Index Catalog // ScholarsArchive@OSU

Effects of livestock grazing and small mammal populations on endangered Bradshaw's desert parsley (Lomatium bradshawii) at Oak Creek, Willamette Valley, Oregon

Creator:: Drew, Aaron D.
Abstract:: I evaluated the response of the federally listed endangered plant species Bradshaw's desert parsley (Lomatium bradshawii) to livestock grazing and small mammal depredation at Oak Creek, Linn County, Oregon, 1997-1998. I established six study blocks (three each in wooded and herbaceous pastures) with plots in each block randomly assigned to...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Wildlife Science presented on December 19. 2000. Title: Effects of Livestock Grazing

Effect of livestock grazing on native bees in a Pacific Northwest bunchgrass prairie

Creator:: Kimoto, Chiho
Abstract:: Native bees play an important role as pollinators of natural vegetation and agricultural crops. Yet many pollinators, including some native bees, are declining in numbers. Some of the potential causes of these declines are habitat destruction and degradation by various human land uses, including urban development and sprawl, construction of...
Resource Type:: Masters Thesis
Full Text:: on December 3, 2010. Title: Effect of Livestock Grazing on Native Bees in a Pacific Northwest

An economic comparison of three cattle grazing management strategies intended to improve riparian habitat and water quality

Creator:: Sharp, Jeffrey L.
Abstract:: Grazing of riparian forage by livestock may alter stream channel morphology in ways that impact nearby aquatic habitat, bank stability, vegetative cover and water quality. A number of grazing management practices have been proposed as a means to reduce the amount of time cattle spend in the riparian zone. The...
Resource Type:: Masters Thesis
Full Text:: was conducted to analyze the economic and environmental impacts of seasonal grazing and off-stream

The use of remote sensing and Geographic Information Systems (GIS) in assessing changes in stream morphology and vegetation

Creator:: Laliberte, Andrea S.
Abstract:: Remote sensing and Geographic Information Systems (GIS) are well known tools for the study of time change analysis in natural systems. However, long-term studies of riparian systems using large-scale aerial photography are less common. The purpose of this project was to combine large scale aerial photography, GIS, Global Positioning Systems...
Resource Type:: Masters Thesis
Full Text:: , deposition and island formation. We could find no association between the observed changes and the grazing

Vertebrates, arthropods, and invasive plants : an investigation of the top-down and bottom-up interactions of multiple herbivore guilds in a grassland system

Creator:: Farrell, Kelly Anne
Abstract:: Humans are increasing the scale and frequency of many natural disturbances, as well as adding novel disturbances to ecosystems. This thesis uses the arthropod community as a metric to examine the multi-trophic responses to disturbances in California grasslands. Chapter 2 explores how the long-term exclusion of native vertebrate herbivores has...
Resource Type:: Masters Thesis
Full Text:: of grazing and invasive plants on the arthropod community in a manipulative plant provenance x

Oregon spotted frog (Rana pretiosa) habitat use and herbage (or biomass) removal from grazing at Jack Creek, Klamath County, Oregon

Creator:: Shovlain, Amie M.
Abstract:: We evaluated the effects of herbage removal from livestock grazing on Oregon spotted frog (Rana pretiosa) habitat use by monitoring frog locations in grazed and matched ungrazed treatments across a range of grazing intensities at Jack Creek, Fremont-Winema National Forest, Oregon. Thirteen cattle exclosures were deployed along Jack Creek in...
Resource Type:: Masters Thesis

The effects of timber harvest and herbivory on understory vegetation and composition of beef cattle diets on forested rangelands

Creator:: Walburger, Kenric J.
Abstract:: The objectives of the experiment were to: 1) determine the relationship between overstory canopy cover and ungulate herbivory on understory production composition and diversity and 2) determine the effects of timber harvest, ungulate herbivory and season of use on botanical composition and nutritional quality of beef cattle diets. Three randomly...
Resource Type:: Dissertation
Full Text:: , timing of grazing had a greater influence on diet quality than did herbivory and(or) timber harvest

Distribution and behavior of cattle grazing riparian pastures

Creator:: Wilson, Marie A. (Marie Annette)
Abstract:: One second GPS collars were deployed on cattle in three different pastures at three separate times during the year. In each riparian pasture the vegetative communities and stream bank edge were digitally mapped using low elevation aerial photographs and checked in the field for accuracy. A 5 m buffer zone...
Resource Type:: Masters Thesis
Full Text:: Ecology and Management presented on June 8, 2011. Title: Distribution and Behavior of Cattle Grazing

Vegetation and Small Mammal Responses to Western Juniper (Juniperus occidentalis) Control in Eastern Oregon

Creator:: Morozumi, Corinne N.
Abstract:: Shrub-steppe ecosystems of western North America provide habitat for many wildlife species, are important components of public and private rangelands, and offer recreational opportunities for millions of people. They are some of the most vulnerable ecosystems in the United States and have been altered by human activities such as livestock...
Resource Type:: Masters Thesis
Full Text:: have been altered by human activities such as livestock grazing, active fire suppression, conversion

Quantifying the impacts of riparian cattle grazing at Soap Creek Ranch near Corvallis, Oregon

Creator:: McArthur, Cynthia
Abstract:: A documented case history of riparian grazing at Oregon State University's Soap Creek Ranch was conducted from 1999 to 2001. Impacts of four different riparian grazing treatments were evaluated. Emphasis was placed on investigating the relationship between riparian cattle use and water quality. Through a series of carefully designed and...
Resource Type:: Masters Thesis
Full Text:: Riparian Cattle Grazing At Soap Creek Ranch Near Corvallis, Oregon Abstract approved: Willi A documented

ScholarsArchive@OSU

Effects of livestock grazing and small mammal populations on endangered Bradshaw's desert parsley (Lomatium bradshawii) at Oak Creek, Willamette Valley, Oregon

Effect of livestock grazing on native bees in a Pacific Northwest bunchgrass prairie

An economic comparison of three cattle grazing management strategies intended to improve riparian habitat and water quality

The use of remote sensing and Geographic Information Systems (GIS) in assessing changes in stream morphology and vegetation

Vertebrates, arthropods, and invasive plants : an investigation of the top-down and bottom-up interactions of multiple herbivore guilds in a grassland system

Oregon spotted frog (Rana pretiosa) habitat use and herbage (or biomass) removal from grazing at Jack Creek, Klamath County, Oregon

The effects of timber harvest and herbivory on understory vegetation and composition of beef cattle diets on forested rangelands

Distribution and behavior of cattle grazing riparian pastures

Vegetation and Small Mammal Responses to Western Juniper (Juniperus occidentalis) Control in Eastern Oregon

Quantifying the impacts of riparian cattle grazing at Soap Creek Ranch near Corvallis, Oregon

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