Index Catalog // ScholarsArchive@OSU

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

An integrated study of mechanical forest fuel reduction: quantifying multiple factors at the stand level

Creator:: Bolding, Michael Chad, 1977-
Abstract:: Recent catastrophic wildfires have forced the forest management community to develop new strategies for reducing forest fuels. Tightly spaced understory trees often create a fire ladder allowing surface fires to encroach into the crowns of overstory trees. This situation can lead to intensive, catastrophic, stand-replacement forest fires. Mechanical removal or...
Resource Type:: Dissertation
Full Text:: , Dr. Eric Hansen, Dr. Doug Maguire, and Dr. Glen Murphy provided crucial input and guidance which is

Riparian vegetation and larval Pacific Giant (Dicamptodon tenebrosus) and adult Western Redback (Plethodon vehiculum) salamanders in the Oregon Coast Range

Creator:: Graff, Paula (Paula Hayes)
Abstract:: Riparian areas in the Pacific Northwest provide important biotic and abiotic features, such as down wood, moist microsites, and abundant invertebrate prey that benefit aquatic and terrestrial amphibians. Reported high densities of amphibians from streams and riparian areas in the Pacific Northwest highlight their importance in riparian food webs. Amphibians...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGMENTS I would like to thank my committee members, Dan Edge, Judy Li, and Chris Maguire for

College of Forestry Integrated Research Project : ecological and socioeconomic responses to alternative silvicultural treatments

Creator:: Maguire, Chris C., Chambers, Carol L., and Oregon State University. Forest Research Laboratory
Abstract:: The College of Forestry Integrated Research Project (CFIRP) is an on-going experiment in the eastern Coast Range foothills of western Oregon. Started in 1989, a team of scientists, resource managers, and students at Oregon State University designed and implemented silvicultural alternatives to clearcutting. These silvicultural practices aimed to create and...
Resource Type:: Technical Report
Full Text:: edited by Chris C Maguire and Carol L Chambers WITH GIS SUPPORT BY DEBORA L JOHNSON AND CARTOGRAPHY BY

Taper, crown, and volume responses of a coastal Oregon Douglas-fir stand to sulfur treatments for control of Swiss needle cast

Creator:: Younger, Nicole L.
Abstract:: For nearly two decades, foresters in the Oregon Coast Range have been witnessing a substantial decease in Douglas-fir (Pseudotsuga menziesii var. menziesii [Mirb.] Franco.) vigor and growth, caused by Swiss needle cast (Phaeocryptopus gaeumannii). Currently, no solutions are in sight but aerially-applied sulfur may alleviate Swiss needle cast and its...
Resource Type:: Masters Thesis
Full Text:: committee, Dr. Doug Maguire, Marc Vomocil, and Dr. Richard Waring for their suggestions along the way

Evaluating the effectiveness of commonly used herbaceous weed control regimes in a Pacific Northwest conifer plantation

Creator:: Dinger, Eric
Abstract:: Early in the establishment of Pacific Northwest conifer plantations, herbaceous weeds often decrease seedling growth through competition for soil moisture during the dry summer months. Critical period studies have reported that reductions in competitive weed cover are necessary during the initial years of establishment to avoid reductions in seedling growth....
Resource Type:: Masters Thesis
Full Text:: Rose, Doug Maguire, Carol Mallory-Smith, and Jeff Stone provided a high standard of excellence, a

Properties of marine stratus and stratocumulus derived using collocated MODIS and CALIPSO observations

Creator:: Hayes, Christopher R.
Abstract:: Adiabatic parcel models suggest specific relationships between cloud thickness and cloud properties. Such relationships govern cloud radiative forcing and thus cloud feedbacks in the climate system. Current remote sensing techniques work well at measuring these properties in low-level cloud systems that are overcast. Significant biases exist, however, when measuring cloud...
Resource Type:: Masters Thesis
Full Text:: go out to Drs. Eric Maloney, Mike Unsworth, and Doug Maguire for examining my thesis and serving on

