Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region, southwest China
Li, Xin-Hui1,2; Zhu, Xin-Xin1,2; Niu, Yang1; Sun, Hang1
Corresponding AuthorSun,H (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Biodivers & Biogeog,Kunming 650201,Peoples R China. ; hsun@mail.kib.ac.cn
2014-05-01
Source PublicationJOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
Volume52Issue:3Pages:280-288
Abstract

To better understand the elevational pattern of phylogenetic structure shown by alpine taxa and the underlying causes, we analyzed the phylogenetic structure of each elevational belt of alpine plants in the Hengduan Mountains Region, measured by net related index (NRI) and net nearest taxon index (NTI). We found both the indices of phylogenetic diversity indicated that alpine plants tended to show phylogenetic overdispersion at low elevational belts, implying that the distribution of alpine plants in these belts was mainly determined by interspecific competition. Alpine plants at higher elevational belts tended to phylogenetic clustering indicated by NRI, and NTI revealed phylogenetic clustering at the belts between 4300m and 5500m, which presumably suggested environment filtering and rapid speciation. Above 5500m, NTI indicated that the phylogenetic structure became random again, perhaps due to the low intensity of filtering and the large distances between plants at the top of the scree slopes. We concluded that phylogenetic structure was, indeed, influenced by the environmental filter, interspecies interaction, rapid speciation during the uplift of the Qinghai-Tibet Plateau, and distance between plants.

KeywordAlpine Plants Environment Filtering Hengduan Mountains Region Interspecific Competition Phylogenetic Structure
Subject AreaPlant Sciences
DOI10.1111/jse.12027
Indexed BySCI
Language英语
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000335400300005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/18135
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Xin-Hui,Zhu, Xin-Xin,Niu, Yang,et al. Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region, southwest China[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2014,52(3):280-288.
APA Li, Xin-Hui,Zhu, Xin-Xin,Niu, Yang,&Sun, Hang.(2014).Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region, southwest China.JOURNAL OF SYSTEMATICS AND EVOLUTION,52(3),280-288.
MLA Li, Xin-Hui,et al."Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region, southwest China".JOURNAL OF SYSTEMATICS AND EVOLUTION 52.3(2014):280-288.
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