Ensemble forecast of climate suitability for the Trans-Himalayan Nyctaginaceae species
Ranjitkar, Sailesh1,2; Xu, Jianchu1,2; Shrestha, Krishna Kumar3; Kindt, Roeland4; 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
ISSN0304-3800
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
资助信息National Science Foundation China [31270524]; ICRAF CRP 6.2 program 'Forests, Trees and Agroforestry'
学科领域Environmental Sciences & Ecology
DOI10.1016/j.ecolmodel.2014.03.003
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Ecology
WOS记录号WOS:000336113500002
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
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
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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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