Index Catalog // ScholarsArchive@OSU

Evaluating space use and pesticide exposure risk for burrowing owls in an agricultural environment

Creator:: Gervais, Jennifer A.
Abstract:: Large burrowing owl (Aihene cunicularia) populations exist in areas of intensive agriculture in California, and pesticide exposure has been identified as a potential threat to population persistence. I evaluated breeding season use of agricultural fields by adult male owls using radio telemetry, and examined egg contaminant residues to estimate population-level...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jennifer A. Gervais for the

Survival, movements and habitat selection of pygmy rabbits (Brachylagus idahoensis) on the Great Basin of southeastern Oregon and northwestern Nevada

Creator:: Crawford, Justin A.
Abstract:: I investigated survival, movements, home range sizes, and habitat selection of pygmy rabbits (Brachylagus idahoensis) in southeastern Oregon and northwestern Nevada from June 2005 to June 2007. I trapped 298 rabbits on four sites and fitted each with radio transmitters. More than 13,000 locations of telemetered rabbits were recorded. I...
Resource Type:: Masters Thesis
Full Text:: Justin A. Crawford for the degree of Master of Science in Wildlife Science presented on June 4, 2008

Demography and habitat selection of northern spotted owls in post-fire landscapes of southwestern Oregon

Creator:: Clark, Darren A.
Abstract:: Several large wildfires in southwestern Oregon during the summers of 2001 and 2002 provided the opportunity to investigate the impacts of wildfire on northern spotted owls (Strix occidentalis caurina). I used radio-telemetry and demographic surveys to describe demographic performance and habitat selection of spotted owls in the areas burned by...
Resource Type:: Masters Thesis
Full Text:: Clark_Thesis AN ABSTRACT OF THE THESIS OF Darren A

Movements, habitat associations, and survival of Columbian white-tailed deer in western Oregon

Creator:: Ricca, Mark A.
Abstract:: Columbian white-tailed deer (Odocoileus virginianus leucurus, CWTD) are a geographically isolated and federally endangered sub-species for which there is a paucity of recent ecological information. I described and examined sources of variation in spatial use patterns (i.e. home range, areas of concentrated use, and movements), habitat associations, and survival for...
Resource Type:: Masters Thesis

Ecology of breeding burrowing owls in the Columbia Basin, Oregon

Creator:: Green, Gregory A.
Resource Type:: Masters Thesis
Full Text:: , Robert Grove, and Dr. B.J. Verts provided enthusiasm and assistance which is deeply appreciated. A very

Human impacts on the ecology of bald eagles in interior Alaska

Creator:: Steidl, Robert J.
Abstract:: To assess the consequences of increased recreational activity on bald eagles (Haliaeetus leucocephalus), we studied factors that influenced their behavior and reproductive success in the Gulkana River basin, Alaska, from 1989 to 1993. Both extrinsic and intrinsic factors were associated with reproductive success. Productivity averaged 0.86 young fledged per occupied...
Resource Type:: Dissertation

Influence of limited access roads on Roosevelt elk in the Oregon Coast Range

Creator:: Cole, Eric K.
Abstract:: No studies have evaluated the effects of limited vehicle access on movements, survival and habitat use of Roosevelt elk (Cervus elaphus roosevelti) . We installed twenty gates, restricting motorized vehicle access by the public in seven discrete Road Management Areas (RMAs), comprising 35% of the study area. We radio-tracked 31...
Resource Type:: Masters Thesis
Full Text:: the Oregon Coast Range. Abstract approved: Robert G. Anthony No studies have evaluated the

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:: Abstract Approved: AN ABSTRACT OF THE THESIS OF Carol A

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

Human-eagle interactions on the lower Columbia River

Creator:: McGarigal, Kevin
Abstract:: During the past decade (1978-87), breeding success and productivity of bald eagles on the lower Columbia River (LCR) has been far below state and regional averages and well below levels required for delisting under the Endangered Species Act by the Pacific States Bald Eagle Recovery Plan. Human disturbance was suspected...
Resource Type:: Masters Thesis
Full Text:: . I thank Dr. Robert Anthony for providing a particularly suitable environment at this stage of my

ScholarsArchive@OSU

Evaluating space use and pesticide exposure risk for burrowing owls in an agricultural environment

Survival, movements and habitat selection of pygmy rabbits (Brachylagus idahoensis) on the Great Basin of southeastern Oregon and northwestern Nevada

Demography and habitat selection of northern spotted owls in post-fire landscapes of southwestern Oregon

Movements, habitat associations, and survival of Columbian white-tailed deer in western Oregon

Ecology of breeding burrowing owls in the Columbia Basin, Oregon

Human impacts on the ecology of bald eagles in interior Alaska

Influence of limited access roads on Roosevelt elk in the Oregon Coast Range

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

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

Human-eagle interactions on the lower Columbia River

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