Index Catalog // ScholarsArchive@OSU

A multi-scale comparative study of shape and sprawl in metropolitan regions of the United States

Creator:: Kugler, Tracy A.
Abstract:: This dissertation constitutes a multi-scale quantitative and qualitative investigation of patterns of urban development in metropolitan regions of the United States. This work has generated a comprehensive data set on spatial patterns of metropolitan development in the U.S. and an approach to the study of such patterns that can be...
Resource Type:: Dissertation
Full Text:: metropolitan region relative to significant national events (Wheeler, 2008) and the effects of path

The effects of stand thinning on soil erosion rates at Jim's Creek in the Willamette National Forest, Oregon

Creator:: McFadden, Andrew K.
Abstract:: Surface sediment transport is an important geomorphic process which can be significantly altered by management activities in forested ecosystems. Disturbance of the soil surface may result in increased sediment delivery to fish bearing streams and degradation of soil structure. Selective thinning and low impact yarding techniques were utilized in an...
Resource Type:: Capstone Project
Full Text:: the least common within the Pacific Northwest. On undisturbed soils within this region, high

The use of ecological principles for riparian zone management in four forest planning documents

Creator:: Sinton, Diana Stuart
Abstract:: The purpose of this paper is to evaluate the extent to which ecological principles were used in four documents of differing scope and intent, that address management of forest resources and riparian zones in three National Forests of the Pacific Northwest. We use the phrase "ecological principles" in a very...
Resource Type:: Capstone Project
Full Text:: National Forest. Willamette National Forest, Pacific Northwest Region, Forest Service publication. Nehisen

Interacting effects of climate, forest dynamics, landforms, and river regulation on streamflow trends since 1950 : examples from the Willamette Basin and forested headwater sites in the US

Creator:: Hatcher, Kendra L.
Abstract:: Streamflow patterns are a result of the interaction of many factors, including climate, vegetation, geology, and topography. Analyses indicate that streamflow patterns have changed around the United States over the past century, raising questions about the possible role of climate variability as a driver of water yield. This thesis examines...
Resource Type:: Masters Thesis
Full Text:: Northwest region with minimal summer precipitation and streamflow, fulfilling environmental regulations

A Novel Approach to Process-based River Restoration in Oregon : Practitioners’ Perspectives, and Effects on In-stream Wood

Creator:: Bianco, Stephanie R.
Abstract:: The widespread fragmentation, channelization, and simplification of river ecosystems has had acute environmental impacts, including degradation of water quality and habitat and biodiversity loss (Vörösmarty et al., 2010). These concerns have incited an increased focus on reestablishing ecological and hydrogeomorphological functions and improving habitat that has been lost in riverine...
Resource Type:: Masters Thesis
Full Text:: begin in the coming years. A small group of U.S. Forest Service (USFS) fisheries biologists and

The effects of ownership pattern on forest road networks in western Oregon

Creator:: Freid, Matthew A.
Abstract:: The pattern of ownership imposed on the-forest landscape of Western Oregon defines the boundaries in which differences in jurisdiction, regulation, and land use operate. Road building is controlled by these factors, and in turn has an effect on the cumulative effects of human utilization of the forest. This study examined...
Resource Type:: Capstone Project
Full Text:: with an checkerboard an area of Forest Service and industrial lands within the National Forest

Forestry herbicide use on private forest lands in Lincoln and Benton County Oregon, 1991-1994

Creator:: Godino, John Alessandro
Abstract:: The use of phenoxy herbicides is an established practice in industrial forestry, particularly in the Pacific Northwest. Forestry herbicide use in this region has often been controversial. To better understand the spatial patterns of herbicide use and the potential for human health and environmental impacts, a landscape level perspective is...
Resource Type:: Capstone Project
Full Text:: , particularly in the Pacific Northwest. Forestry herbicide use in this region has often been controversial. To

Spatial distribution and the probability of occurrence of beluga whales (Delphinapterus leucas) in Alaskan Arctic

Creator:: Romeo, Lucy F.
Abstract:: The known distribution of beluga whales ranges from sub-Arctic to Arctic waters where they migrate in pods in response to environmental factors such as the presence of sea ice and prey. This study uses bivariate and multivariate analysis techniques to measure how environmental covariates are associated with the spatial-temporal distribution...
Resource Type:: Masters Thesis
Full Text:: , encompassing a portion of the Chukchi Sea. 2.2 DATA SOURCES Data from the National Marine Mammal

Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon

Creator:: Tepley, Alan J.
Abstract:: Descriptions of the fire regime in the Douglas-fir/western hemlock region of the Pacific Northwest traditionally have emphasized infrequent, predominantly stand-replacement fires and an associated linear pathway of stand development, where all stands proceed along a common pathway until reset by the next fire. Although such a description may apply in...
Resource Type:: Dissertation
Full Text:: hemlock region of the Pacific Northwest traditionally have emphasized infrequent, predominantly stand