Effect of plant date on subsequent seedling field performance

Creator:: Taylor, Michael Monroe
Abstract:: Douglas-fir (Psudotsuga menziesii (Mirb.) Franco) seedlings were outplanted on eight dates (every three weeks from mid-August 2005 through mid-January 2006). On each plant date, seedlings from a conventional dormancy (CONV) induction treatment, including moisture and nutrient stress, and a shortened daylength (SD) treatment were outplanted on three western Oregon sites...
Resource Type:: Masters Thesis
Full Text:: . The rest of my committee, Dr. Douglas Maguire, Dr. Jennifer Kling, and Dr. David Hann for all of

Non-linear nitrogen dynamics and calcium depletion along a temperate forest soil nitrogen gradient

Creator:: Sinkhorn, Emily R.
Abstract:: Understanding how N availability influences base cation stores is critical for long-term ecosystem sustainability. Indices of nitrogen (N) availability and the distribution of nutrients in plant biomass, soil, and soil water were examined across ten young, unpolluted Douglas-fir (Pseudotsuga menziesii) stands in the Oregon Coast Range spanning a three-fold soil...
Resource Type:: Masters Thesis
Full Text:: extremely helpful with site information and logisitics. Doug Mainwaring helped fill in the gaps of stand

Enhanced mortality equations for trees in the mixed conifer zone of Southwest Oregon

Creator:: Hann, David W., Hanus, Mark L., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting the probability of a tree's dying in the next 5 years are presented for eight conifer and eight hardwood tree species from southwest Oregon. A logistic equation form was used to characterize the probability of mortality. The parameters of the equation were estimated using weighted, maximum likelihood...
Resource Type:: Technical Report
Full Text:: and Wang (1990) reported that SI was significant only for their combination Doug- las-fir/ grand fir

Equations for predicting height-to-crown-base, 5-year diameter-growth rate, 5-year height-growth rate, 5-year mortality rate, and maximum size-density trajectory for Douglas-fir and western hemlock in the coastal region of the Pacific Northwest

Creator:: Hann, David W., Marshall, David D., Hanus, Mark L., and Oregon State University. Forest Research Laboratory
Abstract:: Using existing permanent research plot data, we developed equations for predicting height-to-crown-base (HCB), 5-yr diametergrowth rate (delta D), 5-yr height-growth rate (delta H), 5-yr mortality rate (PM), and the maximum size-density trajectory for Douglasfir and western hemlock in the coastal region of the Pacific Northwest. With the exception of the...
Resource Type:: Technical Report
Full Text:: (Hann et al. 1997) that would be applicable to established man- aged and unmanaged stands of Doug- las

Enhanced height-growth-rate equations for undamaged and damaged trees in southwest Oregon

Creator:: Hann, David W., Hanus, Mark L., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting the 5-yr height growth rate of a tree are presented for six conifer species from southwest Oregon. Equations for the combination of undamaged and damaged trees were estimated with weighted nonlinear regression techniques. These equations are being incorporated into the new southwest Oregon version of ORGANON, a...
Resource Type:: Technical Report
Full Text:: installation (Maguire and Hann 1987), the conversion equation described in Hann and Hanus (2002) was used to

Regenerating coastal forests in Oregon : an annotated bibliography of selected ecological literature

Creator:: Loucks, Donna M., Knowe, Steven A. (Steven Alan), 1954-, Shainsky, Lauri J., Pancheco, Alex A., and Oregon State University. Forest Research Laboratory
Abstract:: This annotated bibliography was compiled to provide a comprehensive list of sources on the ecological factors that affect forest regeneration. Abstracts from 494 publications are indexed by author, species, and subject, and are arranged into 4 major sections. Topics include the effects of biotic factors, abiotic factors, and stand and...
Resource Type:: Technical Report
Full Text:: white fir occurred at lower light levels than did Douglas-fir. Doug- las-fir leader elongation was

