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题名: Experimental warming causes large and rapid species loss, dampened by simulated grazing, on the Tibetan Plateau
作者: Klein, JA; Harte, J; Zhao, XQ
刊名: ECOLOGY LETTERS
出版日期: 2004-12-01
卷号: 7, 期号:12, 页码:1170-1179
关键词: alpine ; biodiversity ; climate warming ; global change ; grazing ; rangelands ; species richness ; Tibetan Plateau
学科分类: 生物科学
文章类型: Article
中文摘要: We investigated the independent and combined effects of experimental warming and grazing on plant species diversity on the north-eastern Tibetan Plateau, a region highly vulnerable to ongoing climate and land use changes. Experimental warming caused a 26-36% decrease in species richness, a response that was generally dampened by experimental grazing. Higher species losses occurred at the drier sites where N was less available. Moreover, we observed an indirect effect of climate change on species richness as mediated by plant-plant interactions. Heat stress and warming-induced litter accumulation are potential explanations for the species' responses to experimental warming. This is the first reported experimental evidence that climate warming could cause dramatic declines in plant species diversity in high elevation ecosystems over short time frames and supports model predictions of species losses with anthropogenic climate change.
英文摘要: We investigated the independent and combined effects of experimental warming and grazing on plant species diversity on the north-eastern Tibetan Plateau, a region highly vulnerable to ongoing climate and land use changes. Experimental warming caused a 26-36% decrease in species richness, a response that was generally dampened by experimental grazing. Higher species losses occurred at the drier sites where N was less available. Moreover, we observed an indirect effect of climate change on species richness as mediated by plant-plant interactions. Heat stress and warming-induced litter accumulation are potential explanations for the species' responses to experimental warming. This is the first reported experimental evidence that climate warming could cause dramatic declines in plant species diversity in high elevation ecosystems over short time frames and supports model predictions of species losses with anthropogenic climate change.
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Ecology
研究领域[WOS]: Environmental Sciences & Ecology
关键词[WOS]: CLIMATE-CHANGE ; GRASSLAND DIVERSITY ; ELEVATED CO2 ; TEMPERATURE ; RESPONSES ; RICHNESS ; TUNDRA ; PLANTS ; SOIL ; BIODIVERSITY
收录类别: SCI
语种: 英语
WOS记录号: WOS:000225078000007
Citation statistics:
内容类型: 期刊论文
URI标识: http://210.75.249.4/handle/363003/1385
Appears in Collections:中国科学院西北高原生物研究所_期刊论文

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作者单位: 1.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Div Ecosyst Sci, Berkeley, CA 94720 USA
2.Chinese Acad Sci, NW Plateau Inst Biol, Xining, Qinghai, Peoples R China

Recommended Citation:
Klein Julia A, Harte John, Zhao Xinquan.Experimental warming causes large and rapid species loss, dampened by simulated grazing, on the Tibetan Plateau.ECOLOGY LETTERS,2004,7(12):1170-1179
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