Cordyceps is a genus of perithecial ascomycetes. It includes over 400 species
that are pathogens of arthropods and parasites of the truffle genus Elaphomyces. Based
on the morphology of cylindrical asci, thickened ascus apices and filiform ascospores,
it is classified in the Clavicipitaceae (Hypocreales), which also includes endophytes
and epiphytes...
The strength-normalized fatigue endurance strength of the bulk metallic glass (BMG) Zr₅₂.₅Cu₁₇.₉Ni₁₄.₆Al₁₀Ti₅ (Vitreloy 105) has been reported to be the highest for any BMG; however, to date, there has been no explanation of why this material is so much better than other Zr-based compositions. In this study, the fatigue-crack growth...
New types of exchange arrangements are becoming
increasingly popular for a wide range of goods traded
internationally. Several types of countertrade
arrangements have been identified, ranging from pure
barter to more elaborate schemes where only a portion of
the trade is "paid for" in goods, including bilateral
trading agreements with...
With 97% of the world’s freshwater resources stored underground, the connection between groundwater resources to the metrics of space, scale and time common to the geographic study of natural resources has not been extensively investigated by geographers. While nearly 240 transboundary aquifers are mapped across the world, a potential “tragedy”...
In 2001, an extreme drought tightened water supply in the Upper Klamath Basin (basin) while earlier increases in Endangered Species Act (ESA) water requirements for basin fish species that same year elevated demands. The Bureau of Reclamation (Reclamation), which manages irrigation water in parts of the basin located near the...
Fisheries co-management as an alternative to centralized command and
control fisheries management is often suggested as a solution to the
problems of fisheries resource use conflicts and overexploitation. Various
researchers have talked of the importance of studying the role of
transaction costs between different institutional arrangements for managing
fisheries resources....
A GIS analysis procedure was developed to explore relationships between imagery, yield data, soil information, and other assessments of a field or orchard. A set of conversion utilities, a spreadsheet, and an inexpensive shape file viewer were used to manipulate, plot, and display data. Specific features described include procedures used...
In March 2005 the Oregon State University Herbarium launched its new, free online Oregon Vascular Plant Atlas for public use. This Atlas allows users to access location information from over 385,000 vascular plant specimen and observation records in the state of Oregon. The potential applications of such spatial information are...
This dissertation is an attempt at developing a method for the analysis and estimation of the effects of disruptions due to uncertainties. Such uncertainties may result from design changes and engineering drawing delays in large-scale, complex, research and development, or construction projects.
In order to provide management with a simple...
A complete solution, exact to second-order, for wave motion
forced by a hinged-wavemaker of variable-draft is presented. A
solution for a piston type wavemaker is also obtained as a special
case of a hinged-wavemaker with negative infinite draft. The
existing Stokes inviscid theories for mass transport is extended to
include...
Economic theorists have proposed that the problems created
by a Pareto-relevant externality may be solved by market transactions
between the involved parties. These market transactions would allow
realization of the potential gains from trade which characterize a
Pareto-relevant externality. After all potential gains from trade had
been realized, a Pareto-efficient...
Published December 1980. 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
Premise of study: This research seeks to advance understanding of conditions allowing movement of fungal pathogens among hosts. The family Clavicipitaceae contains fungal pathogens exploiting hosts across three kingdoms of life in a pattern that features multiple interkingdom host shifts among plants, animals, and fungi. The tribe Ustilaginoideae potentially represents...
As part of its management strategies for wetlands in Oregon, the Division of State Lands sponsored a Local Wetland Inventory for the city of Tillamook. Wetlands delineation,
determination, assessment, and management are the concern of several institutions which worked together to create the 1993 Oregon Freshwater Wetland Assessment Methodology. With...
The Mt. Scott watershed in northern Clackamas County, Oregon is an urban watershed that lies inside the Portland metropolitan urban growth boundary. Urbanization of the watershed began in the early 1970s and has recently accelerated. A landscape level analysis of the urbanization process was combined with the results of a...
In this work, I address foundational concerns at the interface of institutions, governance structure, transaction costs, and efficiency in public-private contracting. Following transaction cost economic perspective, I build and justify the theoretical models explaining that institutions may affect the economic performance of public-private contracting through the effect of transaction costs....
