Index Catalog // ScholarsArchive@OSU

Thinning aged Douglas-fir : an analysis of mobilization costs and a log bucking strategy for revenue improvement

Creator:: Pilkerton, Stephen J.
Abstract:: Contract harvest operations have become the preferred approach to reducing the largest cost component of timber production through free market competition amongst logging contractors bidding or negotiating for work. The goal of this research was to investigate economic components of harvesting operations not previously studied for steep slope thinning harvests...
Resource Type:: Dissertation
Full Text:: harvest operating seasons were modeled for nine Siuslaw National Forest timber sales. Mobilization

Early forest succession following clearcuts in western Oregon : patterns and abiotic controls

Creator:: Yang, Zhiqiang
Abstract:: Historical aerial photos were used to examine the early phase of forest succession after stand replacement disturbance, covering the Coast Ranges Province (CRP) and the western Cascades Province (WCP) of western Oregon. The study consisted of two components: characterizing the pattern of forest succession in western Oregon; analyzing the influence...
Resource Type:: Dissertation

Dead wood dynamics and relationships to biophysical factors, forest history, ownership, and management practices in the Coastal Province of Oregon, USA

Creator:: Kennedy, Rebecca S.H.
Abstract:: Dead wood patterns and dynamics vary with biophysical factors, disturbance history, ownership, and management practices. Through field and modeling studies, I examined the current and potential future amounts of dead wood in two landscapes and region-wide in the Coastal Province of Oregon. The objectives of the first study were to...
Resource Type:: Dissertation

Multi-scale relationships between aspen and birds in the northern Yellowstone ecosystem

Creator:: Hollenbeck, Jeff P., 1967-
Abstract:: I conducted a multi-scale evaluation of aspen – bird relationships in the northern ungulate winter range of the northern Yellowstone ecosystem during June 2001-03. Questions addressed were: (1) Does bird diversity increase with conifer presence in aspen stands? (2) Given known habitat selection cues, are migrating birds passively intercepted by...
Resource Type:: Dissertation
Full Text:: logistical support provided by Dan Tyers at the Gardiner District Office of the Gallatin National Forest

Biogeochemical signals of mountainous forested watersheds' response to disturbance

Creator:: Guerrero-Bolaño Francisco J.
Abstract:: Small mountainous watersheds are disproportionate sources of land-derived particulate organic matter (POM) to long-term sinks like lake bottoms and the ocean. As such, these ecosystems are an essential component of the global carbon cycle. The burial of POM in lacustrine and marine sediments contributes to the drawdown of atmospheric CO2...
Resource Type:: Dissertation
Full Text:: Francisco Jose Guerrero Bolaño for the degree of Doctor of Philosophy in Sustainable Forest Management and

Evidence of a trophic cascade among wolves, elk, and aspen in Yellowstone National Park, USA

Creator:: Halofsky, Joshua S.
Abstract:: According to general top-down trophic theory, in the presence of carnivores, herbivore behavior and/or densities could change and result in an overall decrease in herbivory on plant communities. In this dissertation, I examined the potential relationship between gray wolf (Canis lupus) presence and absence on elk (Cervus elaphus) herbivory of...
Resource Type:: Dissertation
Full Text:: Darrell Ross. Thanks to Andy Pils of the Gallatin National Forest for his offers of assistance in the

Trophic cascades and large mammals in the Yellowstone ecosystem

Creator:: Painter, Luke E.
Abstract:: Reintroduction of wolves to Yellowstone National Park (YNP) in 1995-96 provided a rare opportunity to observe the response of an ecosystem to the return of a top predator, including possible reversal of decades of decline of aspen, cottonwood, and tall willows suppressed by intensive herbivory on elk winter ranges. To...
Resource Type:: Dissertation
Full Text:: National Forest east of the park, compared to data collected in the same stands in 1997-98. As in

Habitat use and movement behavior of Pacific marten (Martes caurina) in response to forest management practices in Lassen National Forest, California

Creator:: Moriarty, Katie M.
Abstract:: Some of the most pressing conservation concerns involve declining populations of species with low fecundity and highly specialized foraging and reproductive requirements. Yet, we often lack a functional understanding of how individuals of those species interact with their environment, specifically how their movement is affected by human-induced changes. In order...
Resource Type:: Dissertation
Full Text:: (Martes caurina) in Response to Forest Management Practices in Lassen National Forest, California

The influence of canopy structure and epiphytes on the hydrology of Douglas-fir forests

Creator:: Pypker, Thomas G.
Abstract:: Canopy structure has a significant impact on the canopy hydrology of Douglas-fir forests in the Pacific Northwest (PNW). Whole canopy rainfall interception was measured for young Douglas-fir forest and compared to an old-growth Douglas-fir forest. The old-growth forest had significantly greater canopy water storage capacity (5) and direct throughfall fraction...
Resource Type:: Dissertation
Full Text:: the degree of Doctor of Philosophy in Forest Science presented on December 20, 2004. Title: The

Connecting local values and forest policy to the international forest sustainability dialogue

Creator:: Morré, Susan K.
Abstract:: Sustainable management of the world’s forests is a key component for conserving biodiversity, soil and water resources, mitigating climate change, strengthening economies, and promoting sustainable communities and human well-being, now and in the future. While international cooperation is important, the actual policies and management actions that affect forest conditions and...
Resource Type:: Dissertation
Full Text:: previous national and state surveys that are currently included in the Oregon Indicators, Oregon forest

ScholarsArchive@OSU

Thinning aged Douglas-fir : an analysis of mobilization costs and a log bucking strategy for revenue improvement

Early forest succession following clearcuts in western Oregon : patterns and abiotic controls

Dead wood dynamics and relationships to biophysical factors, forest history, ownership, and management practices in the Coastal Province of Oregon, USA

Multi-scale relationships between aspen and birds in the northern Yellowstone ecosystem

Biogeochemical signals of mountainous forested watersheds' response to disturbance

Evidence of a trophic cascade among wolves, elk, and aspen in Yellowstone National Park, USA

Trophic cascades and large mammals in the Yellowstone ecosystem

Habitat use and movement behavior of Pacific marten (Martes caurina) in response to forest management practices in Lassen National Forest, California

The influence of canopy structure and epiphytes on the hydrology of Douglas-fir forests

Connecting local values and forest policy to the international forest sustainability dialogue

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