Index Catalog // ScholarsArchive@OSU

Breeding and foraging ecology of Caspian terns (Sterna caspia) in the mid-Columbia River : predation on juvenile salmonids and management implications

Creator:: Antolos, Michelle
Abstract:: I investigated Caspian terns (Sterna caspia) breeding at colonies on the Columbia Plateau (southeastern Washington and northeastern Oregon), with emphasis on the breeding and foraging ecology of Caspian terns nesting at colonies in the mid-Columbia River. I focused research at colonies where Caspian terns foraged on juvenile salmonids (Oncorhynchus spp.)...
Resource Type:: Masters Thesis
Full Text:: . Robert Lackey and Dr. William Pearcy, for their guidance and expertise; to Ken Collis for his support

Susceptibility of Juvenile Steelhead to Avian Predation: the Influence of Individual Fish Characteristics and River Conditions

Creator:: Hostetter, Nathan J., Evans, Allen F., Roby, Daniel D., and Collis, Ken
Abstract:: Identification of the factors that influence susceptibility to predation can aid in developing management strategies to recover fish populations of conservation concern. Predator-prey relationships can be influenced by numerous factors, including prey condition, prey size, and environmental conditions. We investigated these factors by using juvenile steelhead Oncorhynchus mykiss from the...
Resource Type:: Article
Full Text:: Fisheries and Wildlife, Oregon State University, 104 Nash Hall, Corvallis, Oregon 97331, USA Ken Collis

Potential Effects of Management on Caspian Tern Hydroprogne caspia Predation on Juvenile Salmonids at a Colony in San Francisco Bay, California

Creator:: Adrean, Lindsay J., Roby, Daniel D., Lyons, Donald E., Collis, Ken, and Evans, Allen F.
Abstract:: San Francisco Bay is a proposed relocation site for some of the Caspian terns Hydroprogne caspia currently nesting at the world's largest colony for the species in the Columbia River estuary and consuming salmonids listed under the U. S. Endangered Species Act (ESA). However, several runs of salmonids listed under...
Resource Type:: Article
Full Text:: Nash Hall, Corvallis, Oregon 97331, USA Ken Collis* and Allen F. Evans Real Time Research, Inc., 52

Developing Nondestructive Techniques for Managing Conflicts Between Fisheries and Double-Crested Cormorant Colonies

Creator:: Suzuki, Yasuko, Roby, Daniel D., Lyons, Donald E., Courtot, Karen N., and Collis, Ken
Abstract:: Double-crested cormorants (Phalacrocorax auritus) have been identified as the source of significant mortality to juvenile salmonids (Oncorhynchus spp.) in the Columbia River Basin. Management plans for reducing the size of a large colony on East Sand Island (OR, USA) in the Columbia River estuary are currently being developed. We evaluated...
Resource Type:: Article
Full Text:: Hall, Corvallis, OR 97331, USA KEN COLLIS, Real Time Research, Incorporated, 52 SW Roosevelt Avenue

Demographics of Piscivorous Colonial Waterbirds and Management Implications for ESA-listed Salmonids on the Columbia Plateau

Creator:: Adkins, Jessica Y., Lyons, Donald E., Loschl, Peter J., Roby, Daniel D., Collis, Ken, Evans, Allen F., and Hostetter, Nathan J.
Abstract:: We investigated colony size, productivity, and limiting factors for five piscivorous waterbird species nesting at 18 locations on the Columbia Plateau (Washington) during 2004–2010 with emphasis on species with a history of salmonid (Oncorhynchus spp.) depredation. Numbers of nesting Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) were stable...
Resource Type:: Article
Full Text:: , J. Y., Lyons, D. E., Loschl, P. J., Roby, D. D., Collis, K., Evans, A. F., & Hostetter, N. J. (2014

LyonsDonaldFisheriesWildlifeQuantifyingAvianPredation.pdf

Creator:: Hostetter, Nathan J., Evans, Allen F., Cramer, Bradley M., Collis, Ken, Lyons, Donald E., and Roby, Daniel D.
Abstract:: Accurate assessment of specific mortality factors is vital to prioritize recovery actions for threatened and endangered species. For decades, tag recovery methods have been used to estimate fish mortality due to avian predation. Predation probabilities derived from fish tag recoveries on piscivorous waterbird colonies typically reflect minimum estimates of predation...
Full Text:: . Cramer, and Ken Collis Real Time Research, Inc., 231 Southwest Scalehouse Loop, Suite 101, Bend, Oregon

LyonsDonaldFisheriesWildlifeQuantifyingAvianPredation_SupplementalMaterial.pdf

Creator:: Hostetter, Nathan J., Evans, Allen F., Cramer, Bradley M., Collis, Ken, Lyons, Donald E., and Roby, Daniel D.
Abstract:: Accurate assessment of specific mortality factors is vital to prioritize recovery actions for threatened and endangered species. For decades, tag recovery methods have been used to estimate fish mortality due to avian predation. Predation probabilities derived from fish tag recoveries on piscivorous waterbird colonies typically reflect minimum estimates of predation...