Predicting height to crown base for undamaged and damaged trees in southwest Oregon

Creator:: Hanus, Mark L., Hann, David W., Marshall, David D., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting height to crown base are presented for tree species from southwest Oregon. Equations for undamaged and damaged trees were estimated with weighted nonlinear regression techniques. The effects of specific damaging agents on the height to crown base were explored, and damage correction factors were estimated. The damage...
Resource Type:: Technical Report
Full Text:: . Crown change (ΔCR) can be pre- dicted directly (e.g., Maguire and Hann 1990), or static equations for

Influences of high severity fire and postfire logging on avian and small mammal communities of the Siskiyou Mountains, Oregon, USA

Creator:: Fontaine, Joseph B.
Abstract:: High severity fire is a historical and integral disturbance process in coniferous forest types. Compounded disturbances such as multiple fires or post-disturbance management activities are increasingly common, but ecological responses are not well understood and may represent novel types of disturbances. I studied bird and small mammal communities in the...
Resource Type:: Dissertation
Full Text:: committee (Pat Kennedy, Dave Pyke, Alix Gitelman, and Doug Maguire) for their guidance and support

A descriptive analysis of the tasks and focus of individual supervision in an agency setting

Creator:: Aasheim, Lisa Langfuss
Abstract:: Individual supervision is a widely accepted practice in the counseling profession, yet the tasks and focus of individual supervision in an agency setting remain largely uninvestigated. The tasks and focus areas inherent to agency supervision are especially important to counselors, counselor educators, agency administrators, and licensing boards, all of whom...
Resource Type:: Dissertation
Full Text:: pre-licensed supervisees (Borders & Cashwell, 1995; Gabbay, Kiemle & Maguire, 1999; Schultz, Ososkie

Salmon anchor habitat strategy : invited expert responses

Creator:: Institute for Natural Resources and Oregon. Department of Forestry
Abstract:: This document compiles written responses by experts in their respective fields to questions from the Salmon Anchor Habitat Work Group about the Salmon Anchor Habitat Strategy component of Oregon Department of Forestry Northwestern Oregon State Forest Management Plan.
Resource Type:: Technical Report

Impact of Armillaria and annosus root diseases on stand and canopy structure, species diversity, and down woody material in a central Oregon mixed-conifer forest

Creator:: Fields, Kristen L. N.
Abstract:: White and grand fir are both valuable components of the mixed-conifer stand structure managed for late-successional reserves in central Oregon. However, they are often short-lived species because of high susceptibility to root diseases, defoliating insects, bark beetles, and wildfire. This study focuses on the effects of root diseases caused by...
Resource Type:: Masters Thesis
Full Text:: members, Dr. Doug Maguire and Dr. Jeff Morrell for the time and effort you put into reading and editing

Trask River watershed analysis : final report, August 2003

Creator:: E & S Environmental Chemistry, Inc., Snyder, Kai U., Sullivan, Timothy J., Moore, Deian L., Raymond, Richard B., Gilbert, Erin H., United States. Bureau of Land Management, and Oregon. Department of Forestry
Abstract:: Recommendations are provided in this watershed analysis to identify actions and management decisions on the part of BLM that might improve watershed health in the Trask River watershed.
Resource Type:: Technical Report
Full Text:: , Darrin Neff, Andy Pampush, Jim Paul, Leslie Pittman, Dave Plawman, Doug Robin, David Roche, John Shipman

Translation of dengue virus RNA : influence of the untranslated regions on 5´-cap dependent translation and ribosome scanning

Creator:: Chiu, Wei-Wei
Abstract:: In this thesis, I studied the translation of dengue virus RNA using a luciferase reporter gene system in Vero cells. The dengue reporter mRNA construct, which harbors 5´-terminal viral nts and 3´-terminal nts, could be translated efficiently compared to an alpha globin reporter construct. The 5´-cap structure and 3´-untranslated region...
Resource Type:: Dissertation

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