IO transactions within a computer system have evolved along with other system components (i.e., CPU, memory, video) from programmed IO (PIO). In current mainstream systems (spanning from HPC to mobile) the IO transactions are CPU-centric descriptor-based DMA transactions. The key benefit is that slower IO devices can DMA write system...
Bitcoin is a digital cryptocurrency, meaning that it is a currency that is not backed by any government, uses cryptography for security and is difficult to counterfeit. Bitcoin’s popularity stems from the fact that it has little regulation and affords some degree of anonymity in transactions. Bitcoin currently has little...
The conservation of open space will become increasingly important as populations expand and undeveloped land is converted to urban uses. The benefits derived from open space conservation include protecting and improving water quality, providing wildlife habitat, maintaining scenic amenities and rural character, and supplying certain recreational opportunities. This study utilizes...
Geospatial data analysis is a multifaceted discipline encompassing the collection, processing, and visualization of diverse datasets. It models and delineates the interactions of people, objects, and phenomena within geographical spaces and predicts patterns based on the relationships between different locations. Despite significant advancements in geospatial data engineering and analytics over...
Oregon's ocean waters are a potential source of wind, wave, and tidal energy; of interest to renewable energy entrepreneurs and to the U.S. government as it seeks to bolster energy security. In order to install technology to capture this energy, however, it may be necessary to mitigate conflict with existing...
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this research was to construct a conflict analysis model in a GIS to answer the
following research
Geographic information systems (GISs) offer a useful tool for educators to teach students about local and global communities in various subjects. GISs are increasingly being used in K-12 education, but that growth is hindered due to many teachers’ limited access to time or resources necessary to adequately learn a GIS...
This paper evaluates Oregon Statewide Planning Goal 5: Natural Resources and Goal 17
Coastal Shorelands, planning programs and makes recommendations for improvement to the
Oregon members of the Columbia River Estuary Study Task Force (CREST). CREST is a
Council of Governments formed in 1974 which includes the local counties, cities...
The working hypothesis for this study is that the introduction of GIS technology into the ancient procedures of map-making has changed the map-making context sufficiently to require a revision of the way we think about, learn from, and use maps, specifically in the public involvement process in natural resource management....
The development of new technologies in science is a balance between existence and use. There are three versions of this duality – something is built and users come, something is built and users don’t come, and, finally, potential users show up but the ballpark has not yet been built. In...
In the equatorial Pacific Ocean, earthquakes are used as an indicator of tectonic stress for normal faults in the Galapagos Spreading Center, transform faults along the East Pacific Rise and thrust faults in the Middle American subduction zone. Linkages between seafloor tectonic processes and oceanographic and lunar conditions were explored...
There is currently a revolution in archaeological morphometric research. As advances in technology are making more in-depth analyses both time and cost efficient. In this work, a collection of artifacts from the Pilcher Creek site (35UN147) in eastern Oregon was digitized using high resolution three-dimensional scanning. These scans were then...
Laboratory exercises from GEO 580, Advanced Applications of GIS in the Geosciences. This course takes graduate students beyond the development of geographic mapping technology that simply answers the question, "Where is it?" to integrated systems and the foundational geographic information science that help us answer the question, "Why is it?"...
Lab materials from the course GEO 465/565, Geographic Information Systems and Science. This intermediate level course covers fundamental concepts underlying computerized geographic information systems (GISs). It combines an overview of the general principles of GIS with a theoretical treatment of the nature and analytical use of spatial information. Although, the...
The shoe repair transaction, as it occurs in the 5000 or so remaining shoe repair shops in the United States, is currently unexamined in academic literature for the significance it holds for either shoe repairers or their customers. Making use of both quantitative and qualitative methods of data collection, this...
Forest carnivores such as the fisher have frequently been the target of conservation concern due to their association with older forests and assumed sensitivity to landscape-level habitat alteration. Although the fisher has been extirpated from most of its former range in the western U.S., it is still found throughout much...
