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Ecology of breeding burrowing owls in the Columbia Basin, Oregon

Creator:: Green, Gregory A.
Resource Type:: Masters Thesis
Full Text:: Owls in the Col.unbia Basin, Oregon Abstract approved Robert G. Anthony The ecology of breeding

Breeding chronology, habitat utilization and nest-site selection of the long-billed curlew in northcentral Oregon

Creator:: Pampush, Geoffrey J.
Abstract:: Breeding ecology of long-billed curlews in Umatilla and Morrow Counties, Oregon, was studied during the spring and summer of 1978 and 1979. The first curlews were observed in the study areas on 16 and 19 March of 1978 and 1979, respectively. Earliest clutch completion and onset of incubation was on...
Resource Type:: Masters Thesis
Full Text:: Geoffrey J. Pampush Acknowledgements I would like to thank John Kurtz, Umatilla National Wildlife

Relative abundance and habitat associations of small mammals in two forest types in southern Oregon

Creator:: Johnston, Aaron N.
Abstract:: I studied small-mammal communities and their response to grazing in mixed-conifer forests and oak woodlands in the Cascade-Siskiyou National Monument in southern Oregon. My objectives were to (1) compare small-mammal communities among forest types and grazing intensities, (2) identify riparian affiliated species, and (3) describe microhabitat associations. Over two years,...
Resource Type:: Masters Thesis
Full Text:: Robert G. Anthony I studied small-mammal communities and their response to grazing in mixed- conifer

Abundance and habitat associations of Washington ground squirrels in north-central Oregon

Creator:: Greene, Eric
Abstract:: Much of the Columbia River Basin has been cultivated for agriculture, which has reduced and fragmented the native shrub-steppe habitats. As a result, the range of the Washington ground squirrel (Spermophilus washingtoni) has been significantly reduced, prompting the states of Washington and Oregon to review their status. Consequently, I investigated...
Resource Type:: Masters Thesis
Full Text:: redacted for privacy. Robert G. Anthony Much of the Columbia River Basin has been cultivated for

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:: Abstract approval: Robert G. Anthony, Ph.D. Redacted for Privacy The forested landscape in western

Roosevelt elk habitat use in the Oregon Coast Range

Creator:: Pope, Michael D. (Michael Dickens)
Abstract:: Few studies have evaluated non-migratory Roosevelt elk (Cervus elaphus roosevelti) interactions and habitat use on lands undergoing extensive timber removal. We captured and radio-tracked for 14 months representatives from 29 different bands of elk across a 37,000 ha area of Oregon's Coast Range. We identified 6 habitat variables within individual...
Resource Type:: Masters Thesis
Full Text:: the Oregon Coast Range. Abstract approved: Robert G. Anthony Few studies have evaluated non

Foraging strategies of Glaucous-winged Gulls : influences of sea otter predation

Creator:: Irons, David B
Abstract:: Diets and foraging strategies of Glaucous-winged Gulls were studied in areas with and without sea otters in the western Aleutian Islands, Alaska. Gulls foraged on invertebrates (e.g., sea urchins, limpets, chitons, mussels, and others) in the rocky intertidal community and on fish at sea; this study was conducted on gulls...
Resource Type:: Masters Thesis
Full Text:: transportion to and from Attu Island, and Lt. Karonis furnished logistical support on Attu. John Martin and

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:: Columbia River Estuary. Abstract approved Robert G. Anthony The California brown pelican (Pelecanus

Impacts of agricultural drainwater and contaminants on wetlands at Kesterson Reservoir, California

Creator:: Schuler, Carol Ann, 1946-
Abstract:: Kesterson Reservoir (Kesterson) received subsurface agricultural drainwater containing high levels of salts and other minerals from farmland in the San Joaquin Valley of California. Aquatic plants and invertebrates were sampled at Kesterson in May, August, and December of 1984. The reservoir supported a different biota and lower species diversity than...
Resource Type:: Masters Thesis
Full Text:: Robert G. Anthony Kesterson Reservoir (Kesterson) received subsurface agricultural drainwater

Mark-recapture estimates of population parameters for selected species of small mammals

Creator:: Hammond, Ellen L.
Abstract:: I used program CAPTURE to analyze 1,535 data sets for 33 North American species of small mammals for sources of variation in capture probabilities and to characterize species-specific responses to markrecapture trapping. CAPTURE incorporates seven models to account for all possible combinations of heterogeneity (h), behavioral response (b), and time...
Resource Type:: Masters Thesis
Full Text:: G. Anthony I used program CAPTURE to analyze 1,535 data sets for 33 North American species of

ScholarsArchive@OSU

Ecology of breeding burrowing owls in the Columbia Basin, Oregon

Breeding chronology, habitat utilization and nest-site selection of the long-billed curlew in northcentral Oregon

Relative abundance and habitat associations of small mammals in two forest types in southern Oregon

Abundance and habitat associations of Washington ground squirrels in north-central Oregon

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

Roosevelt elk habitat use in the Oregon Coast Range

Foraging strategies of Glaucous-winged Gulls : influences of sea otter predation

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

Impacts of agricultural drainwater and contaminants on wetlands at Kesterson Reservoir, California

Mark-recapture estimates of population parameters for selected species of small mammals

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