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Creator:: Perry, Timothy D.
Abstract:: This study quantified the magnitude and timing of summer streamflow deficits in paired-watershed experiments in the Cascade Range of Oregon where mature and old-growth conifer forests were subjected to clearcutting, patch cutting, and overstory thinning treatments in the 1960s and 1970s. Hydrologic effects of clearcutting, small-patch cutting, and overstory thinning...
Resource Type:: Masters Thesis
Full Text:: deficits based on existing paired-WS experiments in the Pacific Northwest. In the Marine West Coast

Habitat quality and biotic integrity in mountain streams of East Maui, Hawaii

Creator:: Carter, H. Jamieson
Abstract:: Hawaiian streams are valued for environmental, cultural, and aesthetic qualities. Windward streams in East Maui, Hawaii are diverted to irrigate crops in central portions of the island. Diversions typically remove 100% of the base flow and leave downstream reaches dry most of the year. Ground water seeps and springs contribute...
Resource Type:: Capstone Project
Full Text:: marine fisheries? Proceedings of the Hawaii Stream Restoration Symposium, October 1994, Devick, W.S. (ed

Precipitation-snowmelt timing and snowmelt augmentation of large peak flow events, western Cascades, Oregon

Creator:: Jennings, Keith S.
Abstract:: Despite advances in the understanding of rain-on-snow storms and their resulting peak flows, little is understood about the response of snowmelt to precipitation and the relative timing of the two at multiple temporal scales within such events. To address this issue, climate, snowmelt, and streamflow data were analyzed for 26...
Resource Type:: Masters Thesis
Full Text:: and streamflow measurements at the H.J. Andrews Experimental Forest are supported by National

Effects of harvest and roads on in-stream wood abundance in the Blue River Basin, western Cascades, Oregon

Creator:: Czarnomski, Nicole M.
Abstract:: Despite many studies of large wood in streams, few landscape scale studies have been conducted. Large-scale studies can reveal how the history of forest harvest and road building has influenced wood patterns in streams of the Pacific Northwest. This study examined the relationships between wood in streams, timber harvest, and...
Resource Type:: Masters Thesis
Full Text:: University, and the U.S. Forest Service Pacific Northwest Research Station, Corvallis, Oregon. Significant

Childhood cancer and spatial analyses of benzene exposure in Texas

Creator:: Roberts, Mark T.
Abstract:: Childhood cancers are rare diseases that affect 188 children in Texas for every million born. Leukemia is the most common childhood cancer and accounts for roughly one third of childhood cancer cases. However, it is estimated that only 10% of childhood cancer cases can be explained by known risk factors....
Resource Type:: Dissertation
Full Text:: density, and National Air Toxics Assessment benzene estimates (NATA), with an upper range of estimated

The historic and contemporary ecology of western Cascade meadows : archeology, vegetation, and macromoth ecology

Creator:: Highland, Steven A.
Abstract:: Montane meadows in the western Cascades of Oregon occupy approximately 5% of the landscape, but contribute greatly to the region's biodiversity. Western Cascades meadows are dynamic parts of the landscape and have contracted by over 50% in the past two hundred years in the HJ Andrews Experimental Forest (hereafter Andrews...
Resource Type:: Dissertation
Full Text:: contribute greatly to the insect diversity in a region. Moth species richness and abundance may be

Optimizing Reservoir Operations to Adapt to 21st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

Creator:: Moore, Kathleen M.
Abstract:: Reservoir systems in the western US are managed to serve two main competing purposes: to reduce flooding during the winter and spring, and to provide water supply for multiple uses during the summer. Because the storage capacity of a reservoir cannot be used for both flood damage reduction and water...
Resource Type:: Dissertation
Full Text:: , and I would like to acknowledge the funding of this project by the National Science Foundation

Entrainment, transport, and deposition of large woody debris in streams : results from a series of flume experiments

Creator:: Braudrick, Christian A.
Abstract:: Although there has been extensive research on the geomorphic and ecologic role of large woody debris (LWD) in streams, the dynamics of LWD in streams are poorly known due to various measurement difficulties during floods. In this thesis I present the results of two flume experiments on the dynamics of...
Resource Type:: Masters Thesis
Full Text:: University Corvallis, OR 97331 Gordon E. Grant USDA Forest Service, Pacific Northwest Research

Stream temperature response to partial canopy removal in first and second order streams in the central Oregon Cascades

