at the grassland/ woodland boundaries on the Tianshan Mountains. Community phylogeny of these plant communities was constructed based on two plant DNA barcode regions. The indices of phylogenetic diversity and phylogenetic community structure were calculated for these sample plots. We first estimated the correlation coefficients between species richness (SR) and environmental variables as well as the presence of glacial refugia. We then mapped the significant values of indices of community phylogeny (PD, RPD, NRI, and NTI) to investigate the correlation between community phylogeny and environmental structure or macrozones in the study area. The results showed that a significantly higher value of SR was obtained for the refugial groups than for the colonizing groups (P < 0.05); presence of refugia and environmental variables were highly correlated to the pattern of variation in SR. Indices of community phylogeny were not significantly different between refugial and colonizing regions. Comparison with the humid western part showed that plant communities in the arid eastern part of the Tianshan Mountains tended to display more significant phylogenetic overdispersion. The variation tendency of the PhyloSor index showed that the increase in macro-geographical and environmental distance did not influence obvious phylogenetic dissimilarities between different sample plots. In conclusion, glacial refugia and environmental factors profoundly influenced the pattern of SR, but community phylogenetic structure was not affected by glacial refugia among different plant communities on the Tianshan Mountains. This pattern of community phylogenetic structure could have resulted from shared ancestry and species pool among these sample plots.
关键词	community phylogeny environmental gradients glacial refugia phylogenetic diversity phylogenetic community structure the Tianshan Mountains
学科领域	Cell Biology
DOI	10.1242/jcs.207738
收录类别	SCI
语种	英语
WOS关键词	ELEVATIONAL GRADIENT ; GENETIC-STRUCTURE ; CLIMATE-CHANGE ; FOREST ; BIODIVERSITY ; REFUGIA ; EVOLUTIONARY ; ENDEMISM
WOS记录号	WOS:000417108800006
出版者	FRONTIERS MEDIA SA
文献子类	Article
出版地	LAUSANNE
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31500271] ; CASChinese Academy of Sciences [XBBS-2014-18] ; Chinese Academy of SciencesChinese Academy of Sciences [ZSSD-012]
作者邮箱	zhangml@ibcas.ac.cn
作品OA属性	hybrid
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/22268
专题	系统与进化植物学国家重点实验室
作者单位	1.[Zhang, Hong-Xiang 2.Chinese Acad Sci, Key Lab Biogeog & Bioresource Arid Land, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China 3.Chinese Acad Sci, Inst Bot, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hong-Xiang,Zhang, Ming-Li. Spatial Patterns of Species Diversity and Phylogenetic Structure of Plant Communities in the Tianshan Mountains, Arid Central Asia[J]. FRONTIERS IN PLANT SCIENCE,2017,8.
APA	Zhang, Hong-Xiang,&Zhang, Ming-Li.(2017).Spatial Patterns of Species Diversity and Phylogenetic Structure of Plant Communities in the Tianshan Mountains, Arid Central Asia.FRONTIERS IN PLANT SCIENCE,8.
MLA	Zhang, Hong-Xiang,et al."Spatial Patterns of Species Diversity and Phylogenetic Structure of Plant Communities in the Tianshan Mountains, Arid Central Asia".FRONTIERS IN PLANT SCIENCE 8(2017).

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