Avian predation on salmonids in the Columbia River Basin
Abstract/Description: | The primary goal of this report is to assemble and summarize results from previous published and unpublished studies of avian predation in the Columbia River basin (CRB) and to present results from retrospective analyses of data from previous studies to identify long-term patterns and trends. Results of these analyses are vital for assessing the efficacy of management initiatives to reduce predation impacts on Endangered Species Act-listed juvenile salmonids by Caspian terns and double-crested cormorants in the CRB and to inform an adaptive approach that ensures that management objectives are fully achieved and sustained into the future. These analyses are also essential for evaluating how management actions have and will continue to affect populations of piscivorous colonial waterbirds in the CRB and throughout the Pacific Flyway, populations of native species that are protected by the Migratory Bird Treaty Act. Finally, we hope that this report will serve as a comprehensive repository of results from research, monitoring, and evaluation of avian predation during 1997-2019 and provide a single-source document on the topic for regional managers, stakeholders, researchers, and the public. |
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Subject(s): | n-us-or Salmonidae -- Effect of predation on -- Columbia River Watershed -- Evaluation Caspian tern -- Columbia River Watershed -- Management -- Evaluation Double-crested cormorant -- Columbia River Watershed -- Management -- Evaluation |
Date Issued: | March 31, 2021 |
Title: | Avian predation on salmonids in the Columbia River Basin: a synopsis of ecology and management. | |
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Alternative Title: | Avian predation synthesis report. | |
Name(s): |
Roby, Daniel D., editor Evans, Allen F., editor Collis, Ken, editor Oregon State University, issuing body Real Time Research, Inc., issuing body United States Army Corps of Engineers, sponsoring body United States Bonneville Power Administration, sponsoring body Grant County Public Utility District (Wash.), sponsoring body Oregon Department of Fish and Wildlife, sponsoring body |
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Type of Resource: | text | |
Genre: |
bibliography government publication text |
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Issuance: | monographic | |
Date Issued: | March 31, 2021 | |
Publisher: | Department of Fisheries and Wildlife, Oregon State University | |
Place of Publication: | Corvallis, OR | |
Physical Form: |
electronic resource remote computer online resource |
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Extent: | 1 online resource (788 pages) : illustrations (chiefly color), maps (chiefly color) | |
Abstract/Description: | The primary goal of this report is to assemble and summarize results from previous published and unpublished studies of avian predation in the Columbia River basin (CRB) and to present results from retrospective analyses of data from previous studies to identify long-term patterns and trends. Results of these analyses are vital for assessing the efficacy of management initiatives to reduce predation impacts on Endangered Species Act-listed juvenile salmonids by Caspian terns and double-crested cormorants in the CRB and to inform an adaptive approach that ensures that management objectives are fully achieved and sustained into the future. These analyses are also essential for evaluating how management actions have and will continue to affect populations of piscivorous colonial waterbirds in the CRB and throughout the Pacific Flyway, populations of native species that are protected by the Migratory Bird Treaty Act. Finally, we hope that this report will serve as a comprehensive repository of results from research, monitoring, and evaluation of avian predation during 1997-2019 and provide a single-source document on the topic for regional managers, stakeholders, researchers, and the public. | |
Table of Contents: | Caspian tern management in the Columbia River estuary -- Caspian tern management in the Columbia Plateau region -- Caspian tern management at alternative colony sites outside the Columbia River basin -- Double-crested cormorant management in the Columbia River estuary -- Relative impacts of double-crested cormorants and Caspian terns on juvenile salmonids in the Columbia River estuary : a retrospective analysis of the PIT tag data -- Predation on juvenile salmonids by colonial waterbirds nesting at unmanaged colonies in the Columbia River basin -- Cumulative effects of avian predation on juvenile salmonids in the Columbia River basin -- Additive effects of avian predation on the survival of juvenile salmonids in the Columbia River basin -- Functional responses across predator species, space, and time: how piscivorous waterbirds respond to changes in juvenile steelhead abundance -- Factors affecting the susceptibility of juvenile salmonids to avian predation -- Standardized methods for data collection & analysis -- Summary data tables -- East Sand Island Caspian tern predictive predation rate analysis -- Annotated bibliography. | |
Identifier(s): | 1249442182 (oclc) | |
Note(s): |
prepared by Real Time Research, Inc. and Oregon State University ; funded by U.S. Army Corps of Engineers, Bonneville Power Administration, Grant County Public Utility District/Priest Rapids Coordinating Committee, and Oregon Department of Fish and Wildlife ; editors: Daniel D. Roby, Allen F. Evans, and Ken Collis. Title from PDF cover (viewed on May 3, 2021). This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes. Includes bibliographical references. Funded by: U.S. Army Corps of Engineers, Bonneville Power Administration, Grant County Public Utility District/Priest Rapids Coordinating Committee, and Oregon Department of Fish and Wildlife. Mode of access: Internet from the Oregon Government Publications Collection. Text in English. Synoptic report, 1997-2019 |
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Subject(s): |
n-us-or Salmonidae -- Effect of predation on -- Columbia River Watershed -- Evaluation Caspian tern -- Columbia River Watershed -- Management -- Evaluation Double-crested cormorant -- Columbia River Watershed -- Management -- Evaluation |
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Restrictions on Access: | http://rightsstatements.org/vocab/CNE/1.0/ | |
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