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Nesting habitat and ecology of Aleutian terns on the Copper River Delta, Alaska

Creator:: Holtan, Lars H.
Resource Type:: Masters Thesis
Full Text:: ON THE COPPER RIVER DELTA, ALASKA by Lars H. Holtan Submitted to Oregon State University in

Relationships between shelf temperatures, coastal sea level, the coastal upwelling index, and English sole (Parophrys vetulus) spawning activity off Oregon

Creator:: Kruse, Gordon H.
Resource Type:: Masters Thesis

A simulation model of English sole (Parophrys vetulus) recruitment mechanisms

Creator:: Kruse, Gordon H.
Resource Type:: Dissertation

Comparative ecology of bobwhite and scaled quail in southern Texas

Creator:: Wilson, Marcia H.
Abstract:: For my research goals I addressed the theoretical importance of competition in habitat selection of 2 quails and examined the use of resources in peripheral and core areas. Methodological objectives were to determine cover and food selection of Texas bobwhite (Colinus virginianus texanus) and chestnut-bellied scaled quail (Callipepla squamata castanogastris)...
Resource Type:: Dissertation

Interaction and behavior of the redside shiner (Richardsonius balteatus) and the steelhead trout (Salmo gairdneri) in western Oregon : the influence of water temperature

Creator:: Reeves, Gordon H.
Abstract:: Water temperature influenced interactions between redside shiners and juvenile steelhead trout (≥1+) in the field and the laboratory. Distribution of the two species within various habitats was determined in three streams with different water temperature regimes. The range of habitats occupied by trout in allopatry at cool temperatures and at...
Resource Type:: Dissertation

The effects of copper on predator-prey interactions of fathead minnows (Pimephales promelas) and Daphnia pulex

Creator:: Rohm, Christina M.
Abstract:: Total copper concentrations of 10 [mu]g/l to 100 [mu]g/l appeared to alter the predator-prey interactions of fathead minnows (Pimephales promelas) and Daphnia pulex. The effect of copper concentration on the total amounts of D. pulex consumed over a 12-h period varied with the density of prey stocked hourly in the...
Resource Type:: Masters Thesis

Winter ecology of juvenile coho salmon (Oncorhynchus kisutch) in modified and unmodified sections of a coastal stream

Creator:: Phillips, Stephen H. (Stephen Homes), 1957-
Abstract:: Natural and gabion modified habitats containing coho salmon (Oncorhynchus kisutch) were observed and measured seasonally in East Fork Lobster Creek, a fifth order stream in western Oregon. Coho salmon usually inhabited backwater and secondary channel pools in winter. Large wood debris complexes and undercut banks were the primary sources of...
Resource Type:: Masters Thesis
Full Text:: kisutch) in modified and unmodified sections of a coastal stream AN ABSTRACT OF THE THESIS OF Stephen H

The development and maintenance of stream community structure and organization

Creator:: Wevers, Mary Jo
Abstract:: The goal of this study was to better understand stream communities through a perspective that might make their structure, organization, and development more understandable. This goal was approached through the following objectives: 1. To determine the assemblages of stream organisms and define subsystems within a stream community. 2. To explain...
Resource Type:: Masters Thesis
Full Text:: this project. I wish to thank Dr. Kenneth W. Cummins, Dr. Norman H. Anderson, and Dr. Robert L

Status and habitat preference of California bighorn sheep on Sheldon National Wildlife Refuge, Nevada

Creator:: Hansen, Michael Charles
Abstract:: A herd of California bighorn sheep (Ovis canadensis californiana), re-introduced to the area of Hell Creek on the Sheldon National Wildlife Refuge in northwestern Nevada, was studied from 15 June 1978 to 20 August 1980. Major vegetation and physiographic types were delineated and described. Habitat preferences were determined from field...
Resource Type:: Masters Thesis
Full Text:: that lamb Figure 1. Study area including; 300 foot contour lines (,..--.), springs CD, drainages h

Systematics and ecology of chubs (Gila : Cyprinidae) of the Alvord Basin, Oregon and Nevada

Creator:: Williams, Jack Edward
Abstract:: Seventeen populations of Gila Baird and Girard are identified from the Alvord Basin of southeastern Oregon and northwestern Nevada. Gila in the Alvord Basin occupy a wide range of habitats, including warm springs, cool springs, creeks, reservoirs, and a thermal lake. These populations became isolated in remnant habitats when waters...
Resource Type:: Dissertation
Full Text:: the collecting activities. Mr. and Mrs. H. John, B. Wiseman, and G. Sharp kindly provided materials

ScholarsArchive@OSU

Nesting habitat and ecology of Aleutian terns on the Copper River Delta, Alaska

Relationships between shelf temperatures, coastal sea level, the coastal upwelling index, and English sole (Parophrys vetulus) spawning activity off Oregon

A simulation model of English sole (Parophrys vetulus) recruitment mechanisms

Comparative ecology of bobwhite and scaled quail in southern Texas

Interaction and behavior of the redside shiner (Richardsonius balteatus) and the steelhead trout (Salmo gairdneri) in western Oregon : the influence of water temperature

The effects of copper on predator-prey interactions of fathead minnows (Pimephales promelas) and Daphnia pulex

Winter ecology of juvenile coho salmon (Oncorhynchus kisutch) in modified and unmodified sections of a coastal stream

The development and maintenance of stream community structure and organization

Status and habitat preference of California bighorn sheep on Sheldon National Wildlife Refuge, Nevada

Systematics and ecology of chubs (Gila : Cyprinidae) of the Alvord Basin, Oregon and Nevada

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