globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12991
论文题名:
Northward displacement of optimal climate conditions for ecotypes of Eriophorum vaginatum L. across a latitudinal gradient in Alaska
作者: Mcgraw J.B.; Turner J.B.; Souther S.; Bennington C.C.; Vavrek M.C.; Shaver G.R.; Fetcher N.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期:10
起始页码: 3827
结束页码: 3835
语种: 英语
英文关键词: Eriophorum vaginatum ; Adaptational lag ; Alaska ; Climate change ; Ecotype ; Latitudinal gradient
Scopus关键词: adaptation ; climate change ; climate conditions ; ecotype ; fitness ; grass ; growth rate ; latitudinal gradient ; Alaska ; United States ; Eriophorum vaginatum ; adaptation ; Alaska ; climate change ; Cyperaceae ; growth, development and aging ; physiology ; plant dispersal ; plant root ; population growth ; Adaptation, Physiological ; Alaska ; Climate Change ; Cyperaceae ; Plant Dispersal ; Plant Roots ; Population Growth
英文摘要: Plants are often genetically specialized as ecotypes attuned to local environmental conditions. When conditions change, the optimal environment may be physically displaced from the local population, unless dispersal or in situ evolution keep pace, resulting in a phenomenon called adaptational lag. Using a 30-year-old reciprocal transplant study across a 475 km latitudinal gradient, we tested the adaptational lag hypothesis by measuring both short-term (tiller population growth rates) and long-term (17-year survival) fitness components of Eriophorum vaginatum ecotypes in Alaska, where climate change may have already displaced the optimum. Analyzing the transplant study as a climate transfer experiment, we showed that the climate optimum for plant performance was displaced ca. 140 km north of home sites, although plants were not generally declining in size at home sites. Adaptational lag is expected to be widespread globally for long-lived, ecotypically specialized plants, with disruptive consequences for communities and ecosystems. © 2015 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/61734
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Biology, West Virginia University, P. O. Box 6057, Morgantown, WV, United States; Department of Biology, West Virginia Wesleyan, Buckhannon, WV, United States; Department of Biology, Stetson University, DeLand, FL, United States; Department of Land Resources, Glenville State University, Glenville, WV, United States; The Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA, United States; Institute for Environmental Science and Sustainability, Wilkes University, Wilkes-Barre, PA, United States

Recommended Citation:
Mcgraw J.B.,Turner J.B.,Souther S.,et al. Northward displacement of optimal climate conditions for ecotypes of Eriophorum vaginatum L. across a latitudinal gradient in Alaska[J]. Global Change Biology,2015-01-01,21(10)
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