Index Catalog // ScholarsArchive@OSU

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

Creator:: Turner, Robert Bruce
Abstract:: Studies were conducted from 1962 to 1966 to investigate the effectiveness of several practices in manipulating medusahead (Taeniatherum asperum (Sim. ) Nevski) infested and/or dominated ecosystems by releasing competition in favor of perennial grasses. Several herbicide treatments were evaluated for selective control of medusahead and cheatgrass (Bromus tectorum L. )...
Resource Type:: Dissertation
Full Text:: THESIS OF ROBERT BRUCE TURNER for the DOCTOR OF PHILOSOPHY (Name) (Degree) in RANGE MANAGEMENT

Vegetation and animal responses to grazing crested wheatgrass at three intensities and two seasons in southern Idaho

Creator:: Sharp, Lee Ajax
Abstract:: Land useable for livestock grazing in the western United States is diminishing because of spreading municipalities, irrigation developments, highway construction, recreational demands and withdrawals. Concurrently, the demand for livestock and livestock products is increasing because of a rapidly growing population. As a result, production from the grazing land that remains...
Resource Type:: Dissertation
Full Text:: represent plant condition, range condition and soil condition better than percentage of herbage removed

Vegetation-soil relations as a basis for resource management on the Ochoco National Forest of central Oregon

Creator:: Hall, Frederick C.
Abstract:: The study was conducted on the Ochoco National Forest in central Oregon. Vegetation-soil relationships were evaluated for the following objectives: 1. Develop a sound ecological foundation on which total land management decisions may be based. 2. Evaluate forest succession, stocking, and growth to improve management. 3. Develop accurate range condition...
Resource Type:: Dissertation
Full Text:: COLUMBUS HALL for the Ph. D. in Range Management (Degree) (Major) Date thesis is presented Title

Forest associations and secondary plant succession in the southern Oregon coastal range

Creator:: Bailey, Arthur Wesley, 1938-
Abstract:: Forest associations, secondary succession, and relationships of plant communities to Roosevelt elk were investigated. Stratification of vegetation into ecological units and an understanding of secondary succession by habitat-type were a necessary first step in investigations into browsing of conifers by elk. The study was jointly conducted by the Oregon State...
Resource Type:: Dissertation
Full Text:: SECONDARY PLANT SUCCESSION IN THE SOUTHERN OREGON COAST RANGE Abstract approved s Forest

Influence of range improvement practices on composition, production, and utilization of Artemisia deer winter range in central Oregon

Creator:: Urness, Philip J.
Abstract:: Recent emphasis on range improvement of sagebrush-bunch-grass types in Oregon has underscored the need for better understanding of their importance to deer winter range management. The objectives of this study were to evaluate the impact of various sagebrush control practices on the composition, production, and utilization of deer forage plants...
Resource Type:: Dissertation
Full Text:: URNESS for the Ph. D. in Range Management (Name) (Degree) (Major) Date thesis is presented Title

Seasonal cattle and sheep diets on Festuca arundinacea-Trifolium subterraneum and Lolium perenne-Trifolium subterraneum pastures in western Oregon

Creator:: Bedell, Thomas E.
Abstract:: Sheep and cattle dietary preferences were determined on tall fescue-subclover ( Festuca arundinacea-Trifolium subterraneum) and perennial ryegrass-subclover (Lolium perenne-Trifoliuni subterraneum) pastures in western Oregon during the spring and summer periods of 1964 and 1965. Esophageal-fistulated Willamette ewes and Hereford and Hereford-Angus yearling cattle were grazed separately on each pasture mixture...
Resource Type:: Dissertation
Full Text:: ecology of the total plant community. Effects of grazing on range and pasture vegetation have been

Plant succession on two Artemisia habitat types in southeastern Oregon

Creator:: Tueller, Paul T., 1934-
Resource Type:: Dissertation
Full Text:: Climate 15 Vegetation 18 REVIEW OF LITERATURE 23 Plant Succession 23 Range Condition and Trend 25

Effects of seeding and grazing on a clearcut-burn in a mixed-coniferous forest stand of the Wallowa mountain foothills

Creator:: Pettit, Russell Dean
Abstract:: Research was conducted in a mixed-coniferous forest stand that was clearcut, burned, and seeded in order to study early plant succession, grazing influences on native and introduced species, big game use, and environmental relationships vegetation, animal, and environmental research was carried out from 1965 to 1967 in three, five-acre exclosures...
Resource Type:: Dissertation
Full Text:: DEAN PETTIT for the Ph. D. (Narne of student) in Range Management presented on (Ma jor) (Degree

Ecology of bitterbrush (Purshia tridentata (Pursh) DC) in the Silver Lake Deer Winter Range, Oregon

Creator:: Segura-Bustamante, Mariano
Resource Type:: Dissertation
Full Text:: History of Range Use 16 REVIEW OF LITERATURE 20 Approaches to Study 20 Some Factors Influencing Plant

Forage production and utilization in a mixed conifer forest in the Wallowa Mountain foothills

Creator:: Young, James A. (James Albert), 1937-
Abstract:: This investigation was undertaken to characterize and evaluate the forage production and utilization of the successional vegetation of the mixed conifer forest. Field studies were carried out during the summers of 1962 through 1964 at the Eastern Oregon Experiment Station Hall Ranch which is located 12 miles southeast of Union,...
Resource Type:: Dissertation
Full Text:: . D. in Range Management (Name) (Degree) Date thesis is presented /d, / 9 G V (Major) Title

ScholarsArchive@OSU

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

Vegetation and animal responses to grazing crested wheatgrass at three intensities and two seasons in southern Idaho

Vegetation-soil relations as a basis for resource management on the Ochoco National Forest of central Oregon

Forest associations and secondary plant succession in the southern Oregon coastal range

Influence of range improvement practices on composition, production, and utilization of Artemisia deer winter range in central Oregon

Seasonal cattle and sheep diets on Festuca arundinacea-Trifolium subterraneum and Lolium perenne-Trifolium subterraneum pastures in western Oregon

Plant succession on two Artemisia habitat types in southeastern Oregon

Effects of seeding and grazing on a clearcut-burn in a mixed-coniferous forest stand of the Wallowa mountain foothills

Ecology of bitterbrush (Purshia tridentata (Pursh) DC) in the Silver Lake Deer Winter Range, Oregon

Forage production and utilization in a mixed conifer forest in the Wallowa Mountain foothills

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