globalchange  > 气候变化与战略
DOI: 10.1111/ele.13693
论文题名:
Range dynamics mediated by compensatory life stage responses to experimental climate manipulations
作者: Oldfather M.F.; Koontz M.J.; Doak D.F.; Ackerly D.D.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期:4
起始页码: 772
结束页码: 780
语种: 英语
中文关键词: climate change ; climate manipulations ; IPMs ; population modelling ; range shifts
英文关键词: Ivesia lycopodioides ; climate ; climate change ; population dynamics ; population growth ; Climate ; Climate Change ; Population Dynamics ; Population Growth
英文摘要: The expectations of polar or upslope distributional shifts of species ranges in response to warming climate conditions have been recently questioned. Diverse responses of different life stages to changing temperature and moisture regimes may alter these predicted range dynamics. Furthermore, the climate driver(s) influencing demographic rates, and the contribution of each demographic rate to population growth rate (λ), may shift across a species range. We investigated these demographic effects by experimentally manipulating climate and measuring responses of λ in nine populations spanning the elevation range of an alpine plant (Ivesia lycopodioides). Populations exhibited stable growth rates (λ ~ 1) under naturally wet conditions and declining rates (λ < 1) under naturally dry conditions. However, opposing vital rate responses to experimental heating and watering lead to negligible or negative effects on population stability. These findings indicate that life stage–specific responses to changing climate can disrupt the current relationships between population stability and climate across species ranges. © 2021 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166905
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作者单位: Department of Ecology and Evolutionary Biology, University of Colorado Boulder, Boulder, CO 80309, United States; Department of Integrative Biology, University of California Berkeley, Berkeley, CA 94720, United States; Earth Lab, University of Colorado Boulder, Boulder, CO 80309, United States; Environmental Studies Program, University of Colorado Boulder, Boulder, CO 80309, United States; Department of Environmental Science Policy and Management, University of California Berkeley, Berkeley, CA 94720, United States; Jepson Herbarium, University of California Berkeley, Berkeley, CA 94720, United States

Recommended Citation:
Oldfather M.F.,Koontz M.J.,Doak D.F.,et al. Range dynamics mediated by compensatory life stage responses to experimental climate manipulations[J]. Ecology Letters,2021-01-01,24(4)
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