Elevational patterns of species richness and endemism for some important taxa in the Hengduan Mountains, southwestern China

doi:10.1007/s10531-008-9534-x

	Elevational patterns of species richness and endemism for some important taxa in the Hengduan Mountains, southwestern China
	Zhang, Da-Cai 1,2; Zhang, Yong-Hong 1,2; Boufford, David E.3; Sun, Hang1
通讯作者	boufford@oeb.harvard.edu ; hsun@mail.kib.ac.cn
	2009-03-01
发表期刊	BIODIVERSITY AND CONSERVATION
ISSN	0960-3115
卷号	18 期号:3 页码:699-716
摘要	We describe the elevational patterns of species richness and endemism of some important taxa in the Hengduan Mountains, southwest China. Species richness data came from publications, an online database, herbaria and field work. Species richness was estimated by rarefaction and interpolation. The Hengduan Mountains region was divided into a southern and northern subregion, and all species were assigned to four groups based on their distributional range within this region. The conditional autoregressive model (CAR) was used to relate species richness and explanatory variables. The elevational patterns of total, endemic and non-endemic species richness, at subregion and entire region scales, presented to be unimodal and peaked at similar elevations. Area size was strongly related with species richness, and was more powerful in explaining variation in species richness in the northern subregion than in the southern subregion. A single climatic variable (mean annual rainfall, potential evapotranspiration or moisture index) showed a weak relationship with the elevational pattern of species richness. Area and climatic variables together explained more than 67% of the variation in non-endemic richness, 53% in total richness, and 50% in endemic richness. There were three patterns of endemism at the generic level with increasing elevation: namely endemism increased, decreased, or peaked at middle elevations. All selected taxa have experienced rapid speciation and evolution within this region, which plays an important role in the uniform elevational patterns of total, endemic and non-endemic richness, and in the multiform elevational patterns of endemism.
关键词	Area Basal Taxa Climatic Variables Dispersal Of Species Endemic Species Unimodal Pattern
学科领域	Biodiversity Conservation ; Ecology ; Environmental Sciences
DOI	10.1007/s10531-008-9534-x
收录类别	SCI
语种	英语
WOS记录号	WOS:000263352200013
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/2781
专题	中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Harvard Univ, Cambridge, MA 02138 USA
推荐引用方式 GB/T 7714	Zhang, Da-Cai,Zhang, Yong-Hong,Boufford, David E.,et al. Elevational patterns of species richness and endemism for some important taxa in the Hengduan Mountains, southwestern China[J]. BIODIVERSITY AND CONSERVATION,2009,18(3):699-716.
APA	Zhang, Da-Cai,Zhang, Yong-Hong,Boufford, David E.,&Sun, Hang.(2009).Elevational patterns of species richness and endemism for some important taxa in the Hengduan Mountains, southwestern China.BIODIVERSITY AND CONSERVATION,18(3),699-716.
MLA	Zhang, Da-Cai,et al."Elevational patterns of species richness and endemism for some important taxa in the Hengduan Mountains, southwestern China".BIODIVERSITY AND CONSERVATION 18.3(2009):699-716.

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