Index Catalog // ScholarsArchive@OSU

The ecology of the olive ridley turtle (Lepidochelys olivacea) in the eastern tropical Pacific Ocean during the breeding/nesting season

Creator:: Beavers, Sallie Christian
Resource Type:: Masters Thesis
Full Text:: and Wildlife I understand that my thesis will become part of the permanent collection of Oregon State

Extensive Resource Subsidies by Salmon-Supported Bears to Granivores

Creator:: Shakeri, Yasaman N.
Abstract:: In salmon-rich, northern coastal environments brown bears can occur at high densities and exert wide-ranging effects on ecosystem processes. Bear consumption of seasonally available fruit may provide important seed dispersal services to plants, and by extension, influence the ecology of seed consumers such as small mammals. In this study, we...
Resource Type:: Masters Thesis
Full Text:: land and wildlife management practices. Consequently, the indirect effects of bears as seed

Satellite monitored dive characteristics of the northern right whale, Eubalaena glacialis

Creator:: Nieukirk, Sharon L.
Abstract:: The western North Atlantic population of the northern right whale (Eubalaena glacialis) was severely depleted by whaling over the last century. Despite over fifty years of protection, fewer than four hundred individuals are believed to exist in the North Atlantic. Relatively little is known about the diving behavior, respiratory physiology,...
Resource Type:: Masters Thesis
Full Text:: December 7, 1992 Commencement June 1993 APPROVED: or of Fisheries and Wildlife in charge of major

The Primacy of Mammals as Seed Dispersers and Predators in Salmon-Bearing Ecosystems

Creator:: Harrer, Laurie E. F.
Abstract:: Plants often encase seeds in a nutritional reward to incentivize seed dispersal by birds and mammals, but these seeds may also be removed and destroyed by seed predators. Although birds are typically thought to be the primary seed dispersers of berries in temperate systems, in southeast Alaska and other salmon-bearing...
Resource Type:: Masters Thesis
Full Text:: on December 2, 2016. Title: The Primacy of Mammals as Seed Dispersers and Predators in Salmon

The effects of forage improvement practices on Roosevelt elk in the Oregon Coast Range

Creator:: Stussy, Rosemary J.
Abstract:: Forage availability, diets, distribution, and productivity were compared for Roosevelt elk, Cervus elaphus roosevelti, using improved (i.e. seeded, fertilized, and grazed) and untreated areas of the Oregon Coast Range. Seasonal forage availability was substantially different on 1-year-old improved and untreated clearcuts, but the differences diminished by clearcut age 4 and...
Resource Type:: Masters Thesis
Full Text:: friendship and long work hours contributed by some of Oregon Department of Fish and Wildlife's finest

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Creator:: Suzuki, Yasuko
Abstract:: Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...
Resource Type:: Dissertation
Full Text:: . U.S. Fish and Wildlife Service, U.S. Army Corps of Engineers, and NOAA Fisheries. 2005. Caspian tern

Movement, dive behavior, and habitat-use of common murres (Uria aalge) in the Northern California Current System under variable ocean conditions

Creator:: Loredo, Stephanie A.
Abstract:: Year-round habitat use of marine predators provides knowledge of important marine areas throughout different life stages. Large-scale, environmental variability, both in space and time, causes changes in the behavior and distribution of marine predators that are important to quantify for conservation. In the Northern California Current System (NCCS), common murres...
Resource Type:: Masters Thesis
Full Text:: Oregon Seabird Colonies. BTP-R1009-2007, U.S. Fish and Wildlife Service, Portland. Parrish, J. & Zador

Susceptibility of juvenile salmonids to avian predation : Are Caspian terns and double-crested cormorants only taking the sick and injured?

Creator:: Hostetter, Nathan J.
Abstract:: The ability to non-destructively assess fish condition and subsequently track fish behavior and survival can be vital in understanding natural and anthropogenic stressors and sources of mortality, especially in populations of fish listed as threatened or endangered. I investigated the use of a quick, non-lethal, external examination technique to assess...
Resource Type:: Masters Thesis
Full Text:: AUTHORS Dr. Daniel D. Roby (USGS-Oregon Cooperative Fish and Wildlife Research Unit, Oregon State

Humpback Whale (Megaptera novaeangliae) Calling Behavior In Southeast Alaska : A Study In Acoustic Ecology And Noise

Creator:: Fournet, Michelle E. H.
Abstract:: Humpback whales (Megaptera novaeangliae) are a widely distributed baleen whale species, well known for their diverse acoustic behavior. On high-latitude foraging grounds, humpback whales produce a suite of non-song vocalizations (“calls”) in concert with foraging and social behavior. In this dissertation I investigated the role of calls in the acoustic...
Resource Type:: Dissertation
Full Text:: Fisheries and Wildlife Dean of the Graduate School I understand that my

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:: Department of Fish and Wildlife, and the entire northern pikeminnow electrofishing crew, for the opportunity

ScholarsArchive@OSU

The ecology of the olive ridley turtle (Lepidochelys olivacea) in the eastern tropical Pacific Ocean during the breeding/nesting season

Extensive Resource Subsidies by Salmon-Supported Bears to Granivores

Satellite monitored dive characteristics of the northern right whale, Eubalaena glacialis

The Primacy of Mammals as Seed Dispersers and Predators in Salmon-Bearing Ecosystems

The effects of forage improvement practices on Roosevelt elk in the Oregon Coast Range

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Movement, dive behavior, and habitat-use of common murres (Uria aalge) in the Northern California Current System under variable ocean conditions

Susceptibility of juvenile salmonids to avian predation : Are Caspian terns and double-crested cormorants only taking the sick and injured?

Humpback Whale (Megaptera novaeangliae) Calling Behavior In Southeast Alaska : A Study In Acoustic Ecology And Noise

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

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