Quantifying Avian Predation on Fish Populations: Integrating Predator-Specific Deposition Probabilities in Tag Recovery Studies

Creator:: Hostetter, Nathan J., Evans, Allen F., Cramer, Bradley M., Collis, Ken, Lyons, Donald E., and Roby, Daniel D.
Abstract:: Accurate assessment of specific mortality factors is vital to prioritize recovery actions for threatened and endangered species. For decades, tag recovery methods have been used to estimate fish mortality due to avian predation. Predation probabilities derived from fish tag recoveries on piscivorous waterbird colonies typically reflect minimum estimates of predation...
Resource Type:: Article

Trends in Caspian Tern Nesting and Diet in San Francisco Bay: Conservation Implications for Terns and Salmonids

Creator:: Collis, Ken, Roby, Daniel D., Larson, Keith W., Adrean, Lindsay J., Nelson, S. Kim, Evans, Allen F., Hostetter, Nathan, Battaglia, Dan, Lyons, Donald E., Marcella, Tim, and Patterson, Allison
Abstract:: Colony size, nesting ecology and diet of Caspian Terns (Hydroprogne caspia) were investigated in the San Francisco Bay area (SFBA) during 2003-2009 to assess the potential for conservation of the tern breeding population and possible negative effects of predation on survival of juvenile salmonids (Oncorhynchus spp.). Numbers of breeding Caspian...
Resource Type:: Article
Full Text:: : Conservation Implications for Terns and Salmonids KEN COLLIS1,*, DANIEL D. ROBY2, KEITH W. LARSON3,4, LINDSAY

Systemwide Evaluation of Avian Predation on Juvenile Salmonids from the Columbia River Based on Recoveries of Passive Integrated Transponder Tags

Creator:: Evans, Allen F., Hostetter, Nathan J., Roby, Daniel D., Collis, Ken, Lyons, Donald E., Sandford, Benjamin P., Ledgerwood, Richard D., and Sebring, Scott
Abstract:: We recovered passive integrated transponder (PIT) tags from nine piscivorous waterbird colonies in the Columbia River basin to evaluate avian predation on Endangered Species Act (ESA)-listed salmonid Oncorhynchus spp. populations during 2007–2010. Avian predation rates were calculated based on the percentage of PIT-tagged juvenile salmonids that were detected as passing...
Resource Type:: Article
Full Text:: , Corvallis, Oregon 97331, USA Ken Collis* Real Time Research, Inc., 52 Southwest Roosevelt Avenue, Bend

ScholarsArchive@OSU

Breeding and foraging ecology of Caspian terns (Sterna caspia) in the mid-Columbia River : predation on juvenile salmonids and management implications

Susceptibility of Juvenile Steelhead to Avian Predation: the Influence of Individual Fish Characteristics and River Conditions

Potential Effects of Management on Caspian Tern Hydroprogne caspia Predation on Juvenile Salmonids at a Colony in San Francisco Bay, California

Developing Nondestructive Techniques for Managing Conflicts Between Fisheries and Double-Crested Cormorant Colonies

Demographics of Piscivorous Colonial Waterbirds and Management Implications for ESA-listed Salmonids on the Columbia Plateau

LyonsDonaldFisheriesWildlifeQuantifyingAvianPredation.pdf

LyonsDonaldFisheriesWildlifeQuantifyingAvianPredation_SupplementalMaterial.pdf

Quantifying Avian Predation on Fish Populations: Integrating Predator-Specific Deposition Probabilities in Tag Recovery Studies

Trends in Caspian Tern Nesting and Diet in San Francisco Bay: Conservation Implications for Terns and Salmonids

Systemwide Evaluation of Avian Predation on Juvenile Salmonids from the Columbia River Based on Recoveries of Passive Integrated Transponder Tags

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