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Habitat factors affecting pronghorn use of playas in south central Oregon

Creator:: Good, James Ronald
Abstract:: Pronghorn (Antilocapra americana) use of four playas (intermittent lakebeds) on Hart Mountain National Antelope Refuge (NAR) in south central Oregon was studied during the summers of 1974 and 1975. Percent canopy cover of playa vegetation, plant phenology, percent desiccated vegetation, soil moisture, available surface water and pronghorn use of range...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES RONALD GOOD for the degree

A comparison of the reproductive rates of zooplankton in East and Paulina Lakes

Creator:: Alevras, Ronald Allen
Resource Type:: Masters Thesis
Full Text:: East and Paulina Lakes by Ronald Allen Alevras A THESIS submitted to Oregon State University in

Biology of juvenile sockeye salmon resident in Chignik River, Alaska

Creator:: Iverson, Ronald Albert
Abstract:: The life history of juvenile sockeye salmon (Oncorhynchus nerka) resident in Chignik River, Alaska, represents a departure from the lacustrine, pelagic existence typical of juveniles of this species. For this reason, the distribution, relative abundance in different parts of the river, growth, and upstream and downstream movements of juvenile sockeye...
Resource Type:: Masters Thesis
Full Text:: CHIGNIK RIVER, ALASKA by RONALD ALBERT IVERSON A THESIS submitted to OREGON STATE UNIVERSITY in

Effects of elevated temperature on juvenile Coho salmon and benthic invertebrates in model stream communities

Creator:: Iverson, Ronald Albert
Abstract:: Juvenile coho salmon (Oncorhynchus kisutch (Walbaum)) and aquatic invertebrates were subjected to experimentally increased, but naturally fluctuating, temperatures in a model stream channel. Coho of the 1969, 1970, and 1971 year classes were reared in the heated model stream and in an unheated control stream, both located at the Oak...
Resource Type:: Dissertation

An evaluation of attempts to reestablish the sea otter in Oregon

Creator:: Jameson, Ronald James
Abstract:: During the summers of 1970 and 1971 a total of 95 sea otter (Enhydra lutris) were shipped to Oregon from Amchitka Island, Alaska. The 1970 shipment consisted of 31 otter which were to be released on the southern Oregon Coast near the town of Port Orford. Two of these animals...
Resource Type:: Masters Thesis
Full Text:: . An Evaluation of Attempts to Reestablish the Sea Otter in Oregon Ronald James Jameson A THESIS

Life history and evolutionary adaptation of Pacific salmon and its application in management

Creator:: Wevers, Mary Jo
Abstract:: An approach to understanding and managing anadromous salmon, steelhead, and sea-run cutthroat trout (Oncorhynchus spp.) based on life history and evolutionary adaptive capacities of species and stocks is presented. Species, stocks, and local populations are viewed as systems that are continuously adapting to changing environmental conditions. They have the potential...
Resource Type:: Dissertation
Full Text:: organization forms a template for genus, species, stock, and local population life history organization

A Multi-Year Longitudinal Study of Water Quality Parameters in Four Salmon-Bearing and Recreational Streams on Mount Hood, Oregon

Creator:: Wasowski, Ronald, Alexander, David, Kolmes, Steven, Banet, Nathan, Card, Amy, Haines, Morgan, Kolmes, Elijah, Northcutt, Kelly, Roemer, Derek, and Webber, Sarah
Abstract:: Four streams-Clear Fork, Lost Creek, Camp Creek and Still Creek-in northwestern Oregon's Sandy River Basin were monitored for temperature, dissolved oxygen levels, and fecal bacterial concentrations in a multi-year analysis examining stream health for recreational users and anchor habitat for Pacific Salmon. Temperatures were recorded using micro -T temperature loggers...
Resource Type:: Article
Full Text:: pone.0070453 1..14 A Multi-Year Longitudinal Study of Water

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:: The Van Dyke's salamander (Plethodon vandyke,) is a rare species endemic to Washington State. It has

An analysis of guild structure of avian communities, Columbia River, Oregon

Creator:: Noyes, Cecilia Lea Barham
Abstract:: Effects of habitat and season on guild structure of avian communities were examined for islands in the estuary zone of the Columbia River, Oregon. Bird species were classified into guilds according to their major food item, typical foraging substrate, and foraging behavior. Variation in community structure indices (number of guilds,...
Resource Type:: Masters Thesis
Full Text:: communities, Columbia River, Oregon. Abstract approved: Redacted for Privacy John A. CrawnYd Effects of

An analysis of avian communities on a dredged material island

Creator:: Edwards, Daniel K.
Resource Type:: Masters Thesis
Full Text:: An Analysis of Avian Communities on a Dredged Material

ScholarsArchive@OSU

Habitat factors affecting pronghorn use of playas in south central Oregon

A comparison of the reproductive rates of zooplankton in East and Paulina Lakes

Biology of juvenile sockeye salmon resident in Chignik River, Alaska

Effects of elevated temperature on juvenile Coho salmon and benthic invertebrates in model stream communities

An evaluation of attempts to reestablish the sea otter in Oregon

Life history and evolutionary adaptation of Pacific salmon and its application in management

A Multi-Year Longitudinal Study of Water Quality Parameters in Four Salmon-Bearing and Recreational Streams on Mount Hood, Oregon

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

An analysis of guild structure of avian communities, Columbia River, Oregon

An analysis of avian communities on a dredged material island

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