Index Catalog // ScholarsArchive@OSU

Range-wide abundance and fluctuating asymmetry patterns of sagebrush-obligate passerine birds

Creator:: Krissman, Cortnie M.
Abstract:: North American sagebrush (Artemisia spp.) ecosystems are suffering from reductions in habitat extent and quality. Only about 50% of sagebrush remains from pre-settlement conditions, and much of the remaining habitat is fragmented or degraded by invasive species, fire suppression and overgrazing. Sagebrush-obligate species are experiencing population declines as a result...
Resource Type:: Masters Thesis
Full Text:: . Baker, R. L. Eng, J. S. Gashwilder, and M. H. Schroeder. 1976. Conservation committee report on

Characteristics of northern flying squirrel and Townsend's chipmunk populations in second -and old-growth forests

Creator:: Rosenberg, Daniel K.
Resource Type:: Masters Thesis
Full Text:: chipmunk populations in second -and old-growth forests AN ABSTRACT OF THE THESIS OF Daniel K. Rosenberg

Beaver ecology on the west Copper River Delta, Alaska

Creator:: Cooper, Erin E.
Abstract:: Since the 1964 earthquake and geologic uplift, beavers (Castor canadensis) have expanded their historic range from the inland (outwash plain) Copper River Delta, Alaska to the once tidally influenced areas of the outer area (uplifted marsh). The uplift presents a unique opportunity to observe beaver expansion, habitat selection and influence...
Resource Type:: Masters Thesis
Full Text:: Beaver Ecology on the West Copper River Delta, Alaska AN

Serologic survey of infectious disease agents in black bears (Ursus americanus) of California, Oregon, and Washington

Creator:: Mortenson, Jack A.
Abstract:: The causes of natural mortality and disease in free ranging black bears, Ursus americanus, in California, Oregon, and Washington are poorly known. Life history components, such as scavenging and overlapping habitat with many species of carnivores, potentially expose bears to a wide range of infectious disease agents. To date, no...
Resource Type:: Masters Thesis
Full Text:: densities occur. It is common on the West Coast of the United States, and has been reported in northern

Conserving avian diversity in agricultural systems : the role of isolated Oregon white oak legacy trees

Creator:: DeMars, Craig A.
Abstract:: Over one third of the earth’s land surface has been modified to some extent for agricultural purposes. The large global footprint of agriculture, combined with the knowledge that existing reserve networks are likely insufficient for long-term conservation of native biodiversity, has necessitated that agricultural systems contribute to conservation of native...
Resource Type:: Masters Thesis
Full Text:: Daniel K. Rosenberg Over one third of the earth’s land surface has been modified to some extent for

Disturbance and roosting ecology of California brown pelicans (Pelecanus occidentalis californicus) on East Sand Island in the Columbia River Estuary

Creator:: Wright, Sadie K.
Abstract:: The California brown pelican (Pelecanus occidentalis californicus) is listed as an endangered species under the U.S. Endangered Species Act. The Recovery Plan for this subspecies outlines the need to "Assure long-term protection of adequate food supplies and essential. . .roosting. . . habitat throughout the range." I investigated the effects...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Sadie K. Wright for the degree of

Development and application of a resource selection model for pygmy rabbits

Creator:: Meisel, Jennifer K.
Abstract:: Pygmy rabbits (Brachylagus idahoensis) in Oregon and Washington are a sagebrush (Artemisia tridentata spp.) obligate species of concern because of declining populations and extirpation from much of their range. Efforts are underway to establish a captive bred population of the Columbia Basin pygmy rabbit in Washington state for reintroduction into...
Resource Type:: Masters Thesis
Full Text:: Jennifer K. Meisel for the degree of Master of Science in Wildlife Science presented on June 15, 2006

Diet and nutrition of female sage grouse during the pre-laying period

Creator:: Barnett, Jenny K.
Abstract:: Nutrition effects productivity of grouse. Females that obtain high nutrient diets in spring produce larger clutches and larger, more viable chicks than hens on less nutritious diets. Grouse select high nutrient foods to help ensure proper nutrition. Reduced productivity accounted for the decline of sage grouse (Centrocercus urophasianus) populations in...
Resource Type:: Masters Thesis
Full Text:: pre-laying period AN ABSTRACT OF THE THESIS OF Jenny K. Barnett for the degree of Master of

Foraging ecology, colony attendance, and chick provisioning of Caspian terns (Sterna caspia) in the Columbia River Estuary

Creator:: Anderson, Scott K.
Abstract:: This study was designed to enhance understanding of factors influencing foraging distribution, diet composition, and overall reproductive success of Caspian terns (Sterna caspia) nesting on East Sand Island in the Columbia River estuary. This colony of nearly 10,000 breeding pairs is of concern to regional resource managers because Caspian terns...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Scott K. Anderson for the degree

Habitat utilization by minke whales (Balaenoptera acutorostrata) in the St. Lawrence Estuary, Canada

Creator:: Zeppelin, Tonya K.
Abstract:: Characteristics of minke whale (Balaenoptera acutorostrata) habitat at the head of the Laurentian Channel in the St. Lawrence Estuary, Canada were identified by quantifying environmental and temporal habitat variables and comparing them to the presence or absence of minke whales during the summer of 1996. Identification photographs of minke whales...
Resource Type:: Masters Thesis
Full Text:: minke whales. Acta Physiol. Scand. 153: 61-66. Darling, J. D., Nick lin, C., Norris, K. S., Whitehead

ScholarsArchive@OSU

Range-wide abundance and fluctuating asymmetry patterns of sagebrush-obligate passerine birds

Characteristics of northern flying squirrel and Townsend's chipmunk populations in second -and old-growth forests

Beaver ecology on the west Copper River Delta, Alaska

Serologic survey of infectious disease agents in black bears (Ursus americanus) of California, Oregon, and Washington

Conserving avian diversity in agricultural systems : the role of isolated Oregon white oak legacy trees

Disturbance and roosting ecology of California brown pelicans (Pelecanus occidentalis californicus) on East Sand Island in the Columbia River Estuary

Development and application of a resource selection model for pygmy rabbits

Diet and nutrition of female sage grouse during the pre-laying period

Foraging ecology, colony attendance, and chick provisioning of Caspian terns (Sterna caspia) in the Columbia River Estuary

Habitat utilization by minke whales (Balaenoptera acutorostrata) in the St. Lawrence Estuary, Canada

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