Plant endemism in the Nepal Himalayas and phytogeographical implications

doi:10.1016/j.pld.2019.04.004

	Plant endemism in the Nepal Himalayas and phytogeographical implications
	Tiwari, Achyut 1,2; Uprety, Yadav 3,4; Rana, Santosh Kumar 5,6
通讯作者	Tiwari, Achyut(achyutone@gmail.com)
	2019-06-01
发表期刊	PLANT DIVERSITY
ISSN	2096-2703
卷号	41 期号:3 页码:174-182
摘要	Nepal is located in the central part of the greater Himalayan range with a unique series of mountain chains formed by recent mountain building geological events. As one of the youngest mountains in the world it contributes to diversity of plants and also provided barriers to and corridors through which plants migrated during the ice ages. The higher altitudinal variation with the high mountains, deep river valleys and lowland plains combine with the effects of the summer monsoon and dry winter result with an extraordinary diversity of ecosystems including flora and fauna in a relatively small land area. The existing checklists for Nepal record some 6000 species of flowering plants and about 530 ferns. However, the botanical experts estimate that numbers may go up to 7000 when the poorly known remote regions are fully explored. The information on plant endemism in Nepal Himalaya is not adequately known as Nepal is still struggling to complete long awaited Flora of Nepal project. Endemic species are confined to specific areas and are the first to be affected by land use and other global changes. We sought to explore the spatial distribution of endemic plant species in Nepal in relation to the consequences associated with climatic and geologic changes over time in the region with the help of published literature. It was found that the endemism showed marked spatial variation between open moist habitat and dry inner valleys, the former with higher endemism. The updated records showed 312 flowering plant species to be endemic to Nepal with higher endemism around the elevation of 3800-4200 m at sea level. The recent human population explosion, intensified deforestation, habitat fragmentation and modern day environmental changes are posing greater threats to endemic plant in Nepal. The conservation status and threats to these peculiar species are unknown. Nevertheless, environmental degradation and high poverty rates create a potent mix of threats to biodiversity in this landscape. Copyright (C) 2019 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.
关键词	Himalaya Topography Endemism
DOI	10.1016/j.pld.2019.04.004
收录类别	SCI
语种	英语
WOS记录号	WOS:000480443600005
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/68374
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
通讯作者	Tiwari, Achyut
作者单位	1.Tribhuvan Univ, Dept Bot, Trichandra Campus, Kathmandu, Nepal 2.Tribhuvan Univ, Cent Dept Bot, Kathmandu, Nepal 3.Tribhuvan Univ, Res Ctr Appl Sci & Technol, Kathmandu, Nepal 4.IUCN, Kathmandu, Nepal 5.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tiwari, Achyut,Uprety, Yadav,Rana, Santosh Kumar. Plant endemism in the Nepal Himalayas and phytogeographical implications[J]. PLANT DIVERSITY,2019,41(3):174-182.
APA	Tiwari, Achyut,Uprety, Yadav,&Rana, Santosh Kumar.(2019).Plant endemism in the Nepal Himalayas and phytogeographical implications.PLANT DIVERSITY,41(3),174-182.
MLA	Tiwari, Achyut,et al."Plant endemism in the Nepal Himalayas and phytogeographical implications".PLANT DIVERSITY 41.3(2019):174-182.

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