DOI: 10.1111/ele.13762
论文题名: Montane species track rising temperatures better in the tropics than in the temperate zone
作者: Freeman B.G. ; Song Y. ; Feeley K.J. ; Zhu K.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 8 起始页码: 1697
结束页码: 1708
语种: 英语
中文关键词: climate change
; elevational gradient
; global warming
; latitudinal gradient
; mountaintop extinction
; range shift
; upslope shift
英文关键词: global warming
; mountain region
; species diversity
; temperate environment
; temperature effect
; tracking
; tropical environment
; climate change
; greenhouse effect
; temperature
; tree
; Climate Change
; Global Warming
; Temperature
; Trees
英文摘要: Many species are responding to global warming by shifting their distributions upslope to higher elevations, but the observed rates of shifts vary considerably among studies. Here, we test the hypothesis that this variation is in part explained by latitude, with tropical species being particularly responsive to warming temperatures. We analyze two independent empirical datasets—shifts in species’ elevational ranges, and changes in composition of forest inventory tree plots. Tropical species are tracking rising temperatures 2.1–2.4 times (range shift dataset) and 10 times (tree plot dataset) better than their temperate counterparts. Models predict that for a 100 m upslope shift in temperature isotherm, species at the equator have shifted their elevational ranges 93–96 m upslope, while species at 45° latitude have shifted only 37–42 m upslope. For tree plots, models predict that a 1°C increase in temperature leads to an increase in community temperature index (CTI), a metric of the average temperature optima of tree species within a plot, of 0.56°C at the equator but no change in CTI at 45° latitude (–0.033°C). This latitudinal gradient in temperature tracking suggests that tropical montane communities may be on an “escalator to extinction” as global temperatures continue to rise. © 2021 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166831
Appears in Collections: 气候变化与战略
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作者单位: Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada; Department of Zoology, University of British Columbia, Vancouver, BC, Canada; Department of Environmental Studies, University of California, Santa Cruz, CA, United States; Department of Biology, University of Miami, Coral Gables, FL 33156, United States
Recommended Citation:
Freeman B.G.,Song Y.,Feeley K.J.,et al. Montane species track rising temperatures better in the tropics than in the temperate zone[J]. Ecology Letters,2021-01-01,24(8)