Index Catalog // ScholarsArchive@OSU

Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

Creator:: Helderop, Edward
Abstract:: Despite the importance of plant-pollinator interactions for ecological communities, few long-term observational studies have been conducted of plant-pollinator networks. Using four years of plant-pollinator interaction data from 18 meadows in the Willamette National Forest, Oregon, this thesis examined how meadow size, the amount of nearby meadow habitat, weather, degree days,...
Resource Type:: Masters Thesis
Full Text:: data from 18 meadows in the Willamette National Forest, Oregon, this thesis examined how meadow size

Road networks, timber harvest, and the spread of Phytophthora root rot infestations of Port-Orford-cedar in southwest Oregon

Creator:: Clark, William C.
Abstract:: Phytophthora lateralis is the causal agent of cedar root rot, a fatal forest pathogen whose principal host is Chamaecyparis lawsoniana (Port-Orford-cedar), a predominantly riparian-restricted endemic tree species of ecological, economical, and cultural importance to coastal Oregon and California. Local scale distribution of P. lateralis is thought to be associated with...
Resource Type:: Masters Thesis

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:: watershed (WS) each) in the Coyote Creek WS of the South Umpqua Experimental Forest at 42° 1’ 15”N and

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:: presented on December 11, 2009. Title: Forest-Meadow Dynamics in the Central Western Oregon Cascades

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:: . ................................................................................................... 77 2. 24. 1912 Cascade National Forest map showing the location of HJA. Note that Lookout Creek

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:: above dams in the Willamette National Forest, and three gages downstream of dams in urban areas of the

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:: locations in relation to the Willamette National Forest (white shading) and major physiographic provinces

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:: . The national distribution of regional shapes suggests the influence of physical setting and city

A study of varying logging practices on stream temperature in the Blue River drainage, Western Oregon Cascades

Creator:: Nicolello, Jon
Abstract:: Three (3) streams with desired similar characteristics, located in the Blue River Watershed in the Central Oregon Cascades, were studied to better understand the impacts of forest harvest on stream temperature and aquatic habitat. Of the 3 designated streams, North Fork Quartz Creek, Blue River Face, and Wolf Mann, only...
Resource Type:: Capstone Project
Full Text:: Ranger District in the Willamette National Forest, Oregon, has provided stream temperature data. Data

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

ScholarsArchive@OSU

Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

Road networks, timber harvest, and the spread of Phytophthora root rot infestations of Port-Orford-cedar in southwest Oregon

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

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

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

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

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

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

A study of varying logging practices on stream temperature in the Blue River drainage, Western Oregon Cascades

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

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