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

文献类型:期刊论文

AuthorRanjitkar, Sailesh1,2; Xu, Jianchu1,2; Shrestha, Krishna Kumar3; Kindt, Roeland4
SourceECOLOGICAL MODELLING
Issued Date2014-06-24
Volume282Pages:18-24
KeywordOxybaphus himalaicus Boerhavia diffusa Ensemble modelling BiodiversityR Climate space
ISSN0304-3800
Corresponding AuthorRanjitkar,S (reprint author),World Agroforestry Ctr East & Cent Asia,Kunming 650204,Peoples R China. ; sailesh@mail.kib.ac.cn
English AbstractOxybaphus 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.
SubjectEnvironmental Sciences & Ecology
WOS SubjectEcology
WOS Subject ExtendedEnvironmental Sciences & Ecology
WOS Keyword PlusDISTRIBUTION MODELS ; RANGE SHIFTS ; NICHE ; DISTRIBUTIONS ; CONSERVATION ; IMPROVE ; UNCERTAINTY ; MADAGASCAR ; PREDICTION ; ABUNDANCE
SponsorshipNational Science Foundation China [31270524]; ICRAF CRP 6.2 program 'Forests, Trees and Agroforestry'
Indexed TypeSCI
Language英语
WOS IDWOS:000336113500002
Available Date2014-06-23
源URL[http://ir.kib.ac.cn/handle/151853/18151]  
Collection昆明植物研究所_资源植物与生物技术所级重点实验室
Affiliation1.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
Recommended Citation
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.

入库方式: OAI收割

来源:昆明植物研究所

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