Teaching GIS involves teaching ethical and moral thinking as a distinct engagement with
the use, applications, and responsibilities of GIS professionals. Over the past 20 years
scholars (particularly those affiliated with the discipline of Geography) have contributed
critiques of the instrumental nature of GIS as well as reflective case studies...
This capstone project explores the efficacy of Geography Information Systems (GIS) to promote scientific literacy in secondary science classrooms and students’ preference of GIS when learning scientific literacy skills. For the scope of this project, secondary science classrooms are defined as grades 6-12 and scientific literacy is defined as 1)...
National and international organizations are developing spatial databases to assess the
distribution of Biodiversity using geographic information systems (GIS). Currently, there
are no guidelines or standards for building GIS databases for biodiversity assessment
because database design is discipline-dependent and most biodiversity disciplines lack
spatial traditions. The present research analyzes the...
Training high school students to conduct field mapping and data
collection of wildlife habitat on public lands produces important data for
local government geographic information systems and introduces students
to the field of geography. However, the positional accuracy of the spatial
data is important for use in a GIS, as...
We have developed a framework for Web-based GIS/database applications which allow users to insert, update, delete, and query data with a map interface displayed by Web browsers. The framework was designed so that a Web-based GIS application that uses ArcIMS as a map server can be easily created, customized, and...
The Greenbelt Land Trust (GLT) (a grass-roots conservation group in
Oregon) is interested in a conservation plan for the Marys River Corridor. To
facilitate this effort, a resource inventory was required and a Geographic
Information System (GIS) data base used to compile the inventory (called the
Marys River Project (MRP))....
Louisiana Army Ammunition Plant (LAAP), located near Shreveport, Louisiana, is a
government-owned contractor-operated plant. Its purpose is to manufacture, load and
assemble ammunition items. Area P has been used over the past 40 years to dump
explosive-laden wastewater into 16 unlined lagoons. In 1989 LAAP was placed on the
National...
We developed a Web-based GIS/database application designed to help motel businesses reach target customers effectively. By using an interactive map along with a relational database, users can view any particular area of the map and perform some basic operations as their groups privileges permit. With different types of privileges, users...
We have developed a framework for Web-based GIS/database (WebGD) applications
that allow users to insert, query, and delete data with map interfaces displayed by Web
browsers. The framework uses such open source software packages as Minnesota
MapServer, PostGIS, and PostgreSQL. With this framework, we can create the map
interface of...
As part of a study to determine the history and potential for conflict in international freshwater
basins, an estimate was made of the location of arable and irrigable land in the world.
Knowledge about the world's arable and irrigable land was desired since this information could
be an indicator of...
This thesis merges the fields of Ecology and Anthropology by applying Habitat Suitability Modeling to the relationship between people and plants in the Pacific Northwest. In it, I create and optimize two Maxent habitat suitability models for camas (Camassia spp.) in Oregon. The first model describes the physical environment of...
Multibeam sonar data was collected on Nehalem Bank, off of the Oregon Coast with the purpose of increasing the spatial resolution of our knowledge of the area and delineating seafloor habitats. The system used was the Kongsberg Simrad EM-300 operating at 30 kHz. The data set collected includes both topographic...
A major challenge to the study of the peopling of the Americas is that much of the Bering Land Bridge (Beringia), the geographic area that people migrating from Northeast Asia into North America would presumably have passed through, is now submerged due to sea-level rise since the last glacial maximum....
The search for archaeological materials dating to 15,000 yr BP along the southern Oregon coast is a formidable task. Using ethnographic, theoretical, and archaeological data, landscape resources which would have influenced land-use and occupation location decisions in the past are highlighted. Additionally, environmental data pertaining to the late Pleistocene is...
Computer system I/O has evolved with processor and memory technologies in terms of reducing latency, increasing bandwidth and other factors. As requirements increase for I/O, such as networking, storage, and video, descriptor-based DMA transactions have become more important in high performance systems to move data between I/O adapters and system...
Surface water in the Deschutes Basin of central Oregon has been largely over
allocated since the early 1900s. Therefore, rapid population growth and urban
demand for water in the upper Basin lead to an increased reliance on groundwater in
the last three decades. The Oregon Department of Water Resources (OWRD)...
