Index Catalog // ScholarsArchive@OSU

Grazing Effects on Fuels and Plant Community Characteristics across Three Community Types in Wyoming Big Sagebrush Steppe

Creator:: Thomas, Tyler W.
Abstract:: Livestock grazing is the prominent land use in Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis [Beetle & A. Young] S.L. Welsh) steppe and has been present since the late 1800’s. There have been calls to remove livestock grazing from rangelands as historic grazing practices resulted in the degradation of some...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Rangeland Ecology and Management presented on September 8

Plant Species Diversity and Pasture Productivity of a High-input Dairy Pastureland System and a Low-input Sheep Pastureland System in Western Oregon, USA

Creator:: Anderson, Jordan D.
Abstract:: The sustainable use of natural resources, including the goods and services provided by pasturelands and rangelands, is of growing importance due to climatic uncertainty and population growth. Maintaining high productivity in livestock operations is necessary as land availability diminishes and global populations rise. The potential negative impacts to the environment...
Resource Type:: Masters Thesis
Full Text:: . Anderson for the degree of Master of Science in Rangeland Ecology and Management presented on May 31

Assessing Sagebrush-obligate Songbird Abundance: Considerations of Landscape-level Threats and Umbrella Species Efficacy

Creator:: Harrington, Alan H.
Abstract:: The umbrella species concept is a single-species conservation strategy built on the notion that indirect protections are provided for multiple species that occupy the same area as a single, or umbrella, species. The utility of the umbrella species concept relies on similar associations of abundance, distribution, life history requirements, and...
Resource Type:: Masters Thesis
Full Text:: . Harrington for the degree of Master of Science in Rangeland Ecology and Management presented on March 15

Restoration of Annual Grass-invaded Landscapes in the Sagebrush Steppe using Perennial Grass Seed Technologies and Wyoming Big Sagebrush Transplanting

Creator:: Holfus, Corinna M.
Abstract:: Within the sagebrush steppe ecosystem, invasive annual grasses are of growing management concern as they outcompete native vegetation, change the fundamental nutrient cycling processes, decrease biodiversity, and increase frequency of wildfires. The most widely used and effective management tool to decrease invasive annual grass abundance, is the use of pre-emergent...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Rangeland Ecology and Management presented on December 2

Comparison of Common Ravens in Sage-grouse Core and Non-Core Areas: Assessing Predator Densities Related to Anthropogenic Features

Creator:: Revekant, Claire L.
Abstract:: Greater sage-grouse (Centrocercus urophasianus: hereafter sage-grouse) abundance and distribution in North America has declined over the last century. Many factors have contributed to this decline, including habitat loss and fragmentation from human development with an associated potential for increased predation. While human development has been connected to lower sage-grouse demographic...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Rangeland Ecology and Management presented on June 15, 2021

Vegetation as Impacted by Soil Characteristics and Moisture in a Conservation Wetland, Willamette Valley, OR

Creator:: Aslan, Fevziye
Abstract:: Wetland degradation has negative influences on wetland functions and services. The understanding of wetland functions requires the intersection of two science disciplines, ecohydrology and plant physiology for a correct approach on wetland restoration and management. Although studies assessing ecohydrological relationships to protect wetlands are relatively common, studies evaluating both ecohydrological...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Rangeland Ecology and Management presented on June 12, 2020

Forb Community Response to Various Disturbances in the Pacific Northwest Bunchgrass Prairie

Creator:: Watson, Brogan L.
Abstract:: Observed declines in native pollinator species worldwide has generated concern and focused research into the disturbances, past and present, which may have contributed to these losses. In grasslands, for example, habitat degradation and fragmentation from historical and current crop production and livestock grazing has left only a few remnants of...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Rangeland Ecology and Management presented on June 4, 2020. Title

The Ecological Recovery of Saguaro National Park after Removal of Cattle Grazing and Associated Succession

Creator:: Summers, Ryan J.
Abstract:: In the area that is now Saguaro National Park East, grazing began in the 1880's. Because of the impact to the iconic saguaro cactus as well as all palatable plant species in the area, ecological damage in the park were determined to be so great that anti-grazing conservationists challenged the...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Rangeland Ecology & Management presented on May 6, 2020

Activated carbon incorporated into herbicide protection pods as a seed amendment technology for revegetation

Creator:: Clenet, Danielle R.
Abstract:: Reestablishing native perennial vegetation in annual grass-invaded rangelands is critical to restoring ecosystems, especially following wildfires. Controlling invasive annual grasses is essential to increasing revegetation success; however, pre-emergent herbicides used to control annual grasses prohibit immediate seeding due to non-target herbicide damage. Thus, seeding is often delayed one year following...
Resource Type:: Masters Thesis
Full Text:: the degree of Master of Science in Rangeland Ecology and Management presented on December 2, 2019

The Response of Ventenata dubia to Prescribed Fire and Ungulate Grazing on the Pacific Northwest Bunchgrass Prairie

Creator:: Ridder, Luke W.
Abstract:: Ventenata dubia L. (ventenata) is an introduced, winter annual grass that has recently been raising concerns across the Pacific Northwest Bunchgrass Prairie and the Palouse Prairie. It is well established now in pasturelands, croplands, and a variety of ecosystems including grasslands, sagebrush steppe, ponderosa pine forests and woodlands. Ventenata is...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Rangeland Ecology and Management Presented on June 7, 2019. Title: The

ScholarsArchive@OSU

Grazing Effects on Fuels and Plant Community Characteristics across Three Community Types in Wyoming Big Sagebrush Steppe

Plant Species Diversity and Pasture Productivity of a High-input Dairy Pastureland System and a Low-input Sheep Pastureland System in Western Oregon, USA

Assessing Sagebrush-obligate Songbird Abundance: Considerations of Landscape-level Threats and Umbrella Species Efficacy

Restoration of Annual Grass-invaded Landscapes in the Sagebrush Steppe using Perennial Grass Seed Technologies and Wyoming Big Sagebrush Transplanting

Comparison of Common Ravens in Sage-grouse Core and Non-Core Areas: Assessing Predator Densities Related to Anthropogenic Features

Vegetation as Impacted by Soil Characteristics and Moisture in a Conservation Wetland, Willamette Valley, OR

Forb Community Response to Various Disturbances in the Pacific Northwest Bunchgrass Prairie

The Ecological Recovery of Saguaro National Park after Removal of Cattle Grazing and Associated Succession

Activated carbon incorporated into herbicide protection pods as a seed amendment technology for revegetation

The Response of Ventenata dubia to Prescribed Fire and Ungulate Grazing on the Pacific Northwest Bunchgrass Prairie

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