Creator:: Sullivan, Lawrence
Abstract:: Stream temperature response of first and second order streams to the Blue River Landscape Study (BRLS), an alternative land management strategy based on historic fire regimes, was analyzed in the central Oregon Cascades. The BRLS treatment prescription of a 50% canopy reduction and low intensity burn was applied with a...
Resource Type:: Capstone Project
Full Text:: Adaptive Management Area. The Adaptive Management Area was created by the Northwest Forest Plan for the

Effects of Forest Harvest, Floods, and Wildfire on Bedload Export from Headwater Catchments in the H.J. Andrews Experimental Forest, 1957 – 2022

Creator:: Wright, Charles M.
Abstract:: This study examined how annual bedload export volume and bedload characteristics were related to disturbances including logging, floods, debris slides, and wildfires over 48 to 65-year periods in small, steep catchments in conifer forests of the western Cascade Range, Oregon. Bedload – the material rolling, sliding, or saltating along the...
Resource Type:: Masters Thesis
Full Text:: Ecological Research (LTER) program, a collaboration of the USDA Forest Service Pacific Northwest Research

Effects of an engineered log jam on flow structure and complexity

Creator:: L'Hommedieu, William J.
Abstract:: The installation of engineered log jams (ELJs) is a common river restoration practice, implemented to modify flow structure and increase hydraulic complexity for the benefit of streambank protection and fish habitat. However, few studies have directly assessed the effects of ELJs on flow structure and complexity. This study presents a...
Resource Type:: Masters Thesis
Full Text:: Arthur and Heriot-Watt University. This research was made possible by the National Science Foundation

Flow From Flexibility : Identifying Opportunities For Streamflow Restoration in a Transboundary Municipal Watershed Through Water Budgeting

Creator:: Pierson, Jessica S.
Abstract:: Municipal watersheds attempt to balance growing and conflicting demands for water for human use and for ecosystems. The Mill Creek basin, a 295 km2 basin in southeast Washington, exemplifies these conflicts. Since the late 1800s, the City of Walla Walla has withdrawn water from Mill Creek for municipal use. However,...
Resource Type:: Masters Thesis
Full Text:: City’s water intake is the Umatilla National Forest, managed by the US Forest Service (USFS). The

Examining the Spatial Distribution of Park Access and Trajectories of Gentrification in Seattle, Washington 1990 - 2010

Creator:: Weems, Candice Michelle
Abstract:: This dissertation examines the spatial distribution of park access by type in relation to trajectories of gentrification in Seattle from 1990 to 2010. The dissertation includes 5 Chapters. The first chapter provides an overview of the literature that motivated this research. The second, third and fourth chapters are research papers...
Resource Type:: Dissertation
Full Text:: “fair treatment and meaningful involvement of all people regardless of race, color, national origin

Forest-meadow dynamics in the central western Oregon Cascades : topographic, biotic,and environmental change effects

Creator:: Rice, Janine M.
Abstract:: Montane meadows comprise a small area of the predominantly forested landscape of the Oregon Cascade Range. Tree encroachment in the last century in these areas has threatened a loss of biodiversity and habitat. Climate change in the coming century may accelerate tree encroachment into meadows, and exacerbate biodiversity loss. Multiple...
Resource Type:: Dissertation
Full Text:: work was an interdisciplinary study that was supported by the National Science Foundation’s (NSF

A review and assessment of network concepts and their applications in geography and related disciplines

Creator:: Versluis, Anna J.
Abstract:: Networks are a structure common to many disciplines. Research on networks has taken different forms in domains such as graph theory, sociology, vascular networks, small-world networks, geomorphology, ecology, evolution and engineering. Networks may be modeled as non-spatial networks (unvalued graphs), which contain only topological information, or as spatial networks (valued...
Resource Type:: Capstone Project
Full Text:: Engineering of service networks, with a focus on GIS ........................ 37 Networks and geography

Trends in streamflow from old growth forested watersheds in the western Cascades

Creator:: Moore, Kathleen M.
Abstract:: Increasing temperatures in western North America are expected to result in a decline in winter snowpacks, earlier snowmelt, and a shift in the timing of streamflows, with an increasing fraction of streamflows occurring earlier in the water year and drier conditions during the summer. However, few streamflow datasets have associated...
Resource Type:: Capstone Project
Full Text:: Northwest region, and (2) the extent to which forest ecosystems appear to be responding to climate trends

Influence of spatial and temporal factors on plants, pollinators and plant-pollinator interactions in montane meadows of the western Cascades Range

Creator:: Pfeiffer, Vera W.
Abstract:: Montane meadows comprise less than 5% of the landscape of the western Cascades of Oregon, but they provide habitat for diverse species of plants and pollinators. Little is known about plant-pollinator network structure at these sites. This study quantified plant-pollinator interactions over the summer of 2011, based on six observations...
Resource Type:: Masters Thesis
Full Text:: work. Dr. Andy Moldenke performed invaluable service in the field and throughout the following

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