This study presents potential Low Impact Development (LID) solutions for the Ash Creek watershed and designs several tools to assist localities in implementing the solutions they may choose. Ash Creek is a tributary of the Willamette River flowing through Dallas, Monmouth, and Independence in Polk County, Oregon. Currently, Ash Creek...
Alterations in gait patterns are commonly observed in individuals with transtibial amputation (TTA) who use a prosthesis. Current commercially available ankle-foot prostheses (AFP) offer very little range of motion (ROM) at the ankle joint. Previous researchers have hypothesized that lack of ankle ROM significantly contributes to alterations in TTA gait...
Operational forest planning is characterized by a lack of formal planning often using only the intuition and experience of the forest planners. There are a number of sources of variability found in operational planning. Like most businesses there is significant variability in the demand forecasts obtained from customers. Forestry differs...
Operational forest planning is characterized by a lack of formal planning often
using only the intuition and experience of the forest planners. There are a
number of sources of variability found in operational planning. Like most
businesses there is significant variability in the demand forecasts obtained from
customers. Forestry differs...
The purpose of this project, therefore, is to develop a GIS for a small
geographical area that is currently of high priority to the GLT. The development of this GIS will be documented in a sequential fashion, so that it may serve as a
framework for future endeavors. This paper...
GIS technology has reached a point where it can be utilized by nonprofessionals in a desktop environment. This paper reviews the implementation of a pilot project for developing a localized-natural resource GIS. The resulting GIS was custom designed to answer questions posed by fish and wildlife biologists who need to...
Estimating the hydraulic conductivity of earth materials is important for many water resource modeling efforts, including predicting the transport of pollutants in ground water, computing surface runoff for flood control, and computing water budgets. This research implicitly used topography, soil, and climate data to estimate plausible continuous hydraulic conductivity values...
In the last couple years cloud services have become mainstream and easily accessible for organizations to purchase and utilize. GeoPost is a variant on that by introducing GIS to it cloud services for installation management. GeoPost takes the Microsoft Azure Cloud and using ESRI’s Enterprise builds a cloud GIS platform....
Evaluating different timber transport configurations for a large road network is a challenging
task. Road curves are often too sharp to allow access to certain configurations. This paper
evaluates the feasibility of using a geographical information system (GIS) road data set as a basis
for determining the accessibility of plantation...
PURPOSE: We analyze a recently proposed polyenergetic version of the simultaneous algebraic reconstruction technique (SART). This algorithm, denoted pSART, replaces the monoenergetic forward projection operation used by SART with a post-log, polyenergetic forward projection, while leaving the rest of the algorithm unchanged. While the proposed algorithm provides good results empirically,...
This study analyzes food access patterns on the Southern Oregon Coast using GIS technology. The utility and capacity issues of GIS technology are explored as well as the ability for community-based organizations to apply GIS analysis at a local level. A comprehensive literature review is presented which addresses the definition...
Overfishing of our national marine resources has degraded some of the most productive fishing regions in the Northwest Atlantic Ocean, most notably the Gulf of Maine and Georges Bank. These regions may have shifted from productive trophic regimes to a less than optimal state therefore reducing fishers’ catches and associated...
This paper discusses the development of a new GIS extension named the Topographic Compartment Analysis Tool (TopCAT), which compares sequential digital elevation models (DEMs) and provides a quantitative and statistical analysis of the alongshore topographical change. TopCAT was specifically designed for the morphological analysis of seacliffs and beaches but may...
A site suitability analysis for reforestation of the endemic Hawaiian forest tree koa (Acacia koa var. hawaiiensis) was performed. The study will assist the Hawai'i Resource Conservation and Development's (RCD) Forestry Committee in their effort to develop a master land use plan for koa regeneration on the Island of Hawai'i....
One of the crucial components of marine and coastal resource management is
using the best available data for decision-making. There are many facets however,
to what makes data available and useable. Even though data may exist for many
natural resource and marine resource issues, they don't always come in accessible...
We map the regional physiography and surficial lithology (Surficial Geologic Habitat or
SGH) over the continental margin of Oregon. This thesis develops, describes, and
implements an iterative interpretive method to map seafloor habitat types from disparate
geological and geophysical datasets including: bathymetric images, sidescan sonar
images, seismic reflection profiles, sediment...
