Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem.
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 suc...
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ftcdlib:oai:escholarship.org/ark:/13030/qt2195z60q 2023-05-15T17:52:09+02:00 Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem. Crozier, Lisa G McClure, Michelle M Beechie, Tim Bograd, Steven J Boughton, David A Carr, Mark Cooney, Thomas D Dunham, Jason B Greene, Correigh M Haltuch, Melissa A Hazen, Elliott L Holzer, Damon M Huff, David D Johnson, Rachel C Jordan, Chris E Kaplan, Isaac C Lindley, Steven T Mantua, Nathan J Moyle, Peter B Myers, James M Nelson, Mark W Spence, Brian C Weitkamp, Laurie A Williams, Thomas H Willis-Norton, Ellen e0217711 2019-01-01 application/pdf https://escholarship.org/uc/item/2195z60q unknown eScholarship, University of California qt2195z60q https://escholarship.org/uc/item/2195z60q public PloS one, vol 14, iss 7 Animals Salmon Oncorhynchus mykiss Humans Conservation of Natural Resources Ecosystem Temperature Seasons Seawater Oregon California Pacific Ocean Climate Change General Science & Technology article 2019 ftcdlib 2021-05-08T18:03:24Z 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, interplayed 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. Article in Journal/Newspaper Ocean acidification University of California: eScholarship Pacific Sockeye ENVELOPE(-130.143,-130.143,54.160,54.160) |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Animals Salmon Oncorhynchus mykiss Humans Conservation of Natural Resources Ecosystem Temperature Seasons Seawater Oregon California Pacific Ocean Climate Change General Science & Technology |
spellingShingle |
Animals Salmon Oncorhynchus mykiss Humans Conservation of Natural Resources Ecosystem Temperature Seasons Seawater Oregon California Pacific Ocean Climate Change General Science & Technology Crozier, Lisa G McClure, Michelle M Beechie, Tim Bograd, Steven J Boughton, David A Carr, Mark Cooney, Thomas D Dunham, Jason B Greene, Correigh M Haltuch, Melissa A Hazen, Elliott L Holzer, Damon M Huff, David D Johnson, Rachel C Jordan, Chris E Kaplan, Isaac C Lindley, Steven T Mantua, Nathan J Moyle, Peter B Myers, James M Nelson, Mark W Spence, Brian C Weitkamp, Laurie A Williams, Thomas H Willis-Norton, Ellen Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem. |
topic_facet |
Animals Salmon Oncorhynchus mykiss Humans Conservation of Natural Resources Ecosystem Temperature Seasons Seawater Oregon California Pacific Ocean Climate Change General Science & Technology |
description |
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, interplayed 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. |
format |
Article in Journal/Newspaper |
author |
Crozier, Lisa G McClure, Michelle M Beechie, Tim Bograd, Steven J Boughton, David A Carr, Mark Cooney, Thomas D Dunham, Jason B Greene, Correigh M Haltuch, Melissa A Hazen, Elliott L Holzer, Damon M Huff, David D Johnson, Rachel C Jordan, Chris E Kaplan, Isaac C Lindley, Steven T Mantua, Nathan J Moyle, Peter B Myers, James M Nelson, Mark W Spence, Brian C Weitkamp, Laurie A Williams, Thomas H Willis-Norton, Ellen |
author_facet |
Crozier, Lisa G McClure, Michelle M Beechie, Tim Bograd, Steven J Boughton, David A Carr, Mark Cooney, Thomas D Dunham, Jason B Greene, Correigh M Haltuch, Melissa A Hazen, Elliott L Holzer, Damon M Huff, David D Johnson, Rachel C Jordan, Chris E Kaplan, Isaac C Lindley, Steven T Mantua, Nathan J Moyle, Peter B Myers, James M Nelson, Mark W Spence, Brian C Weitkamp, Laurie A Williams, Thomas H Willis-Norton, Ellen |
author_sort |
Crozier, Lisa G |
title |
Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem. |
title_short |
Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem. |
title_full |
Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem. |
title_fullStr |
Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem. |
title_full_unstemmed |
Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem. |
title_sort |
climate vulnerability assessment for pacific salmon and steelhead in the california current large marine ecosystem. |
publisher |
eScholarship, University of California |
publishDate |
2019 |
url |
https://escholarship.org/uc/item/2195z60q |
op_coverage |
e0217711 |
long_lat |
ENVELOPE(-130.143,-130.143,54.160,54.160) |
geographic |
Pacific Sockeye |
geographic_facet |
Pacific Sockeye |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PloS one, vol 14, iss 7 |
op_relation |
qt2195z60q https://escholarship.org/uc/item/2195z60q |
op_rights |
public |
_version_ |
1766159507144048640 |