Index Catalog // ScholarsArchive@OSU

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:: bighorn sheep, Steens Mountain, Oregon AN ABSTRACT OF THE THESIS OF WALTER A. VAN DYKE for the degree

Ecology of populations of Van Dyke's salamanders in the Cascade Range of Washington State

Creator:: McIntyre, Aimee P.
Abstract:: The Van Dyke's salamander (Plethodon vandyke,) is a rare species endemic to Washington State. It has been found in cool moist microhabitats along streams, splash zones of waterfalls, and headwater seeps. We explored the association of the Van Dyke's salamander with hydrologic condition, geomorphology, disturbance characteristics, and vegetation structure in...
Resource Type:: Masters Thesis
Full Text:: ioiulations of Van Dyke's salamanders in the Cascade Range of Washington State Abstract approved: Richard

Estimation of chronically safe zinc concentrations with steelhead trout (Salmo gairdneri) emphasizing ventilatory responses

Creator:: Cairns, Michael A.
Resource Type:: Masters Thesis
Full Text:: approved: Richard A. Tubb A 96 hr toxicity test, measuring ventilation rate, was developed to estimate

Ecology of Columbian black-tailed deer fawns in western Oregon

Creator:: Pamplin, Nathan P.
Abstract:: Little is known about Columbian black-tailed deer (Odocoileus hemionus columbianus) because of their elusive nature and the logistical difficulty of studying them in densely forested and mountainous terrain. The Oregon Department of Fish and Wildlife has identified fawn survival as an important gap in the current knowledge of demography and...
Resource Type:: Masters Thesis
Full Text:: expresses sincere appreciation to Drs. Richard A. Schmitz and DeWaine H. Jackson, the co-principal

Selected life history aspects of American shad (Alosa sapidissima) and predation on young-of-the-year shad in Lake Umatilla of the Columbia River

Creator:: Stainbrook, Cris Eric
Abstract:: Selected life history aspects of American shad, Alosa sapidissima, collected in Lake Umatilla of the Columbia River during 1980 and 1981 were examined and compared to other shad populations. Mean fork lengths of adult shad captured in 1981 were 405-, 415- and 423-mm for age III, IV and V males;...
Resource Type:: Masters Thesis
Full Text:: approved: Dr. Richard A. Tubb Selected life history aspects of American shad, Alosa sapidissima

Behavior and survival of coho salmon, Oncorhynchus kisutch (Walbaum), in Sashin Creek, southeastern Alaska

Creator:: Crone, Richard Allan
Abstract:: Behavior and survival in fresh water were studied for three brood years of coho salmon in Sashin Creek, Alaska, from October 1963, until September 1966. Investigations of spawning adults were conducted to determine numbers of spawners, distribution on the spawning grounds, effects on pink salmon, age composition, redd life, fecundities,...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Richard Allan Crone (Name) for

Distribution and life history of the spiny dogfish (Squalus acanthias) off the Oregon and Washington coasts

Creator:: Richards, Jaclyn M.
Abstract:: This study examines the spatial and temporal distribution and life history of the "offshore" component of the Northeastern Pacific spiny dogfish (Squalus acanthias) population. Distribution was examined in relation to latitude, depth, the Columbia River plume and large-scale climate changes. Fishery and survey data indicate that the Northeastern Pacific spiny...
Resource Type:: Masters Thesis
Full Text:: ; (C) Ketchen Strait of Georgia, 1975; (D) Jones and Geen, 1977c; (E) Saunders and McFarlane, 1993; (F

Home range, dispersal, homing and density of the Townsend mole Scapanus townsendii (Bachman) near Tillamook, Oregon

Creator:: Giger, Richard D.
Abstract:: Home range, dispersal, homing and density of Townsend's mole, Scapanus townsendii (Bachman), were studied during 1964 near Tillamook, Oregon. Additional information on the success of marking and capture techniques and the response of moles to flooding was gathered. This study was initiated to supply information which might aid in the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Richard Dee Giger for the M. S. in

Prevalence, geographic distribution, and biology of a dungeness crab, Cancer magister, microsporidian parasite

Creator:: Childers, Richard K.
Abstract:: The microsporidian parasite Nadelspora canceri infects Dungeness crabs, Cancer magister, along the United States Pacific Northwest coast. The prevalence and seasonal variation of N. canceri in Dungeness crabs from Alsea Bay, Oregon, are described based on examination of 2991 crabs collected at monthly intervals from October, 1991 to June, 1993....
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Richard K. Childers for the degree

Movement and space use by the green hermit (Phaethornis guy) in a fragmented landscape in Costa Rica

Creator:: Volpe, Noelia L.
Abstract:: Human activities have altered Earth’s ecosystems. Most biomes have experienced a 20-50% conversion to human use. Loss of habitat has obvious effects on the persistence of species. Fragmentation, however, may also negatively affect biodiversity for those species that exhibit behavioral responses to changes in habitat configuration. Such behavioral changes include...
Resource Type:: Masters Thesis
Full Text:: available alternatives that are known to be available (Jones 2001). By understanding the elements that

ScholarsArchive@OSU

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

Ecology of populations of Van Dyke's salamanders in the Cascade Range of Washington State

Estimation of chronically safe zinc concentrations with steelhead trout (Salmo gairdneri) emphasizing ventilatory responses

Ecology of Columbian black-tailed deer fawns in western Oregon

Selected life history aspects of American shad (Alosa sapidissima) and predation on young-of-the-year shad in Lake Umatilla of the Columbia River

Behavior and survival of coho salmon, Oncorhynchus kisutch (Walbaum), in Sashin Creek, southeastern Alaska

Distribution and life history of the spiny dogfish (Squalus acanthias) off the Oregon and Washington coasts

Home range, dispersal, homing and density of the Townsend mole Scapanus townsendii (Bachman) near Tillamook, Oregon

Prevalence, geographic distribution, and biology of a dungeness crab, Cancer magister, microsporidian parasite

Movement and space use by the green hermit (Phaethornis guy) in a fragmented landscape in Costa Rica

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