globalchange  > 全球变化的国际研究计划
DOI: 10.1111/ddi.12963
WOS记录号: WOS:000476343200001
论文题名:
Climate change amplifies plant invasion hotspots in Nepal
作者: Shrestha, Uttam Babu1; Shrestha, Bharat Babu2
通讯作者: Shrestha, Bharat Babu
刊名: DIVERSITY AND DISTRIBUTIONS
ISSN: 1366-9516
EISSN: 1472-4642
出版年: 2019
卷: 25, 期:10, 页码:1599-1612
语种: 英语
英文关键词: biological invasions ; climate change ; Himalaya ; invasive species management ; species distribution modelling
WOS关键词: SPECIES DISTRIBUTION MODELS ; SPATIAL AUTOCORRELATION ; BIODIVERSITY HOTSPOTS ; BIOLOGICAL INVASIONS ; NONNATIVE PLANTS ; ALIEN PLANTS ; RISK ; CONSERVATION ; PREDICTION ; FUTURE
WOS学科分类: Biodiversity Conservation ; Ecology
WOS研究方向: Biodiversity & Conservation ; Environmental Sciences & Ecology
英文摘要:

Aim Climate change has increased the risk of biological invasions, particularly by increasing the climatically suitable regions for invasive alien species. The distribution of many native and invasive species has been predicted to change under future climate. We performed species distribution modelling of invasive alien plants (IAPs) to identify hotspots under current and future climate scenarios in Nepal, a country ranked among the most vulnerable countries to biological invasions and climate change in the world. Location Nepal. Methods We predicted climatically suitable niches of 24 out of the total 26 reported IAPs in Nepal under current and future climate (2050 for RCP 6.0) using an ensemble of species distribution models. We also conducted hotspot analysis to highlight the geographic hotspots for IAPs in different climatic zones, land cover, ecoregions, physiography and federal states. Results Under future climate, climatically suitable regions for 75% of IAPs will expand in contrast to a contraction of the climatically suitable regions for the remaining 25% of the IAPs. A high proportion of the modelled suitable niches of IAPs occurred on agricultural lands followed by forests. In aggregation, both extent and intensity (invasion hotspots) of the climatically suitable regions for IAPs will increase in Nepal under future climate scenarios. The invasion hotspots will expand towards the high-elevation mountainous regions. In these regions, land use is rapidly transforming due to the development of infrastructure and expansion of tourism and trade. Main conclusions Negative impacts on livelihood, biodiversity and ecosystem services, as well as economic loss caused by IAPs in the future, may be amplified if preventive and control measures are not immediately initiated. Therefore, the management of IAPs in Nepal should account for the vulnerability of climate change-induced biological invasions into new areas, primarily in the mountains.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/143015
Appears in Collections:全球变化的国际研究计划

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作者单位: 1.Univ Southern Queensland, Inst Life Sci & Environm, Toowoomba, Qld, Australia
2.Tribhuvan Univ, Cent Dept Bot, Kathmandu, Nepal

Recommended Citation:
Shrestha, Uttam Babu,Shrestha, Bharat Babu. Climate change amplifies plant invasion hotspots in Nepal[J]. DIVERSITY AND DISTRIBUTIONS,2019-01-01,25(10):1599-1612
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