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The principle approach in teaching mechanical technology in agriculture

Creator:: Krueger, August William
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF AUGUST WILLIAM KRUEGER JR for the

Synecological effects of cattle grazing riparian ecosystems

Creator:: Kauffman, John Boone
Abstract:: In 1978, a ten year project was begun to examine the synecological effects of livestock grazing riparian ecosystems. A multitude of biotic arid physical factors, many which were unique to riparian ecosystems, interacted to form a complex and diverse riparian ecosystem. A total of 256 stands of vegetation representing 60...
Resource Type:: Masters Thesis

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
Full Text:: this whole experience. I want to thank my major professor and friend, Dr. William C. Krueger, for his

Responses of vegetation and sheep to three grazing pressures

Creator:: Thetford, Frank Oren
Abstract:: A study was conducted over a two year period, 1973 through 1974, on perennial ryegrass-subclover pastures with stocking rates of 7.4 (moderate), 9. 9 (heavy), and 12.4 (overstocked) ewes per hectare to establish guidelines on stocking intensity for dryland improved pastures in western Oregon. Climatic conditions varied annually and caused...
Resource Type:: Dissertation
Full Text:: to Dr. William C. Krueger for his assistance and supervision during the study and especially for

Growth characteristics and site potentials of perennial grass species

Creator:: Borman, Michael M.
Abstract:: In this study I assessed the potentials of selected, established perennial grasses to maintain site occupancy in the foothills ecosystem of the Rogue River Valley of southwest Oregon which is currently dominated by a variety of annual plants. The first evaluation compared growth curves of the perennial grasses and contrasted...
Resource Type:: Dissertation
Full Text:: contribute a quality program to the Department of Rangeland Resources. Dr. William C. Krueger has been not

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
Full Text:: you. To Dr. William C. Krueger, thank you for taking a chance on a former economist. Thank you

Ecological relationships between cervid herbivory and understory vegetation in old-growth Sitka spruce-western hemlock forests in western Washington

Creator:: Happe, Patricia Jenkins
Abstract:: The relationships between black-tailed deer (Odocoileus hemionus columbianus) and Roosevelt elk (Cervus elaphus roosevelti) herbivory and understory vegetation in unmanaged forests in Olympic National Park were studied from 1985 - 1989. From 1985 to 1986 I studied the impact of cervid exclusion on shrub, fern, and forb forage quality, tannin...
Resource Type:: Dissertation
Full Text:: Forests in Western Washinqton Abstract approved: /'L William rueg The relationships between black-tailed

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:: MOUNTAIN RANGELANDS ,/ Redacted for privacyAbstract approved: W. C. Krueger Several aspects of cattle

The impact of three stocking intensities and four grazing treatments on the carbohydrate reserves of perennial ryegrass (Lolium perenne L.)

Creator:: El Hassan, Babiker Ahmed, 1940-
Abstract:: A study was conducted during 1974 and 1975 to evaluate the impact of stocking intensity and season of grazing upon carbohydrate concentration, biomass of storage organs, and total carbohydrate per plant in the roots and crowns of perennial ryegrass (Lolium perenne L.) in improved rangelands in Western Oregon. The stocking...
Resource Type:: Dissertation
Full Text:: Privacy - -- Dr. /William C. Krueger A study was conducted during 1974 and 1975 to evaluate the im

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
Full Text:: BIG GAME ON FOOTHILL RANGELANDS Redacted for privacyAbstract approved: Dr. William/C. Krueger The

ScholarsArchive@OSU

The principle approach in teaching mechanical technology in agriculture

Synecological effects of cattle grazing riparian ecosystems

Interactions of cattle and chinook salmon

Responses of vegetation and sheep to three grazing pressures

Growth characteristics and site potentials of perennial grass species

Application of nonequilibrium ecology to managed riparian ecosystems

Ecological relationships between cervid herbivory and understory vegetation in old-growth Sitka spruce-western hemlock forests in western Washington

Grazing behavior and distribution of cattle on mountain rangelands

The impact of three stocking intensities and four grazing treatments on the carbohydrate reserves of perennial ryegrass (Lolium perenne L.)

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

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