The problem of this thesis is to evaluate small tracts of public
domain land as to their best use in an area where the Bureau of Land
Management desires to terminate managerial responsibilities. The
area chosen is located in the Prineville District, Bureau of Land
Management and is within the...
This thesis provides the first general description of the natural variation in age
structure, growth rates, and survival in headwater populations of coastal cutthroat
trout Oncorhynchus clarkii clarkii from western Oregon, and a subsequent
synthesis of these life-history characteristics across the range of the subspecies.
Age, growth, and survival were...
Several states, including Oregon, Massachusetts and California, have been the focus of major health reform efforts in recent years. Oregon utilized a citizen-led commission to generate policy recommendations that led to the enactment of health reform legislation in 2009. This commission helped to create momentum and provide political cover for...
The education (particularly graduate education) of Americans
who were active in astronomical research between 1876 and 1941
is assessed for its effectiveness in preparing the astronomers for
careers in research. This period contains three dynamic changes:
the growth of American astronomy in becoming the world's leading
community of astronomers, the...
Marine sediments exceptionally rich in organic carbon, known as black shales, occur globally but intermittently in well correlated Cretaceous successions. The presence of black shales indicates that sporadic, ocean-wide interruption of normal respiration of marine organic matter during oxygen-deficient conditions has occurred. Submarine volcanism on a massive scale, related to...
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Robert A. Duncan
Marine sediments exceptionally rich in organic carbon, known as
Climate and terrestrial vegetation have had mutual feedbacks for nearly five hundred million years, yet both are now departing from recent historical norms, with uncertain implications for forest ecosystems. This dissertation outlines the current and potential future climate responses of lichen and bryophyte communities in the United States as part...
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Robert J. Smith for the degree of Doctor of Philosophy in Botany and Plant Pathology
presented on May 1
The Farm Enterprise Committee of the Confederated Tribes of
the Umatilla Indian Reservation requested that an evaluation be made
of the Reservation land resource for the purpose of acquisition by the
Tribe as a part of a study of the feasibility of an expanded farm
enterprise. The Committee's primary goal...
Bitterbrush [Purshia tridentata (Pursh) DC] plants were burned or
clipped, fall and spring, under different soil moisture conditions on
two sites in east-central Oregon. Treatments, on plants of an erect
growth form on the Juniperus/Artemisia-Purshia site resulted in 38% of
the fall-clipped and 40% of the spring-clipped plants sprouting. None...
Unity Reservoir in Baker County, Oregon, was chemically treated with liquid rotenone on October 17, 1962. Approximately 136 miles of streams and diversion ditches and seven small ponds, tributary to the reservoir, were treated with liquid rotenone prior to work on the reservoir. The reservoir at time of treatment contained...
Research suggests that entrepreneurs tend to seek to maximize utility when considering whether to pursue a new venture opportunity. However, when choosing whether to persist with their current venture or not, utility maximization may not be of primary importance. Using a conjoint experiment, we examine the difference between policies in...
This study addresses how parents communicate with their children about Significant Emotional Events (SEEs). A SEE is an experience that is so mentally engaging as to cause an individual to consider, examine, and possibly change one's initial values or value system. It examines parent's goals, concerns, and values related to...
Nuclear DNA flow cytometry was used to differentiate ploidy level and determine nuclear DNA content in Rubus. Nuclei suspensions were prepared from leaf discs of young leaves following published protocols with modifications that included: increasing the stain concentration, adding the stain after the RN ase treatment instead of adding it...
Habitat for wildlife species that depend on sagebrush ecosystems is of great management concern. Evaluating how management activities and climate change may affect the abundance of moderate and high-quality habitat necessitates the development of models that examine vegetation dynamics, but modeling tools for rangeland systems are limited. I developed state-and-transition...
Decline of western sage grouse (Centrocercus urophasianus phaios)
in Oregon may be related to the reduced availability of foods in upland
sagebrush (Artemisia)-grasslands used for brood-rearing. The goal of
this study was to determine primary foods of chicks and the short-term
response of brood-rearing habitat to prescribed burning at Hart...
Latina/o student enrollments in community colleges in the United States are rapidly growing, yet Latina/o student success rates have not matched this growth. There is a need for community college programs that serve Latina/o student populations more effectively and that incorporate multicultural educational practices into college programs. The purpose of...
Relations between the diversity of juvenile anadromous salmonids and pool features
were examined in a managed and a pristine watershed in Oregon during the summer of
1990. There were no differences (p>0.05) in pool depth, velocity or pool wood volumes
between streams. However, the pristine system had twice the number...
As a young adult, I have been able to witness first hand just how drastically social media is changing our culture and the way that we look at things. As social media continues to become more vastly used by its members who are in many different phases of life and...
This study investigated the relationships between selected
perceptual-motor behaviors and the following: achievement in reading,
achievement in mathematics, academic self-concept, academic
motivation and classroom behavior. This investigation was designed
to explore the suggestion of Newell Kephart that there is a relationship
between perceptual-motor behavior and school success, and to
provide...
Published September 1973. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published July 1975. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Research activities in the post-IBP phase of the Biome program prior to July 1975 were reported in Internal Report 162. Summaries of research and synthesis activities from July 1975 to August 1976 are presented here. The reports are arranged in the following order: Analysis of individual terrestrial ecosystems, which has...
Invasive knotweeds are large perennial herbs in the Polygonaceae in the genus Fallopia that are native to Asia and invasive in North America. They include Fallopia japonica (Japanese knotweed), F. sachalinensis (giant knotweed), and a hybrid species F. x bohemica (Bohemian knotweed). Widespread throughout the continent and difficult to control...
Bitterbrush (Purshia tridentata (Pursh) DC.) is one of the most widely distributed shrubs in western North America. Its value as a browse species has been recognized for more than half a century. Recent concern for the ecological significance of shrubs in natural ecosystems and the serious depletion of many big...
Published April 1993. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Fires affect animals mainly through effects on their habitat. Fires often cause short-term increases in wildlife foods that contribute to increases in populations of some animals. These increases are moderated by the animals’ ability to thrive in the altered, often simplified, structure of the postfire environment. The extent of fire...
This project examines the production histories of two films that Alfred Hitchcock directed, his Hollywood debut Rebecca (1940) and the memorable Psycho (1960). The first chapter explores how Hitchcock succeeded and failed at influencing the picture as he, despite directing the movie, had to follow the vision that his producer,...
The alien abduction phenomenon has garnered considerable media attention in the last fifteen years, including many representations in books, film, and television. An overview of significant abduction literature is presented. Contrasts and comparisons are noted between popular written accounts and both the visual representations they engender and reports outside the...
Published April 1938. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published March 1957. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published January 1920. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
A study was conducted to investigate if morphometric facial measurements could be utilized to differentiate five categorical performance types of Quarter Horses. The five categories being Western, Halter, English, Reining, and Cutting. The measurements were collected from 323 registered Quarter Horses representing animals who ranged in age from one year...
This research sought to identify the reasons physicians attributed for practicing in Oregon, the reasons for relocating out of Oregon, and the reasons for failures in recruiting physicians to Oregon. A random sample survey of 494 Oregon physicians identified the presence of economic and non-economic factors related to the recruitment...
The pages which follow contain the authors responses to a series of comments that were received in response to "A Project to Collect Scientific Data and Provide Evaluation and Recommendations for Alternative Pollution Control Strategies for the Tualatin River Basin, 11 submitted to the Oregon Department of Environmental Quality (DEQ)...