Index Catalog // ScholarsArchive@OSU

The effects of mechanical damage on residual coastal Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco) following commercial thinning

Creator:: Kiser, James D.
Abstract:: Commercial thinning operations can result in damage to residual stems. A literature review revealed that little was known about the effects of residual logging wounds with regard to rotation-age commercial conifers, particularly Douglas-fir. An experiment to examine fungal colonization of Douglas-fir following logging damage showed that while damage was significant...
Resource Type:: Dissertation
Full Text:: : ________________________________________________ Douglas Maguire Commercial thinning operations can result in damage to residual stems

The effects of supplemental home instruction by parents utilizing the data based gymnasium instructional model on the performance of selected motor skills with moderately and severely mentally retarded children

Creator:: Maguire, Paul A.
Abstract:: The purpose of this study was to determine if parents of students could improve the motor performance of their moderately and severely mentally retarded children through the implementation of the Data-Based Gymnasium (DBG) Instructional Model as a supplement to the school program. The DBG Instructional Model is an individualized system...
Resource Type:: Dissertation
Full Text:: Moderately and Severely Mentally Retarded Children AN ABSTRACT OF THE THESIS OF Paul A. Maguire, Jr. for

Snag longevity, bird use of cavities, and conifer response across three silvicultural treatments in the Oregon Coast Range

Creator:: Walter, Scott T.
Abstract:: In the interest of meeting multiple forest management goals that include maintenance of wildlife, particularly cavity-nesting birds, uneven-aged silvicultural treatments are used increasingly in the Pacific Northwest. However, questions remain regarding the responses of cavity-nesting birds and residual green trees to different harvest intensities and patterns. To study these issues,...
Resource Type:: Masters Thesis
Full Text:: Range Abstract approved: Sign_ature redacted for pdyacv. Chris C. Maguire In the interest of

Exploration of statistical methods for synthesizing the effects of variable-retention harvesting on multiple taxa

Creator:: Lam, Tzeng Yih
Abstract:: Variable-retention harvesting was proposed to reduce loss of biodiversity and ecosystem processes associated with late-seral Douglas-fir (Pseudotsuga menziesii) forests in the Pacific Northwest. The Demonstration of Ecosystem Management Options experiment was established to test this hypothesis. Analysis presents various challenges to drawing statistical inferences about treatment effects. This dissertation explored...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Douglas A. Maguire Variable-retention harvesting was proposed to reduce loss of

Simulating Wood Properties in the Context of a Growth and Yield Model for Planted Douglas-fir

Creator:: Osborne, Nathaniel L.
Abstract:: Forest growth and yield models are critical to supporting decision making in forestry, but often lack considerations for wood properties. The feasibility of simulating wood properties in the context of a Douglas-fir individual tree growth and yield model was evaluated. This assessment explored the effect of predicted sapwood width, stem...
Resource Type:: Dissertation
Full Text:: : ____________________________________________________________ Douglas A. Maguire Forest growth and yield models are critical to supporting decision

The effect of coagulation conditions on floc size distribution and morphology : implications for downstream treatment processes

Creator:: Maguire, Ian R.
Abstract:: Coagulation and flocculation are commonly used in drinking water treatment as a means of destabilizing and aggregating particles and promoting adsorption of dissolved organic carbon (DOC). In practice, jar tests are used to determine optimal conditions for the removal of turbidity and DOC. However, beyond the inferences that can be...
Resource Type:: Masters Thesis
Full Text:: . by Ian R. Maguire A THESIS Submitted to Oregon State University in

Seedling response to vegetation management in northeastern Oregon

Creator:: Lindsay, Amanda A.
Abstract:: Northeastern Oregon geology and climate provides moderately productive conditions for forest management and timber production. Although site preparation and planting are commonly used silvicultural practices, little research exists on the efficacy of specific forest herbicides and responses of seedling survival and growth in this region. This research seeks to improve...
Resource Type:: Masters Thesis
Full Text:: approved: Micheal Newton, Douglas A. Maguire Northeastern Oregon geology and climate provides

Drivers of Productivity Differences between Native and Exotic Range Douglas-fir Plantations in Oregon and New Zealand

Creator:: Gilson, Liam W.
Abstract:: In this thesis, we first examine the principle hypotheses behind the improved exotic growth of select timber species, and the evidence for each, with special focus on studies which examine growth between several ranges of a species. We find that literature suggests environmental factors directly tied to net primary production...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Douglas A. Maguire In this thesis, we first examine the principle hypotheses behind the

Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

Creator:: Weiskittel, Aaron R.
Abstract:: Forest growth models in the Pacific Northwest are predominantly empirical. Predictions of yield under alternative silvicultural regimes cannot rely completely on field trials; yet empirical growth models are often inadequate for extrapolating untested regimes and genotypes. The limitations of current models include (1) long time-steps (e.g. 5-10 years); (2) insufficient...
Resource Type:: Dissertation
Full Text:: , composed of Drs. Doug Maguire (major advisor), Robert A. Monserud, Temesgen Hailemariam, Randy Johnson

Alterations in Douglas-fir crown structure, morphology, and dynamics imposed by the Swiss needle cast disease in the Oregon Coast Range

Creator:: Weiskittel, Aaron R.
Abstract:: Plants respond to defoliation in many different and complex ways, depending on their growth habit and form as well as the extent and duration of the defoliation. Tree crowns have been shown to be quite sensitive to disturbances such as defoliation, however quantitative relationships have rarely been developed, making the...
Resource Type:: Masters Thesis
Full Text:: Oregon Coast Range Abstract approved Douglas A. Maguire Plants respond to defoliation in many

ScholarsArchive@OSU

The effects of mechanical damage on residual coastal Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco) following commercial thinning

The effects of supplemental home instruction by parents utilizing the data based gymnasium instructional model on the performance of selected motor skills with moderately and severely mentally retarded children

Snag longevity, bird use of cavities, and conifer response across three silvicultural treatments in the Oregon Coast Range

Exploration of statistical methods for synthesizing the effects of variable-retention harvesting on multiple taxa

Simulating Wood Properties in the Context of a Growth and Yield Model for Planted Douglas-fir

The effect of coagulation conditions on floc size distribution and morphology : implications for downstream treatment processes

Seedling response to vegetation management in northeastern Oregon

Drivers of Productivity Differences between Native and Exotic Range Douglas-fir Plantations in Oregon and New Zealand

Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

Alterations in Douglas-fir crown structure, morphology, and dynamics imposed by the Swiss needle cast disease in the Oregon Coast Range

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