Climate Change Shrinks and Fragments Salmon Habitats in a Snow‐Dependent Region
Abstract Climate change threatens biodiversity through global alteration of habitats, but efficient conservation responses are often hindered by imprecise downscaling of impacts. Besides thermal effects, warming also drives important ancillary environmental changes, such as when river hydrology evol...
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| Format: | Article |
| Language: | English |
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Wiley
2022-06-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2022GL098552 |
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| author | Daniele Tonina James A. McKean Daniel Isaak Rohan M. Benjankar Chunling Tang Qiuwen Chen |
| author_facet | Daniele Tonina James A. McKean Daniel Isaak Rohan M. Benjankar Chunling Tang Qiuwen Chen |
| author_sort | Daniele Tonina |
| collection | DOAJ |
| description | Abstract Climate change threatens biodiversity through global alteration of habitats, but efficient conservation responses are often hindered by imprecise downscaling of impacts. Besides thermal effects, warming also drives important ancillary environmental changes, such as when river hydrology evolves in response to climate forcing. Earlier snowmelt runoff and summer flow declines are broadly manifested in snow‐dependent regions and relevant to socioeconomically important cold‐water fishes. Here, we mechanistically quantify how climate‐induced summer flow declines during historical and future periods cause complex local changes in Chinook salmon (Oncorhynchus tshawytscha) habitats for juveniles and spawning adults. Changes consisted of large reductions in useable habitat area and connectivity between the main channel and adjacent off‐channel habitats. These reductions decrease the capacity of freshwater habitats to support historical salmon abundances and could pose risks to population persistence in some areas. |
| format | Article |
| id | doaj-art-a351178299a845d5aca35b5ee0f5c1b5 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2022-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-a351178299a845d5aca35b5ee0f5c1b52025-01-22T14:38:16ZengWileyGeophysical Research Letters0094-82761944-80072022-06-014912n/an/a10.1029/2022GL098552Climate Change Shrinks and Fragments Salmon Habitats in a Snow‐Dependent RegionDaniele Tonina0James A. McKean1Daniel Isaak2Rohan M. Benjankar3Chunling Tang4Qiuwen Chen5Center for Ecohydraulics Research University of Idaho Boise ID USARocky Mountain Research Station Aquatic Laboratory Boise ID USARocky Mountain Research Station Aquatic Laboratory Boise ID USASouthern Illinois University Edwardsville Edwardsville IL USAUS Environmental Protection Agency Washington, DC WA USANanjing Hydraulics Research Institute Nanjing ChinaAbstract Climate change threatens biodiversity through global alteration of habitats, but efficient conservation responses are often hindered by imprecise downscaling of impacts. Besides thermal effects, warming also drives important ancillary environmental changes, such as when river hydrology evolves in response to climate forcing. Earlier snowmelt runoff and summer flow declines are broadly manifested in snow‐dependent regions and relevant to socioeconomically important cold‐water fishes. Here, we mechanistically quantify how climate‐induced summer flow declines during historical and future periods cause complex local changes in Chinook salmon (Oncorhynchus tshawytscha) habitats for juveniles and spawning adults. Changes consisted of large reductions in useable habitat area and connectivity between the main channel and adjacent off‐channel habitats. These reductions decrease the capacity of freshwater habitats to support historical salmon abundances and could pose risks to population persistence in some areas.https://doi.org/10.1029/2022GL098552climate changehabitat fragmentationhabitat reductionflow hydrology |
| spellingShingle | Daniele Tonina James A. McKean Daniel Isaak Rohan M. Benjankar Chunling Tang Qiuwen Chen Climate Change Shrinks and Fragments Salmon Habitats in a Snow‐Dependent Region Geophysical Research Letters climate change habitat fragmentation habitat reduction flow hydrology |
| title | Climate Change Shrinks and Fragments Salmon Habitats in a Snow‐Dependent Region |
| title_full | Climate Change Shrinks and Fragments Salmon Habitats in a Snow‐Dependent Region |
| title_fullStr | Climate Change Shrinks and Fragments Salmon Habitats in a Snow‐Dependent Region |
| title_full_unstemmed | Climate Change Shrinks and Fragments Salmon Habitats in a Snow‐Dependent Region |
| title_short | Climate Change Shrinks and Fragments Salmon Habitats in a Snow‐Dependent Region |
| title_sort | climate change shrinks and fragments salmon habitats in a snow dependent region |
| topic | climate change habitat fragmentation habitat reduction flow hydrology |
| url | https://doi.org/10.1029/2022GL098552 |
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