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

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 资源植物与生物技术所级重点实验室

	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
刊名	ECOLOGICAL MODELLING
	2014-06-24
卷号	282 页码:18-24
关键词	Oxybaphus himalaicus Boerhavia diffusa Ensemble modelling BiodiversityR Climate space
ISSN号	0304-3800
通讯作者	Ranjitkar,S (reprint author),World Agroforestry Ctr East & Cent Asia,Kunming 650204,Peoples R China. ; sailesh@mail.kib.ac.cn
英文摘要	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.
学科主题	Environmental Sciences & Ecology
类目[WOS]	Ecology
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	DISTRIBUTION MODELS ; RANGE SHIFTS ; NICHE ; DISTRIBUTIONS ; CONSERVATION ; IMPROVE ; UNCERTAINTY ; MADAGASCAR ; PREDICTION ; ABUNDANCE
收录类别	SCI
资助信息	National Science Foundation China [31270524]; ICRAF CRP 6.2 program 'Forests, Trees and Agroforestry'
语种	英语
WOS记录号	WOS:000336113500002
公开日期	2014-06-23
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/18151]
专题	昆明植物研究所_资源植物与生物技术所级重点实验室
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.(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.