Electron microscopic, histochemical and thin-layer chromatographic
techniques have been used to study some cytological changes
associated with seasonal lipid deposition in the liver of Ascaphus.
Histochemical and chromatographic information has shown that unsaturated triglycerides occur in great quantities in the liver of pre-ovulatory females and may serve as a solvent...
Montane meadows in the Cascade Range of Oregon have been declining due to tree establishment since records began. Montane meadow complexes in the H.J. Andrews Experimental Forest shrank by 60 to 75% from 1949 to 2005, but fine scale temporal and spatial processes of tree establishment in these meadows are...
A study was made of blood glucose levels and their relationship
to reproduction in gilts.
Twelve blood samples, two in each of three successive weeks,
before and after breeding were taken. Half of the samples were
obtained from gilts in a fasting state and half after feeding. All
samples were...
The mineralogy of soils involved in mass movement in Oregon's
coast range was examined to determine relationships between clay mineralogy
and landscape instability. The objectives were: 1) to determine
what kind of materials constitute the less than 2μ fraction of soils involved
in different categories of mass movement, and 2)...
Published January 1970. 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
An investigation of the effects of exogenous gonadotropic
treatments on fertility of various genetic groups of ewe lambs were
run over a six-year period. Since hormonal treatments varied and
the experimental animals were different from one breeding season to
the next, each year comprised a separate study. Hormone treatment
included...
A series of field experiments was established in 1978, 1979, and 1980 on Lower Klamath Lake where Mn deficiency of oats had been observed in previous years. The pH of the soils ranged from 7.6 to 8.3 and the organic matter content was between 17 and 19%. The objectives of...
Sound wetland management depends on an accurate comprehensive
assessment of functional wetland values. This management should account
for the cumulative impacts to regions and landscapes resulting from
piecemeal destruction and degradation of wetland resources. A regional or
watershed evaluation of wetland values can also make site-specific
assessments more efficient. The...
Published March 1977. 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
Oregon Biography Index is intended to serve primarily as a starting point in locating biographies of Oregonians. We have indexed 47 historical volumes which are either entirely devoted to biographies or have large self-contained biographical sections. The profiles in the books vary widely in accuracy and detail. Birth dates of...
This compilation follows the Fifty-Seven-Year Index to the Sierra Club Bulletin annuals, 1893-1949, compiled by Dorothy H. Bradley and George Shochat and published by the Club in 1952. This index covers the monthly issues from 1950 through 1976 as well as the annuals, which were dated as monthly issues but...
Against the backdrop of growing concern about dead zones, rare and endangered sea mammals, depletion of Oregon’s once‐abundant fish stocks, acidification threatening coastal molluscs, and proposals for marine reserves along Oregon’s coastline, a multidisciplinary group of scientists was called together in 2008 to discuss what is known about Oregon’s coastal...
A fluorescent dye, 1-dimethylaminonaphthalene-5-sulfonyl
chloride (dansyl chloride), was covalently bonded to polylysine. The
dansyl tagged polylysine was complexed to DNA by gradient dialysis.
The polarization and intensity of fluorescence of the dansyl and the
turbidity of the complex were measured as a function of salt concentration
for a variety of...
Keywords: High School Contact Program, UW Pack Forest, Enrollment Statistics, H.I. Nettleton, European Forestry Tour, With The Classes, McDonald-Adair Report, Forestry Research, OSC UW Branch, 1958 European Industrial Forestry Report
These short reports are intended to inform the public, industry, and other interested parties of the current studies of the Commission's staff and of the basis for conservation measures. Reports will be published from time to time when studies are sufficiently complete to provide reliable biological evidence for conclusions upon...
Published January 1952. 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 1981. 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
The purpose of this research was to determine if there were
initial differences in selected dimensions of self-actualization, as
measured by the Personal Orientation Inventory (POI), between the
freshmen who selected co-educational residence halls and those who
selected single-sex residence halls; and to determine if the type
of residence hall...
