Ensemble forecast of climate suitability for the Trans-Himalayan Nyctaginaceae species

doi:10.1016/j.ecolmodel.2014.03.003

	Ensemble forecast of climate suitability for the Trans-Himalayan Nyctaginaceae species
	Ranjitkar, Sailesh 1,2; Xu, Jianchu1,2 ; Shrestha, Krishna Kumar 3; Kindt, Roeland 4; Ranjitkar,S (reprint author),World Agroforestry Ctr East & Cent Asia,Kunming 650204,Peoples R China.; sailesh@mail.kib.ac.cn
	2014-06-24
发表期刊	ECOLOGICAL MODELLING
ISSN	0304-3800
卷号	282 页码:18-24
摘要	Oxybaphus himalaicus Edgew. (Nyctaginaceae) is the only native species of Oxybaphus occurring outside of the Western Hemisphere. Unfortunately, very little is known about the distribution of this species in Nepal, despite it being endemic to the Trans-Himalayas. In the earlier collections it was mis-identified as another very common Nyctaginaceae species Boerhavia diffusa L We used species distribution modelling technique to determine the climate space of these two species. We used an SDM ensemble method in the BiodiversityR R-package to identified the bioclimatic variable that defines the climate space for B. diffusa and O. himalaicus. Species distributions were modelled using a subset of least correlated variables from bioclimatic data and elevation dataset. The most favourable conditions for B. diffusa were centrally located at well-drained and hot lowlands of Nepal whereas that of O. himalaicus was located in highlands valleys. Discontinuities in suitable climatic conditions coincided with biogeographical barriers associated with topographic transitions. The rising slope of mountains limit the climatic suitability of B. diffusa particularly due to low temperature and high aridity, whereas this condition was suitable for O. himalaicus. But presence of high Himalayas fragmented the suitable climatic condition for this species. We speculate that historic climatic changes associated with changes in the geology of the Himalayas, formed by tectonic forces and sculpted by weathering and erosion, are responsible for the fragmentation of habitat of this species. The extensive study of such a species could provide insight into the history of species colonization in the Himalayas, as well as the potential distribution of Himalayan species. (C) 2014 Elsevier B.V. All rights reserved.
关键词	Oxybaphus Himalaicus Boerhavia Diffusa Ensemble Modelling Biodiversityr Climate Space
学科领域	Environmental Sciences & Ecology
DOI	10.1016/j.ecolmodel.2014.03.003
收录类别	SCI
语种	英语
WOS记录号	WOS:000336113500002
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/18151
专题	资源植物与生物技术所级重点实验室
通讯作者	Ranjitkar,S (reprint author),World Agroforestry Ctr East & Cent Asia,Kunming 650204,Peoples R China.; sailesh@mail.kib.ac.cn
作者单位	1.Kunming Inst Bot, Key Lab Plant Biodivers & Biogeog East Asia KLPB, Kunming 650204, Peoples R China 2.World Agroforestry Ctr East & Cent Asia, Kunming 650204, Peoples R China 3.Tribhuvan Univ, Cent Dept Bot, Kathmandu, Nepal 4.World Agroforestry Ctr, Nairobi, Kenya
推荐引用方式 GB/T 7714	Ranjitkar, Sailesh,Xu, Jianchu,Shrestha, Krishna Kumar,et al. Ensemble forecast of climate suitability for the Trans-Himalayan Nyctaginaceae species[J]. ECOLOGICAL MODELLING,2014,282:18-24.
APA	Ranjitkar, Sailesh,Xu, Jianchu,Shrestha, Krishna Kumar,Kindt, Roeland,Ranjitkar,S ,&sailesh@mail.kib.ac.cn.(2014).Ensemble forecast of climate suitability for the Trans-Himalayan Nyctaginaceae species.ECOLOGICAL MODELLING,282,18-24.
MLA	Ranjitkar, Sailesh,et al."Ensemble forecast of climate suitability for the Trans-Himalayan Nyctaginaceae species".ECOLOGICAL MODELLING 282(2014):18-24.

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