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Habitat alteration and human disturbance : their impact on cougar habitat utilization in southwest Oregon

Creator:: Gagliuso, Robert A.
Abstract:: Eight cougars were radio-collared and monitored during 1985 - 1987. Home range size, determined by minimum convex polygons, averaged 153.1 km2 for females, 543.5 km2 for males. Core home range size, determined by harmonic mean analysis, averaged 21.7 km2 for females, 17.9 km2 for males. Home ranges of males and...
Resource Type:: Masters Thesis

Efficacy of sodium fluoroacetate in reducing ground squirrel damage to alfalfa

Creator:: Kalinowski, Stephan A.
Abstract:: Damage by Belding's ground squirrel (Spermophilus beldingi) to alfalfa (Medicago sativa) and the efficacies of various poisoning regimes to reduce damage were evaluated during March-July, 1976 and 1977. Regimes examined were designed to measure the effect of 3 variables on damage to alfalfa caused by squirrels including; timing of application,...
Resource Type:: Masters Thesis

Diurnal bird use of snags on clearcuts in central coastal Oregon

Creator:: Schreiber, Barry
Abstract:: The effect of snag retention on clearcuts on breeding bird populations was evaluated in the Douglas-fir (Pseudotsuga menziesii) dominated forest in central coastal Oregon. Diurnal bird species on 14 clearcut sites (< 4 years old) were censused during two breeding seasons. On clearcuts containing high numbers of snags, cavity-nesting birds...
Resource Type:: Masters Thesis

Food selection, home range, and movements of coyotes on and off a sanctuary in Klamath Basin

Creator:: Shoemaker, Suzanne
Abstract:: Radio-telemetry and scat analysis were used to investigate daily and seasonal movement patterns and food selection of a protected coyote population on Tulelake National Wildlife Refuge (TLNWR) and adjacent Lava Beds National Monument (LABE) in northeastern California. Study emphasis was on evaluation of movements on and off the sanctuary, and...
Resource Type:: Masters Thesis

Leadership behavior and foraging strategies of a herd of Roosevelt elk inhabiting the Oregon Coast Range

Creator:: Marquez, Monica
Abstract:: A cow-calf herd of Roosevelt elk (Cervus elaphus roosevelti) resident to Indian Creek Research Center (ICRC), Oregon was observed June-August, 1985 and March-August, 1986. Cows at ICRC reproduced in alternate years; cows with calves led the herd a significantly greater number of times than cows without calves (1985, P <...
Resource Type:: Masters Thesis
Full Text:: information on the study site and Bruce Davitt for the microhistological analysis. I thank Drs. David S

Ecology and behavior of bison in the Henry Mountains, Utah

Creator:: Van Vuren, Dirk
Abstract:: Aspects of bison ecology and behavior were studied in the Henry Mountains, Utah during summer 1977 and summer 1978. Foraging distributions of bison and of cattle were compared to elevation, slope, horizontal distance from water, vertical distance from water, aspect, and availability of preferred forage. The effect of bison-cattle interactions...
Resource Type:: Masters Thesis

Songbird populations of precommercially thinned and unthinned stands of ponderosa pine in east-central Washington

Creator:: Putnam, Betsy June
Abstract:: Populations of breeding birds and forest composition and structure were examined in preconimercially thinned and unthinned ponderosa pine (Pinus ponderosa Laws.) stands in east-central Washington. Stands were composed of predominantly ponderosa pine with a multi-aged structure made up of small even-aged clumps. Thinning reduced the density and foliage volume of...
Resource Type:: Masters Thesis

The effects of three levels of range improvements on Roosevelt elk nutrition

Creator:: Mereszczak, Ihor Myroslaw
Resource Type:: Masters Thesis
Full Text:: composed of: Dr. Thomas Bedell, Dr. Martin Vavra and Dr. David deCalesta is gratefully acknowledged. I

Lamb production differences of bighorn sheep on Hart Mountain, Oregon

Creator:: Cottam, Douglas F.
Resource Type:: Masters Thesis

Population characteristics and habitat utilization of bighorn sheep, Steens Mountain, Oregon

Creator:: Van Dyke, Walter A.
Abstract:: A herd of re-introduced California bighorn sheep (Ovis canadensis californiana) was studied from 15 June 1976 to 31 August 1977. Thirteen major and seven minor habitats were delineated and described. Habitat use by bighorns was observed throughout the study and a habitat preference value (H.P.V.) was calculated based on use...
Resource Type:: Masters Thesis
Full Text:: am grateful to my committee members - D. S. deCalesta, A. H. Winward, and T. P. Kistner, for their

ScholarsArchive@OSU

Habitat alteration and human disturbance : their impact on cougar habitat utilization in southwest Oregon

Efficacy of sodium fluoroacetate in reducing ground squirrel damage to alfalfa

Diurnal bird use of snags on clearcuts in central coastal Oregon

Food selection, home range, and movements of coyotes on and off a sanctuary in Klamath Basin

Leadership behavior and foraging strategies of a herd of Roosevelt elk inhabiting the Oregon Coast Range

Ecology and behavior of bison in the Henry Mountains, Utah

Songbird populations of precommercially thinned and unthinned stands of ponderosa pine in east-central Washington

The effects of three levels of range improvements on Roosevelt elk nutrition

Lamb production differences of bighorn sheep on Hart Mountain, Oregon

Population characteristics and habitat utilization of bighorn sheep, Steens Mountain, Oregon

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