Several taxonomic issues in the moth families Erebidae and Noctuidae are addressed for Northwestern North America. Drasteria parallela Crabo & Mustelin and Cycnia oregonensis tristis Crabo in the Erebidae and Eudryas brevipennis bonneville Shepard & Crabo, Resapamea diluvius Crabo, Resapamea angelika Crabo, Resapamea mammuthus Crabo, Fishia nigrescens Hammond & Crabo,...
This thesis will explore the architectural material culture excavated at the Robert Newell Homestead (35MA41), currently located in Champoeg, Oregon. Specifically, the research focuses on the vernacular architecture or the features and construction methods used that both reflect the environment and the cultural traditions of the dwellings occupants. The Robert...
This thesis examines archaeological material in order to explore gender and ethnicity issues concerning fur trade era families from a settlement in the Willamette Valley, Oregon. Ethnohistorical information consisting of traders journals and travelers observations, as well as documentation from the Hudson's Bay Company, Catholic church records, and genealogical information...
These short reports are intended to inform the public, fishing industry, sportsmen, and fisheries scientists of research conducted by the Fish Commission. Reports will be published from time to time as studies are sufficiently complete. Most of the reports provide biological evidence upon which measures are based to enhance and...
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...
The 4.59-4.18 Ma Caspana ignimbrite, found within the Altiplano-Puna Volcanic Complex (APVC), is the result of an ~8km3 eruption that took place during the Neogene Ignimbrite Flare-up in the N. Chilean Andes. While most of the eruptions during this flare up are large, monogenetic eruptions, the Caspana that is characterized...
Physical activity is important for young children with and without disabilities. However, recent investigations have found that young children with and without disabilities spend less time in physical activity than is recommended. Family and music factors have been shown to positively affect physical activity of this population in previous studies....
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 study assessed the effects of thinning on arthropod communities on understory plants in the Central Oregon Coast Range. Arthropods were sampled from five understory plants in five pairs of thinned and unthinned, young (50-80 yrs), managed Douglas-fir stands, from late May to mid-July of 1998. Vine maple (Acer circinatum),...
This report discusses major characteristics of western Oregon’s lowland rivers, streams, and estuaries that the IMST finds to be important to wild salmonids. IMST describes how landscape scale factors (landscape structure, landscape function, disturbance regimes, and landscape scale biological processes) historically supported salmonid populations in western Oregon lowlands. The report...
Report of the Oregon Fish and Game Commission’s transactions and operations for July 1, 1980-June 30, 1982. This report summarizes fish and game resources for the biennium, as well as research conducted and an outline of activities to educate the public on operations. It contains information on game such as...
Revised edition of the author's "Vegetation of Oregon and Washington", originally published by the U.S. Forest Service in 1973. Reprinted with new bibliographic supplement by the OSU Press in 1988.
In July of 2001, the Environmental Protection Agency (EPA)
activated the Total Maximum Daily Load (TMDLs) provisions of the
Clean Water Act. As the first river in Oregon to implement TMDL
regulations, people and agencies in the Tualatin basin face many
challenges. Non-point source pollution affects water quality in the...
About 7,000 years ago two major tephra-falls blanketed the
Pacific Northwest in volcanic ash. These two tephra-falls, identified
as the Llao and climatic tephra-falls, were a part of the eruptive
events that led up to the collapse of Mount Mazama to form Crater Lake
in the southern Oregon Cascades.
The...
The Lakes Basin Bibliography consists of over 600 references relating to the natural resources of Oregon’s Lakes Basin. Forty percent of the items listed are available to anyone online though not all links are persistent. The remaining sixty percent are held in at least one library either in print or...
Elevated groundwater nitrate (NO3
-) concentrations in the Southern Willamette
Valley (SWV) caused the Oregon Department of Environmental Quality (ODEQ) to
declare a Groundwater Management Area (GWMA) in Spring, 2004. To better
understand direction of groundwater flow, groundwater age, and nitrate transport
pathways of the SWV we developed a steady-state...
Aquatic fecal contamination from non-point sources impairs environmental health and serves as a vehicle for transmission of waterborne disease, resulting in economic losses worldwide. Accurate methods of diagnosing fecal pollution and its source are needed to prevent human exposure, remediate pollution, and reduce economic impacts. In order to obtain this...
