Index Catalog // ScholarsArchive@OSU

Measuring and Modeling the Structure of Coniferous Trees with Point Clouds Data

Creator:: Fang, Rong
Abstract:: Coniferous trees are a major North American crop that has been intensively managed for its commercial value, while also serving as critical habitat for abundant wildlife and as carbon sinks. Having diverse functions, North American temperate coniferous forests have become a research hotspot for numerous scientific studies aiming to integrate...
Resource Type:: Dissertation
Full Text:: committee members Dr. Temesgen Hailemariam, Yuan Jiang, Darrell Ross, and Dave Shaw for their guidance and

Phylogeography and Evolution of Effector Genes in Phytophthora Species

Creator:: Shakya, Shankar K.
Abstract:: Plant pathogens in the genus Phytophthora are known to cause disease on field crops, nursery plants, and forest trees. The best known example probably is Phytophthora infestans, which triggered the infamous Irish potato famine. Other important Phytophthora species include: P. ramorum (sudden oak death pathogen), P. sojae (soybean root rot...
Resource Type:: Dissertation
Full Text:: and Darell Ross who constantly provided feedback to my work. Faculty, staffs and students of Botany

Application of Infrared Spectroscopy for Determination of Wood Natural Durability

Creator:: Lipeh, Shahlinney
Abstract:: Natural durability remains one of the most attractive characteristics of wood, and helps wood obtain a premium price. A worldwide shift towards the use of younger trees from intensively managed forests has created greater concerns about wood quality, especially the wood’s resistance to fungi and insects. Wood durability is assessed...
Resource Type:: Dissertation
Full Text:: guiding me in every step of my writing process.  Committee members Dr. Darrell W. Ross, Dr. Seri C

Spalting Fungi : Genetic Identification, Material Interactions and Microscopical Characteristics of Extracted Pigments

Creator:: Vega Gutiérrez, Sarath Mercedes
Abstract:: Spalting fungi show strong potential as natural colorants on a variety of materials, specifically textiles and wood. Four species of spalting fungi are currently utilized in this manner: Scytalidium cuboideum, which produces a red pigment called draconin red, Scytalidium ganodermophthorum, that produces an unknown yellow pigment, and Chlorociboria aeruginosa and...
Resource Type:: Dissertation

Minimizing total cost of construction, maintenance, and transportation costs with computer-aided forest road design

Creator:: Akay, Abdullah Emin
Abstract:: The systems currently available for forest road design are not capable of making computer-aided design judgments such as: 1) automated generation of alternative grade lines, 2) optimizing vertical alignment, 3) minimizing total cost of construction, maintenance, and transportation costs, and 4) aiming for least environmental impacts. In recent years, advances...
Resource Type:: Dissertation

Presence, relative abundance, and resource selection of bats in managed forest landscapes in western Oregon

Creator:: Arnett, Edward B.
Abstract:: I studied presence, relative abundance, and resource selection of bats in managed Douglas-fir (Pseudotsuga menziesii) forests in western Oregon from May through September, 1999–2001. Species richness was not related to elevation, density of snags, or length of edge or perennial streams in sampled landscapes. I captured bats more frequently in...
Resource Type:: Dissertation
Full Text:: to thank members of my original committee, Drs. John Hayes, David Hibbs, Darrell Ross, Richard

Behavior of Drosophila suzukii in Relation to Abiotic, Biotic, and Nutrient Factors

Creator:: Park, Kyoo Rok
Abstract:: Drosophila suzukii (Diptera: Drosophilidae), is a serious pest in soft and stone fruit industries worldwide. The unique serrated ovipositor of female Drosophila suzukii allowed the species to reproduce in intact, ripening fruit before the harvest. Current control methods rely heavily on insecticide application, only becoming less profitable due to the...
Resource Type:: Dissertation
Full Text:: . Darrell Ross, and Dr. Jennifer Kling, for their assistance in shaping my thesis. Jessica Buser-Young

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

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

ScholarsArchive@OSU

Measuring and Modeling the Structure of Coniferous Trees with Point Clouds Data

Phylogeography and Evolution of Effector Genes in Phytophthora Species

Application of Infrared Spectroscopy for Determination of Wood Natural Durability

Spalting Fungi : Genetic Identification, Material Interactions and Microscopical Characteristics of Extracted Pigments

Minimizing total cost of construction, maintenance, and transportation costs with computer-aided forest road design

Presence, relative abundance, and resource selection of bats in managed forest landscapes in western Oregon

Behavior of Drosophila suzukii in Relation to Abiotic, Biotic, and Nutrient Factors

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

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

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