Benton County has experienced substantial growth in the past 30 years, and is expected to continue growing (BCWP 2008). Continued development has occurred in the Willamette Valley, housing development in the nearby hills of the Coast Range is growing. New houses in the foothills of the Coast Range may not...
The dataset is a layer file created in ArcGIS Pro 2.2. The dataset includes digitized outlines of the seaward edges of five Oregon salt marshes (Nehalem, Netarts, Salmon, Alsea, and Coquille). These are roughly decadal from 1939 to 2018 and were hand-digitized using historical aerial photography (1939 to the late...
Consideration of social and cultural dimensions in coastal and marine planning has increased and ecosystem services provide important framing to investigate values and priorities associated with these systems. Research efforts in coastal communities offer insights on social dimensions of ocean and coastal management decisions, but questions remain about how demographics...
Wildfires are a recurring disaster that threatens communities living close to forests and result in significant financial losses along with negative environmental effects, especially with the increase of wildfire season length and intensity due to climate change and increasing urbanization. Wildfire events can also have a significant impact on the...
Ever expanding pressures on the health and productivity of our oceans and coasts from threats such as coastal development and climate change are stressing the need to consider the full spectrum of factors, scales, datasets, opinions, and trade-offs for current and future coastal management actions (Guerry 2009; McLeod and Leslie...
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Specifications and Open Source Software. TransactionsinGIS 7: 447-66.
ArcGIS Desktop 10.0. 2011. ESRI
Ever expanding pressures on the health and productivity of our oceans and coasts from threats such as coastal development and climate change are stressing the need to consider the full spectrum of factors, scales, datasets, opinions, and trade-offs for current and future coastal management actions (Guerry 2009; McLeod and Leslie...
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-based GIS and python expertise, and interest in my research as well. I
would also like to extend my
Oregon's ocean waters are a potential source of wind, wave, and tidal energy; of interest to renewable energy entrepreneurs and to the U.S. government as it seeks to bolster energy security. In order to install technology to capture this energy, however, it may be necessary to mitigate conflict with existing...
La lagune de Nador se caractérise par un écosystème semi-fermé, en communication avec la mer par une étroite passe. Cet écosystème est sous l'influence de plusieurs facteurs externes tels que l'ensoleillement, l'apport en eau douce, les eaux de ruissellement, le lessivage des champs agricoles et les eaux usées urbaines. L'influence...
With a growing population and increasing demand for recreation resources,
managers of public lands face unique challenges in allocating and overseeing resource
use. One of the most reliable methods for gathering information from resource users
involves surveying. Summaries and applications of survey results typically have not
fully addressed the spatial...
This investigation on fire mosaics addressed several aspects:
(1) quantifying the role of terrain variables in fire-related
mortality and historical mean fire return interval (MFRI), (2)
comparing post-burn Landsat Thematic Mapper (TM) imagery, TM
difference imagery, and aerial photo interpretation to map forest
survival after wildfire, and (3) to describe...
Oregon Explorer (www.oregonexplorer.info), a natural resources digital library developed by Oregon State University Libraries and the Institute for Natural Resources, was created for Oregon’s natural resource decision-makers to promote informed and streamlined public and private decision-making. Examples of projects and successes of the Oregon Explorer include a basin portal for...
The use of Geographic Information Systems (GIS) is rapidly expanding in almost every field of inquiry. The field of Archaeology is also learning to use GIS to improve both initial data collection in the field and data analysis in the lab. This paper evaluates the usefulness of the GIS software...
The Geographic Information System (GIS) is an invaluable tool in manipulating and
interpreting world scale datasets. In recent years it has become the standard link between
water resource study and the ever-increasing numbers of high quality data sets. This
paper describes the use of Geographic Information Systems for gathering and...
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...
Because of declines in salmon populations in recent years, the health of salmon habitat, in particular, is the focus of many resource agencies. The objective of this study is to use GIS to predict the location of suitable habitat. With data from an extensive set of stream surveys, GIS was...
