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Filtering by: Committee Member Vavra, Martin Remove constraint Committee Member: Vavra, Martin

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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
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
The effects of three levels of range improvements on Roosevelt elk nutrition

Creator:

Mereszczak, Ihor Myroslaw

Resource Type:

Masters Thesis
Nutritional ecology of cervids in old-growth forests in Olympic National Park, Washington

Creator:

Leslie, David M.

Abstract:

Nutritional ecology of unhunted and sympatric populations of Roosevelt elk, Cervus elaphus roosevelti, and Columbian black-tailed deer, Odocoileus hemionus columbianus, was investigated in old-growth forests of the Hoh Valley in Olympic National Park, Washington, from September 1979 to November 1981. Seasonal diets of both cervids generally were comprised of common...

Resource Type:

Dissertation
Food habits and diet quality of deer and cattle and herbage production of a sagebrush-grassland range

Creator:

Hilken, Thomas O.

Abstract:

Research was conducted on the Keating rangelands in north-eastern Oregon to determine the food habits of deer and cattle and similarity of their diets, and to estimate deer and cattle months of grazing on both a quantitative and nutritional basis. Data were collected during the winters of 1978-1979, 1979-1980 and...

Resource Type:

Masters Thesis
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
Relative palatabilities of Great Basin forages and mechanisms elicting selective grazing by cattle

Creator:

Cruz-Guerra, Ruben

Resource Type:

Masters Thesis
Application of stream classification and historical land uses for managed riparian systems of Eastern Oregon

Creator:

Zweygardt, Louanne R.

Abstract:

Twelve stream segments in the Silvies River drainage system were classified in the fall of 1993 and again in 1994, using a morphological classification of natural rivers (Rosgen 1994). Bankfull flow of stream channels is the key feature of this system. Measurement of bankfull is used in the calculation of...

Resource Type:

Masters Thesis
Application of nonequilibrium ecology to managed riparian ecosystems

Creator:

Stringham, Tamzen K.

Abstract:

Seasonal trends in water table level and soil moisture for four plant community types within an irrigated eastern Oregon riparian zone were described. Aboveground biomass, species composition, litter, percent bareground and percent basal cover of key plant species and life forms were measured. The relationship between water table levels and...

Resource Type:

Dissertation
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

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Academic Affiliation

Rangeland Resources10
Animal Sciences1
Forest Engineering Resources and Management1

Advisor

Krueger, William C.6
Buckhouse, John C.1
Delcurto, Timothy1
Ganskopp, David C.1
Hibbs, David E.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1974 to 2012

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Committee Member

Vavra, Martin[remove]13
Buckhouse, John2
Krueger, William C.2
Anthony, Robert1
Anthony, Robert G.1
more Committee Members »

Creator

Bryant, Larry Duane1
Clark, Patrick Eugene1
Cruz Guerra, Ruben1
Eisenberg, Cristina1
Hilken, Thomas O.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1974 to 2012

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Decade

2010-20191
2000-20091
1990-19995
1980-19893
1970-19793

Degree Field

Rangeland Resources10
Animal Science1
Forest Resources1
Wildlife Science1

Degree Level

Doctoral7
Master's6

Degree Name

Doctor of Philosophy (Ph.D.)7
Master of Science (M.S.)6

Language

English [eng]13

License

All rights reserved2

Non-Academic Affiliation

Oregon State University. Graduate School13

Peer Reviewed

No13

Resource Type

Dissertation7
Masters Thesis6

Rights Statement

Copyright Not Evaluated11
In Copyright2

Subject

Forage plants -- Oregon2
Animal nutrition -- Research1
Beef cattle -- Food -- Oregon -- Wallowa Mountains1
Beef cattle -- Oregon -- Wallowa Mountains -- Nutrition1
Bluebunch wheatgrass1
more Subjects »

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