Index Catalog // ScholarsArchive@OSU

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:: ABSTRACT OF THE DISSERTATION OF Nathaniel L. Osborne for the degree of Doctor of Philosophy in

Influence of silvicultural treatments, overstory, and understory vegetation on quaking aspen (Populus tremuloides) regeneration in southeastern Idaho

Creator:: Muñoz, Bethany L.
Abstract:: Quaking aspen (Populus tremuloides Michx.) is known to be a widely distributed, shade-intolerant and short-lived hardwood found in both seral, even-aged and stable, uneven aged stands. There have been reports of extensive aspen mortality, crown thinning, and branch dieback across North America that have been linked to the occurrence of...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Bethany L. Muñoz for the degree of Master of Science in Forest Resources

The impact of social capital on well-being in rural communities

Creator:: Harrison, Jane L.
Abstract:: This study seeks to explore the relationship between social capital and well-being in the rural Western United States. Mixed methods were employed to understand the concepts from multiple angles, using both profile and process indicators. An econometric approach used profile indicators and relied on data from 414 counties in the...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jane L

Water Use and Competitiveness of Senecio sylvaticus in Young Pseudotsuga menziesii Plantations in Western Oregon

Creator:: Cowden, Reed J.
Abstract:: Competition for soil water resources between newly planted Douglas-fir seedlings and aggressive early-seral plants, such as Senecio sylvaticus [L.] (Woodland groundsel, Senecio), can create drought conditions that impact tree seedling physiology, growth and likelihood of mortality. However, the specific impact of Senecio on soil moisture dynamics and inducement of water...
Resource Type:: Masters Thesis
Full Text:: Douglas-fir seedlings and aggressive early-seral plants, such as Senecio sylvaticus [L.] (Woodland

Drivers of plant community dynamics in sagebrush steppe ecosystems : cattle grazing, heat and water stress

Creator:: Reisner, Michael D.
Abstract:: Sagebrush steppe ecosystems are one of the most widespread but endangered ecosystems in North America. A diverse array of human-related stressors has gradually compromised these ecosystems' resilience to disturbance and invasion by Bromus tectorum (cheatgrass). The role of the foundational shrub Artemisia as a driver of herbaceous community structure and...
Resource Type:: Dissertation
Full Text:: conditions. I would like to thank Jim Grace with the U.S. Geological Survey for his generous time teaching

Treatment options for controlling Brachypodium sylvaticum and impacts on native vegetation

Creator:: Fjeran, Taylor K.
Abstract:: Invasive vegetation control studies traditionally aim to control existing populations as well as limit future spread of the species. However, little additional attention has been dedicated to aiding native communities to recover and reestablish. One prominent example of a studied invasive is Brachypodium sylvaticum (Huds.) P. Beauv. (false brome), a...
Resource Type:: Masters Thesis
Full Text:: - fertility, short generation time, and close relationship to the annual model Brachypodium distachyon (L

Recovering lost ground: Effects of soil burn intensity on nutrients and ectomycorrhiza communities of ponderosa pine seedlings

Creator:: Cowan, Ariel D., Smith, Jane E., and Fitzgerald, Stephen A.
Abstract:: Fuel accumulation and climate shifts are predicted to increase the frequency of high-severity fires in pon-derosa pine (Pinus ponderosa) forests of central Oregon. The combustion of fuels containing large downedwood can result in intense soil heating, alteration of soil properties, and mortality of microbes. Previousstudies show ectomycorrhizal fungi (EMF) improve...
Resource Type:: Article
Full Text:: l e i n f o Article history: Received 19 May 2016 Received in revised form 19 July 2016 Accepted 20

Complexity of food web interactions in a large mammal system

Creator:: Eisenberg, Cristina
Abstract:: Food webs consist of a combination of bottom-up (resource-driven) and top-down (predator-driven) effects. The strength of these effects depends on the context in which they occur. I investigated food web (trophic) relationships between wolf (Canis lupus) predation, elk (Cervus elaphus) herbivory, aspen (Populus tremuloides Michaux) recruitment, and fire. The study...
Resource Type:: Dissertation
Full Text:: -down effects function (Carpenter et al. 1985) and can help quantify these effects (Grace 2006

Characterization of Fungal Endophyte Populations in Ponderosa Pine (Pinus ponderosa) Needles in The B&B Fire Complex of The Eastern Cascade Mountain Range

Creator:: Scrivani, James V.
Abstract:: Forests are some of the most ecologically diverse and dense habitats on the planet. Research shows that the endophyte community, or the fungi, bacteria, and viruses within a forest ecosystem is highly diverse. Fungal endophytes are defined as fungi that live within the tissues of host plants. Relationships between fungal...
Resource Type:: Masters Thesis
Full Text:: being identified to date (D. L. Hawksworth & Luecking, 2017). While there are about 300,000 species

Relationship of Soil Fungal Communities and Burn Severity to Post-Fire Vegetation Response

Creator:: Roach, Skylar K.
Abstract:: The effects of fire on above-ground forest systems have been extensively studied. However, research on fire effects on belowground processes is lacking. While the soil microbiome is understood to be vital to conifer growth and regeneration, the complexity of soils means that research on the topic has largely been accomplished...
Resource Type:: Masters Thesis
Full Text:: central Oregon USA pumice soils. International Journal of Wildland Fire. 25(11): 1202-1207 DeBano L

ScholarsArchive@OSU

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

Influence of silvicultural treatments, overstory, and understory vegetation on quaking aspen (Populus tremuloides) regeneration in southeastern Idaho

The impact of social capital on well-being in rural communities

Water Use and Competitiveness of Senecio sylvaticus in Young Pseudotsuga menziesii Plantations in Western Oregon

Drivers of plant community dynamics in sagebrush steppe ecosystems : cattle grazing, heat and water stress

Treatment options for controlling Brachypodium sylvaticum and impacts on native vegetation

Recovering lost ground: Effects of soil burn intensity on nutrients and ectomycorrhiza communities of ponderosa pine seedlings

Complexity of food web interactions in a large mammal system

Characterization of Fungal Endophyte Populations in Ponderosa Pine (Pinus ponderosa) Needles in The B&B Fire Complex of The Eastern Cascade Mountain Range

Relationship of Soil Fungal Communities and Burn Severity to Post-Fire Vegetation Response

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