globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12847
论文题名:
Increasing hydrologic variability threatens depleted anadromous fish populations
作者: Ward E.J.; Anderson J.H.; Beechie T.J.; Pess G.R.; Ford M.J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期:7
起始页码: 2500
结束页码: 2509
语种: 英语
英文关键词: Anadromous fish ; Climate change ; Endangered species ; Environmental variability ; Hydrologic variability ; Salmon ; Winter storms
Scopus关键词: anadromy ; climate change ; climate effect ; endangered species ; hydrological change ; population growth ; river flow ; salmonid ; Pacific Northwest ; Oncorhynchus tshawytscha
英文摘要: Predicting effects of climate change on species and ecosystems depend on understanding responses to shifts in means (such as trends in global temperatures), but also shifts in climate variability. To evaluate potential responses of anadromous fish populations to an increasingly variable environment, we performed a hierarchical analysis of 21 Chinook salmon populations from the Pacific Northwest, examining support for changes in river flows and flow variability on population growth. More than half of the rivers analyzed have already experienced significant increases in flow variability over the last 60 years, and this study shows that this increase in variability in freshwater flows has a more negative effect than any other climate signal included in our model. Climate change models predict that this region will experience warmer winters and more variable flows, which may limit the ability of these populations to recover. © 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/61883
Appears in Collections:影响、适应和脆弱性

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作者单位: Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, United States; Washington Department of Fish and Wildlife, 600 Capitol Way N, Olympia, WA, United States; Fisheries Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, United States

Recommended Citation:
Ward E.J.,Anderson J.H.,Beechie T.J.,et al. Increasing hydrologic variability threatens depleted anadromous fish populations[J]. Global Change Biology,2015-01-01,21(7)
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