Index Catalog // ScholarsArchive@OSU

Hydrologic integration of forest roads with stream networks in two basins, western Cascades, Oregon

Creator:: Wemple, Beverly C.
Abstract:: This study assessed how logging-access roads may have contributed to observed historical increases in peak discharges associated with small and large logged basins in the western Cascades of Oregon. The study was conducted on the Lookout Creek (62km²) and the upper Blue River (118km²) basins. Potential road effects on hydrology...
Resource Type:: Masters Thesis

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

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:: approved: __________________________________________________________________________ Julia A. Jones

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:: , Johnson and Jones 2000) and minimum stream temperatures were shown to increase by 1-2°C after 100% timber

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:: the degree of MASTER OF SCIENCE GEOGRAPHY PROGRAM April 2003 Directed by Dr. Julia Jones

Empirical Analysis of Processes Affecting Drainage Flows and Inversions in a Forested Mountain Landscape

Creator:: Malek, Ali
Abstract:: The objective of this dissertation was to understand the physical mechanisms affecting inversion events in a complex forested mountain landscape. This work was motivated by the long-term studies of climate at the Andrews Forest, short-term studies of vertical temperature, light, wind, and moisture gradient in old-growth trees, and interest in...
Resource Type:: Dissertation
Full Text:: . Abstract approved: ______________________________________________________ Julia Jones The

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:: Flow Events, Western Cascades, Oregon. Abstract approved: Julia A. Jones Despite advances in the

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:: : Topographic, Biotic, and Environmental Change Effects Abstract approved: Julia A. Jones

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:: . Abstract approved: ______________________________________________________ Julia A. Jones Despite the

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:: : _________________________ Julia A. Jones Abstract Montane meadows comprise less than 5% of the landscape of the

ScholarsArchive@OSU

Hydrologic integration of forest roads with stream networks in two basins, western Cascades, Oregon

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

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

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

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

Empirical Analysis of Processes Affecting Drainage Flows and Inversions in a Forested Mountain Landscape

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

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

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

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

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