globalchange  > 全球变化的国际研究计划
DOI: 10.1371/journal.pone.0217711
WOS ID: WOS:000482335700008
Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem
Author: Crozier, Lisa G.1; McClure, Michelle M.1,9; Beechie, Tim1; Bograd, Steven J.2; Boughton, David A.3; Carr, Mark4; Cooney, Thomas D.1; Dunham, Jason B.5; Greene, Correigh M.1; Haltuch, Melissa A.1; Hazen, Elliott L.2; Holzer, Damon M.1; Huff, David D.1; Johnson, Rachel C.3,6; Jordan, Chris E.1; Kaplan, Isaac C.1; Lindley, Steven T.3; Mantua, Nathan J.3; Moyle, Peter B.7; Myers, James M.1; Nelson, Mark W.8; Spence, Brian C.3; Weitkamp, Laurie A.1; Williams, Thomas H.3; Willis-Norton, Ellen4
Corresponding Author: Crozier, Lisa G.
Source Publication: PLOS ONE
ISSN: 1932-6203
Publishing Year: 2019
Volume: 14, Issue:7
Language: 英语
WOS Category: Multidisciplinary Sciences
WOS Research Area: Science & Technology - Other Topics
English Abstract:

Major ecological realignments are already occurring in response to climate change. To be successful, conservation strategies now need to account for geographical patterns in traits sensitive to climate change, as well as climate threats to species-level diversity. As part of an effort to provide such information, we conducted a climate vulnerability assessment that included all anadromous Pacific salmon and steelhead (Oncorhynchus spp.) population units listed under the U.S. Endangered Species Act. Using an expert-based scoring system, we ranked 20 attributes for the 28 listed units and 5 additional units. Attributes captured biological sensitivity, or the strength of linkages between each listing unit and the present climate; climate exposure, or the magnitude of projected change in local environmental conditions; and adaptive capacity, or the ability to modify phenotypes to cope with new climatic conditions. Each listing unit was then assigned one of four vulnerability categories. Units ranked most vulnerable overall were Chinook (O. tshawytscha) in the California Central Valley, coho (O. kisutch) in California and southern Oregon, sockeye (O. nerka) in the Snake River Basin, and spring-run Chinook in the interior Columbia and Willamette River Basins. We identified units with similar vulnerability profiles using a hierarchical cluster analysis. Life history characteristics, especially freshwater and estuary residence times, inter played with gradations in exposure from south to north and from coastal to interior regions to generate landscape-level patterns within each species. Nearly all listing units faced high exposures to projected increases in stream temperature, sea surface temperature, and ocean acidification, but other aspects of exposure peaked in particular regions. Anthropogenic factors, especially migration barriers, habitat degradation, and hatchery influence, have reduced the adaptive capacity of most steelhead and salmon populations. Enhancing adaptive capacity is essential to mitigate for the increasing threat of climate change. Collectively, these results provide a framework to support recovery planning that considers climate impacts on the majority of West Coast anadromous salmonids.

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Document Type: 期刊论文
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Affiliation: 1.NOAA, Northwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA 98112 USA
2.NOAA, Southwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Monterey, CA USA
3.NOAA, Southwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Santa Cruz, CA USA
4.Univ Calif Santa Cruz, Dept Ecol & Evolutionary Biol, Santa Cruz, CA 95064 USA
5.US Geol Survey, Forest & Rangeland Ecosyst Sci Ctr, Corvallis, OR USA
6.Univ Calif Davis, Ctr Watershed Sci, Davis, CA 95616 USA
7.Univ Calif Davis, Dept Wildlife Fish & Conservat Biol, Davis, CA 95616 USA
8.ECS Fed Inc, Silver Spring, MD USA
9.Pacific Marine Environm Lab, Seattle, WA USA

Recommended Citation:
Crozier, Lisa G.,McClure, Michelle M.,Beechie, Tim,et al. Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem[J]. PLOS ONE,2019-01-01,14(7)
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