globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12111
论文题名:
Climate-associated population declines reverse recovery and threaten future of an iconic high-elevation plant
作者: Krushelnycky P.D.; Loope L.L.; Giambelluca T.W.; Starr F.; Starr K.; Drake D.R.; Taylor A.D.; Robichaux R.H.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期:3
起始页码: 911
结束页码: 922
语种: 英语
英文关键词: Alpine plants ; Argyroxyphium sandwicense ; Biodiversity loss ; Climate change ecology ; Hotspot ; Population declines ; Silversword
Scopus关键词: biodiversity ; climate change ; mortality ; plant ; population decline ; population growth ; altitude ; article ; climate change ; plant ; population dynamics ; Altitude ; Climate Change ; Plants ; Population Dynamics ; Argyroxiphium ; Argyroxiphium sandwicense subsp. macrocephalum
英文摘要: Although climate change is predicted to place mountain-top and other narrowly endemic species at severe risk of extinction, the ecological processes involved in such extinctions are still poorly resolved. In addition, much of this biodiversity loss will likely go unobserved, and therefore largely unappreciated. The Haleakalā silversword is restricted to a single volcano summit in Hawai'i, but is a highly charismatic giant rosette plant that is viewed by 1-2 million visitors annually. We link detailed local climate data to a lengthy demographic record, and combine both with a population-wide assessment of recent plant mortality and recruitment, to show that after decades of strong recovery following successful management, this iconic species has entered a period of substantial climate-associated decline. Mortality has been highest at the lower end of the distributional range, where most silverswords occur, and the strong association of annual population growth rates with patterns of precipitation suggests an increasing frequency of lethal water stress. Local climate data confirm trends toward warmer and drier conditions on the mountain, and signify a bleak outlook for silverswords if these trends continue. The silversword example foreshadows trouble for diversity in other biological hotspots, and illustrates how even well-protected and relatively abundant species may succumb to climate-induced stresses. © 2012 Blackwell Publishing Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62518
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Plant and Environmental Protection Sciences, University of Hawai'i at Manoa, Honolulu, HI 96822, United States; Pacific Island Ecosystems Research Center, US Geological Survey, Honolulu, HI 96813, United States; Department of Geography, University of Hawai'i at Manoa, Honolulu, HI 96822, United States; Pacific Cooperative Studies Unit, University of Hawai'i at Manoa, Honolulu, HI 96822, United States; Department of Botany, University of Hawai'i at Manoa, Honolulu, HI 96822, United States; Department of Biology, University of Hawai'i at Manoa, Honolulu, HI 96822, United States; Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, United States

Recommended Citation:
Krushelnycky P.D.,Loope L.L.,Giambelluca T.W.,et al. Climate-associated population declines reverse recovery and threaten future of an iconic high-elevation plant[J]. Global Change Biology,2013-01-01,19(3)
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