Index Catalog // ScholarsArchive@OSU

An evaluation of understory vegetation dynamics, ecosystem resilience and state and transition ecological theory in an eastern Oregon ponderosa pine forest

Creator:: Carr, Craig A.
Abstract:: Relatively recent increases in ponderosa pine abundance have effected unprecedented changes to ecosystem structure and function. Efforts to restore ponderosa pine systems are often focused on the manipulation of tree structure and the re-introduction of a more natural fire regime. Successful restoration should also incorporate understory components but information addressing...
Resource Type:: Dissertation
Full Text:: error.................................................... 115 25. Main effects and interactions of

Quality of bluebunch wheatgrass (Agropyron spicatum) as a winter range forage for Rocky Mountain Elk (Cervus elaphus nelsoni) in the Blue Mountains of Oregon

Creator:: Bryant, Larry Duane
Abstract:: This research was conducted on three study areas on elk winter ranges in Northeast Oregon. One was on the Starkey Experimental Forest and Range and the others were in the same vicinity. Plant appendages, spring and fall defoliation and fall growth of bluebunch wheatgrass were evaluated in terms of quality...
Resource Type:: Dissertation
Full Text:: DISCUSSION 108 Winger Range Evaluation 108 Nutritional Requirements of Wintering Elk 110 Fall Growth 115

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Creator:: Clark, Patrick Eugene
Abstract:: The effects of late spring defoliation on the winter forage quality of bluebunch wheatgrass (Agropyron spicatum [Pursh] Scribn. & Smith), Idaho fescue (Festuca idahoensis Elmer) and elk sedge (Carex geyeri Boott) and the response of wintering Rocky Mountain elk (Cervus elaphus nelsoni Bailey) to changes in winter range forage quality...
Resource Type:: Dissertation
Full Text:: 111 5.5 Sheep utilization of elk sedge in ecotone and stringer vegetation types 115 5.6 Forage

Spring, summer and fall use by cattle and big game on foothill rangelands

Creator:: Miller, Richard F.
Abstract:: The objectives of this study were to evaluate environmental factors influencing use of several plant communities by cattle, elk and deer; determine under story production by plant species and the amount utilized by cattle, elk and deer in certain plant communities; evaluate the interactions of range use between cattle, elk...
Resource Type:: Masters Thesis

Grazing behavior and distribution of cattle on mountain rangelands

Creator:: Gillen, Robert L.
Abstract:: Several aspects of cattle grazing behavior and distribution were studied on mountain rangeland dominated by ponderosa pine- Douglas fir, mixed conifer, and white fir forest communities in northeastern Oregon. The association between upland distribution, determined by forage utilization and by direct cattle observation, and several habitat factors was studied through...
Resource Type:: Dissertation
Full Text:: residual herb- 115 age on riparian meadows and days of grazing in the pastures. 29 Mean residual herbage

Interactions of cattle and chinook salmon

Creator:: Ballard, Teena M.
Abstract:: Spring chinook salmon spawning occurs in late summer when it is common for cattle to be present in pastures that have streams where fish spawning occurs. This two-year study addressed three main objectives relative to behavioral interactions between cattle and spring chinook salmon during the spawning life history stage. These...
Resource Type:: Masters Thesis

Conditioning bunchgrass on elk winter range

Creator:: Westenskow, Kathy Jo
Abstract:: Research was conducted near the Starkey Experimental Forest and Range in northeastern Oregon. Effects of defoliating bluebunch wheatgrass (Agropyron spicatum (Pursh) Scribn. and Smith) to increase the quality of regrowth available on elk (Cervus elaphus nelsoni) winter range were studied from 1988 through 1990. Clipping treatments were implemented to condition...
Resource Type:: Masters Thesis

Diet and feeding behavior of cattle at risk to dietary acute bovine pulmonary emphysema (DABPE)

Creator:: Elliott, Jon Carner
Abstract:: The objectives of this study were to determine the diets of cattle at risk to DABPE on stress and inciting pastures and to determine if segregated feeding groups of cattle displayed differential susceptibility to DABPE. Stress pastures were classified and mapped by plant communities and segregated feeding group areas. Cattle...
Resource Type:: Masters Thesis
Full Text:: /bluebunch wheatgrass community (subdivision 1) on the Rockpile stress pasture. 113 115 115 116 119 120

Evaluation of an early stage of the interior Columbia Basin Ecosystem Management Project : leadership, organization, and communication/interpersonal relations

Creator:: Page, Edward B.
Abstract:: Leadership, organizational structure, and communication/interpersonal relations are key functions studied. Evaluation of the Interior Columbia Basin Ecosystem Management Project (Project) considers how well those factors were managed by Forest Service and Bureau of Land Management in a bioregional assessment during a period from November, 1994 to November, 1995. Exploration of...
Resource Type:: Dissertation
Full Text:: for this project through contract number PNW 95-0657. TABLE OF CONTENTS Page INTRODUCTION 1

A comparison of four methods used in determining the diets of large herbivores

Creator:: McInnis, Michael Lindsay
Abstract:: Esophageal fistulation, stomach content analysis, fecal analysis, and ocular-estimate-by-plot are four of the most publicized methods of determining the diets of large herbivores. The principal objective of this study was to compare the relative values of each of these methods based upon information collected from bi-fistulated (esophageal and rumen) sheep...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

An evaluation of understory vegetation dynamics, ecosystem resilience and state and transition ecological theory in an eastern Oregon ponderosa pine forest

Quality of bluebunch wheatgrass (Agropyron spicatum) as a winter range forage for Rocky Mountain Elk (Cervus elaphus nelsoni) in the Blue Mountains of Oregon

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Spring, summer and fall use by cattle and big game on foothill rangelands

Grazing behavior and distribution of cattle on mountain rangelands

Interactions of cattle and chinook salmon

Conditioning bunchgrass on elk winter range

Diet and feeding behavior of cattle at risk to dietary acute bovine pulmonary emphysema (DABPE)

Evaluation of an early stage of the interior Columbia Basin Ecosystem Management Project : leadership, organization, and communication/interpersonal relations

A comparison of four methods used in determining the diets of large herbivores

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