Index Catalog // ScholarsArchive@OSU

Black bear population ecology

Creator:: Lindzey, Frederick Grier
Abstract:: Despite relatively mild weather, black bears (Ursus americanus) in southwestern Washington entered dens and remained for an average of 126 days. Bears entered their dens during a 5-week period which began on 21 October. A significant difference (P < 0.05) was found among the average dates of den entrance of...
Resource Type:: Dissertation
Full Text:: Black bear population ecology AN ABSTRACT OF THE

Predator Conservation and Trophic Ecology

Creator:: Wolf, Christopher
Abstract:: Many of Earth’s terrestrial large carnivore species are threatened with extinction. As a result, some of the ecological effects associated with these species may be lost. With the goal of furthering large carnivore conservation research, I conduct three global scale analyses involving these species. First, I explore prey depletion as...
Resource Type:: Dissertation
Full Text:: and Trophic Ecology. Abstract approved

The ecology of Mountain Quail in Oregon

Creator:: Pope, Michael D. (Michael Dickens)
Abstract:: Mountain Quail (Oreortyx pictus) populations have declined in many areas of the western Great Basin during the past century. Yet the life history of this species is little known. From 1997 to 2000, I studied radio-marked Mountain Quail in Hell's Canyon in northeastern Oregon, in the Cascade Mountains of southwestern...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Wildlife Science presented on February 22, 2002. Title: The Ecology of

Blue grouse winter ecology in northeastern Oregon

Creator:: Pelren, Eric C.
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy in Wildlife Science presented on June 21. 1996. Title: Blue Grouse Winter Ecology

Larval ecology of Pandalus jordani Rathbun

Creator:: Rothlisberg, Peter Charles
Resource Type:: Dissertation
Full Text:: Larval ecology of Pandalus jordani Rathbun AN ABSTRACT OF

Physiological ecology of western juniper (Juniperus occidentalis hook. subsp. occidentalis)

Creator:: Miller, Patricia M.
Abstract:: Patterns and costs of root/shoot allocations, response to reductions of above and below-ground tissue and to fertilization with nitrate and ammonium, and seasonal courses of physiological processes were measured on juvenile, small-adult, and large-adult Juniperus occidentalis growing in the field under ambient environmental conditions in eastern Oregon. Adult foliage had...
Resource Type:: Dissertation

The historic and contemporary ecology of western Cascade meadows : archeology, vegetation, and macromoth ecology

Creator:: Highland, Steven A.
Abstract:: Montane meadows in the western Cascades of Oregon occupy approximately 5% of the landscape, but contribute greatly to the region's biodiversity. Western Cascades meadows are dynamic parts of the landscape and have contracted by over 50% in the past two hundred years in the HJ Andrews Experimental Forest (hereafter Andrews...
Resource Type:: Dissertation
Full Text:: Contemporary Ecology of Western Cascade Meadows: Archeology, Vegetation, and Macromoth Ecology Abstract

The ecology of the timberline and alpine vegetation of the Three Sisters

Creator:: Van Vechten, George Wendell, III
Abstract:: This is a study of the ecology of the timberline and alpine vegetation of the Three Sisters which are located in the central Oregon Cascades. The Sisters are a close group of three 1O,000-foot volcanic peaks. Volcanic activity within the last few hundred years as well as recent glaciation have...
Resource Type:: Dissertation

The landscape ecology of secondary tropical forest in montane Costa Rica

Creator:: Helmer, Eileen Hoey
Abstract:: Previous difficulties mapping tropical forest successional stage with satellite imagery may be one of the reasons why little is known about what socioeconomic and biophysical factors control tropical secondary forest pattern over landscapes. Additional remote sensing challenges occur in regions with steep topography, because the spectral responses of land covers...
Resource Type:: Dissertation

Fire ecology and management in plant communities of Malheur National Wildlife Refuge, southeastern Oregon

Creator:: Young, Richard P.
Abstract:: This research assesses prescribed burning as a habitat management technique in wetlands and associated upland communities of Malheur National Wildlife Refuge, southeastern Oregon. Experimental burns were conducted to evaluate fire behavior and effects in wetland and upland habitats, and, fire effects on Cirsium arvense. Wetland plant communities were monotypic stands...
Resource Type:: Dissertation

ScholarsArchive@OSU

Black bear population ecology

Predator Conservation and Trophic Ecology

The ecology of Mountain Quail in Oregon

Blue grouse winter ecology in northeastern Oregon

Larval ecology of Pandalus jordani Rathbun

Physiological ecology of western juniper (Juniperus occidentalis hook. subsp. occidentalis)

The historic and contemporary ecology of western Cascade meadows : archeology, vegetation, and macromoth ecology

The ecology of the timberline and alpine vegetation of the Three Sisters

The landscape ecology of secondary tropical forest in montane Costa Rica

Fire ecology and management in plant communities of Malheur National Wildlife Refuge, southeastern Oregon

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