Generally presented as a preferred social norm based on both ethical considerations and legislative demands, gender equality has been highly encouraged in recent years. For instance, The United Nations Sustainable Development Goals for 2030 call out achieving gender equality and empowerment of women. However, although there are multiple efforts to...
Background: While males generally outperform females in athletic tasks, the underlying mechanisms for this difference remain unclear. Explosive neuromuscular performance of the triple extensors, often investigated via rate of torque development (RTD), is crucial for athletic tasks such as a vertical jump. Purpose: To assess sex differences in rapid torque...
Twentieth-century land management has altered the structure and composition of mixed-conifer forests and decreased their resilience to fire, drought, and insects in many parts of the Interior West. These forests occur across a wide range of environmental settings and historical disturbance regimes, so their response to land management is likely...
This project was initiated to determine the incidence, distribution
and species of fish affected by Ceratomyxa shasta in Oregon
waters. Returning adult Pacific salmon and steelhead trout were
chosen for the survey because they were known to be susceptible to
infection. The parasite was also believed to be an important...
This thesis will address the transformation of biological sciences during the 1930s and 1940s and it effects on fisheries science. It will focus on Oregon State College and specifically the Department of Fish and Game Management and the interaction with the Oregon Game Commission. Support for mutation theory and neo-...
Basaltic volcanism provides a window into the Earth’s mantle. Seeing through this window requires seeing through the processes of magma genesis and evolution that distort the view. Radiogenic isotope ratios, and to a lesser extent incompatible elements and stable isotope ratios, allow us to see through these distortions and infer...
Diversity literary awards and other sources were used to create a list of high-quality titles written by and about underrepresented groups. This list was used to assess the diversity and inclusiveness of the library collections of a land-grant university. Gaps in the collection and acquisition processes were identified and will...
In 1982 a protohistoric archaeological site along the Applegate River in southwest Oregon was excavated by Oregon State University Department of Anthropology. Three housepits and a possible menstrual but were uncovered with lithic, faunal, and archaeobotanical elements recovered from house floors and hearths. Seven botanical taxa were represented by carbonized...
The Long Tom Watershed Council (LTWC) is a non-profit organization in Eugene, Oregon that serves to protect and enhance watershed health in the Long Tom River Basin. The Amazon Creek Initiative was launched by the LTWC in 2011 as Oregon’s newest Pesticide Stewardship Partner. Goals of the initiative are to...
Published January 1969. 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
Oregon's estuaries are important ecosystems for scientific study. Consequently, knowledge of what research has been conducted helps us identify benchmarks and plan new projects. A comprehensive bibliography of published research, technical reports, local documents, and data sets is one means of recording this knowledge. For these reasons, the Guin Library...
Cultural resource inventories have identified,205 individual sites
on public land along the Lower Salmon River, Idaho. These sites
represent a rich and diverse record of the human occupation and
utilization of the river canyon during the past 10,000 years. Each
of these 205 sites contains its own unique record of...
Published February 1946. 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
Streams across the western United States are impaired from human alterations that have reduced freshwater habitat by simplifying channel complexity and disconnecting floodplains (Knox et al., 2022; Waples et al., 2008; Wohl, 2014). Climate change is likely to continue exacerbating these risks by warming summer surface stream temperatures (Crozier et...
In this thesis, I present the variational database management system, a formal framework and its implementation for representing variation in relational databases and managing variational information needs. A variational database is intended to support any kind of variation in a database. Specific kinds of variation in databases have already been...
The purpose of this investigation was to develop a
valid and reliable instrument to assess Oregon high school
students' nutrition information.
The following steps were taken in order to achieve this
purpose.
First, a review of the literature pertaining to high
school nutrition curriculum was conducted.
Second, numerous published tests...
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...
Project F-82-R Final Report The results of a study to understand the ecological requirements of brown trout and determine the effects of water development and land use on fish populations in the Deschutes River. Abundance, distribution, survival, age, growth, fecundity, food, migrations and ecological relationships to other species were all...