Fish consumption in Mexico is considered low (around 12 kg per person per year) and non-homogeneously distributed across the country. One of the reasons for this situation is the scarcity of wholesale selling sites. In this context, the Mercado del Mar (MM), located in Guadalajara city, Jalisco, is the second...
Virgin aggregate resources (crushed stone, rock, sand and gravel) are the literal
foundation of America's built environment. Aggregate resources are arguably the most
abundant natural resources in the world next to water. However, land use and
environmental concerns shadow both existing and future aggregate resource sites, which
may create a...
This study demonstrates the utility of combining available scientific data with local ecological knowledge in a Geographic Information System (GIS) to support community-based fisheries management. The approach used provides both the framework for capturing important ecological, economic and social information relevant to marine fisheries management, and also offers coastal citizens...
This study demonstrates the utility of combining available scientific data with local ecological knowledge in a Geographic Information System (GIS) to support community-based fisheries management. The approach used provides both the framework for capturing important ecological, economic and social information relevant to marine fisheries management, and also offers coastal citizens...
Situated off the west coast of Vietnam in the Gulf of Thailand, Phu Quoc archipelago and its waters are well-known for their rich natural resources, especially the bounty of fishery resources. Under increasing pressure from the growing population, fishing, and tourism development, there is a strong need to formulate an...
This internship project (Dr. Dawn Wright—Department of Geoscience) was a synthesis of several aspects of the research process. The documentation of methods consisted of: primary data collection of soil samples, geographical coordinates, georeferencing, basemap creation, laboratory machine operation, laboratory methods, laboratory quality control planning, statistical analysis, and geo-statistical analysis using...
Investigations of the Pleistocene peopling of the New World require archaeologists to establish an understanding of the paleoenvironmental conditions that would have affected early foraging peoples. Other studies have focused on the timing and route of migration and the peopling of the Americas. This project contributes to the body of...
The objective of this research was to estimate the radiological impact on various non-human biotas by the Fukushima Daiichi Nuclear power plant radiation release resulting from Japan's tsunami in March 2011 consistent with the recent recommendations of the International Commission on Radiological Protection. Soil concentration data given by Japan's Ministry...
The Mosquitia Region of Honduras is part of the largest wilderness area in Central
America. In terms of biodiversity the area is rich in ecosystems including pine savannas,
tropical rain forests, and wetlands. These ecosystems are rich in millions of species
including rare and endangered. Honduras faces an economic, social,...
In 2006–2007, an unusually high number of harbor porpoises (Phocoena phocoena) stranded along the Washington and Oregon coastlines. Spatiotemporal analyses were used to examine their ability to detect clusters of porpoise strandings during an unusual mortality event (UME) in the Pacific Northwest using stranding location data. Strandings were evaluated as...
This study examined the logbook record of the Oregon trawl fishery using a geographic information system (GIS) to determine the spatial and temporal distribution of English sole, Pleuronectes vetulus. The original logbook data for the years 1981,1982,1994,1995,1996 were filtered twice to provide both a general description of trends in the...
The leasing of submerged and submersible lands is emerging as a new marine conservation method. Using a geographic information system, this study: (1) examines the suitability of estuary tideland sites for conservation leasing in Lincoln County, Oregon, and (2) explores the relationship between adjacent terrestrial land use zones and the...
Energy security is a vital but often unmet requirement for community resiliency. Electricity availability is essential to the functioning of the economy, individual households, and the collective essential services that provide health, safety, and the basic human needs to sustain life. Coastal communities in Oregon face special vulnerability because they...
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4.1 Valuing Losses from a Long-Duration Blackout in Newport, Oregon
The Southern Oregon Forest Restoration Collaborative (SOFRC), the Model Forest Policy Program (MFPP) and the Rogue River-Siskiyou Forest Service (RRSFS) have a shared vision to enhance the resiliency of our communities and forests. In 2012, the Collaborative took the leadership role to engage in the Climate Solution’s University (CSU) Plan...
This symposium consists of presentations and discussions looking to the future of natural resources distance learning concepts. Key issues that will be discussed include: faculty development, technology roles - from remote imaging transmitted to the classroom to iPod lecture series and field assignments, credit transfer among Consortium members, faculty recruitment,...