Index Catalog // ScholarsArchive@OSU

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

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

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:: . CONTRIBUTION OF AUTHORS Dr. Daniel K. Rosenberg assisted with study design and data analysis, and

Potential barriers to movements and habitat selection of pygmy rabbits (Brachylagus idahoensis) after experimental translocation

Creator:: Lawes, Timothy J. (Timothy James)
Abstract:: I assessed potential barriers to dispersal using homing tendency and investigated the movements and settlement site selection of pygmy rabbits (Brachylagus idahoensis) after short distance translocations in southeastern Oregon from June – December 2008. I captured, radio marked, and translocated 59 pygmy rabbits 1-2 km across landscapes with (1) continuous...
Resource Type:: Masters Thesis
Full Text:: Appendix K. Displacement distances of experimentally translocated pygmy rabbits during a study on their

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:: ..........................................................................................................134 K. Model selection results for study-wide habitat categories for pygmy rabbits on four study

Environmental contaminants and ecology of bald eagles in southcentral Oregon

Creator:: Frenzel, Richard Wilmarth
Abstract:: Food habits and levels of organochlorine compounds, lead, and mercury in resident and wintering bald eagles were studied in southcentral Oregon and California, 1979-83. Food habits were assessed by examination of castings from winter communal roosts, identification of 2938 prey items found at nest sites and foraging areas, and observations...
Resource Type:: Dissertation
Full Text:: Klamath National Forest, L. Mullen of the Deschutes National Forest, K. Harrington and C. Smith of the

Behavioral responses of Rocky Mountain Elk (Cervus elaphus) to recreational disturbance

Creator:: Naylor, Leslie M.
Abstract:: I measured responses of free-ranging Rocky Mountain elk (Cervus elaphus) to recreational disturbance at Starkey Experimental Forest and Range, Oregon from April to October, 2003 and 2004. Resting, feeding, and travel activities of 13 cow elk were recorded at 5-minute intervals using Actiwatch™ motion sensors. Elk were subjected to four...
Resource Type:: Masters Thesis
Full Text:: , Abe Clarke, Cilla Coe, Kent Coe, Rachel Cook, Chris Cross, Keith Cubbon, Jeannine Davis, Leslie

Habitat use and densities of cavity-nesting birds in the Oregon Coast Range

Creator:: Nelson, S. Kim
Abstract:: I studied abundance patterns and habitat use of eight cavitynesting bird species in the Coast Ranges of Western Oregon during the spring and summer of 1985 and 1986. Three age classes of unmanaged Douglas-fir (Pseudotsuga menziesii) stands were selected for study: young (40-80 yrs), mature (80-200 yrs), and old-growth (>200...
Resource Type:: Masters Thesis
Full Text:: relationships or Type I errors (Meslow and Keith 1971, Marcot 1985). Second, stepwise multiple linear

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:: : 4 . ra ys B ay ew C at hl am et B ay e ct , W as hi ng to n ar k A ld ric h O ln t

Post-hatching survival and productivity of American avocets at drainwater evaporation ponds in the Tulare Basin, California

Creator:: Marn, Carolyn M. (Carolyn Mary), 1962-
Abstract:: Evaporation ponds that dispose of agricultural drainwater provide attractive habitat for waterbirds but may result in contaminant exposure that impairs reproduction. I estimated post-hatching survival and evaluated productivity estimates for American avocets (Recurvirostra americana) nesting at evaporation ponds in the Tulare Basin, California from 1991 to 1993. Avocets and Black-necked...
Resource Type:: Dissertation
Full Text:: throughout the years, especially Harry Ohlendorf, Roger Hothem, Joseph Skorupa, Keith Miles, Cliff Hui

ScholarsArchive@OSU

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

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

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

Potential barriers to movements and habitat selection of pygmy rabbits (Brachylagus idahoensis) after experimental translocation

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

Environmental contaminants and ecology of bald eagles in southcentral Oregon

Behavioral responses of Rocky Mountain Elk (Cervus elaphus) to recreational disturbance

Habitat use and densities of cavity-nesting birds in the Oregon Coast Range

Human-eagle interactions on the lower Columbia River

Post-hatching survival and productivity of American avocets at drainwater evaporation ponds in the Tulare Basin, California

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