Index Catalog // ScholarsArchive@OSU

Navigating food and foes in the savanna : nutrition, infections and spatial ecology in African buffalo

Creator:: Combrink, Hendrik J.
Abstract:: The intricate relationship between wildlife health and the quality of their environment is well established, with technological advances increasing our understanding and aiding the unraveling of underlying mechanisms. Large herbivores require forage of sufficient quality to maintain their condition to reproduce and survive, all while warding off parasites and predators...
Resource Type:: Dissertation
Full Text:: , A. F. Russell, J. Zhang, G. E. Hill, and S. V. Edwards (2011). “Rapid evolution of disease

The Social Interactions of Pseudomonas aeruginosa

Creator:: Smith, Parker
Abstract:: Pseudomonas aeruginosa is a ubiquitous environmental microbe, opportunistic pathogen, and a highly social organism. P. aeruginosa utilizes a wide array of cooperative behaviors to adapt to the environmental conditions around it. These behaviors include quorum sensing (QS), a form a cell-to-cell signaling that coordinates the expression of secreted products in...
Resource Type:: Dissertation
Full Text:: proportion of cheaters is high (right). (G) Non-social adaptation. Mutations in cooperator cells allow

Role of GacSA Two-component System and Bacterial Surface Attachment in Pseudomonas syringae Virulence

Creator:: O'Malley, Megan R.
Abstract:: Pseudomonas syringae are plant pathogenic bacteria that cause disease by rapidly multiplying within the aboveground tissues of host plants. Growth of P. syringae within plant host tissues requires the disarmament of host immune defenses that limit microbial growth. To combat host defenses, P. syringae deploys a type III secretion system...
Resource Type:: Dissertation
Full Text:: , spatial, and genetic vari- ability of leaf-associated bacterial populations, In N. J. Fokkema and J. van

Measuring the Economic Impacts of Natural Disturbances and Policy Interventions on Log and Lumber Markets in Oregon

Creator:: Zhai, Jun
Abstract:: The forest sector forms an important part of Oregon’s economy, especially in rural communities. However, the economic performance and development of the sector are subject to both significant natural disturbances and to new and existing policies. The most common and disastrous natural disturbances in Oregon are wildfires. The Biscuit Fire...
Resource Type:: Dissertation

Balancing Timber Production and Conservation in the Oregon Coast Range: an Examination of the Response by Birds and Bird-induced Ecosystem Services to Forest Management at Multiple Scales

Creator:: Harris, Scott H.
Abstract:: Society derives many critical and irreplaceable values from forests. With a growing global human population and rates of consumption, forests are under increasing pressure to provide all these values simultaneously. To meet societal demands for wood products, tree plantations are becoming increasingly common and are replacing native forests. Yet, forests...
Resource Type:: Dissertation
Full Text:: Abstract approved: ______________________________________________________ Matthew G. Betts

A Microeconomic Analysis of Wildfire Suppression Programs in the Western United States

Creator:: Rossi, David J.
Abstract:: This dissertation studies the microeconomics of forest fire suppression programs. It starts with an inquiry into the causes of increasing shares of public land management budgets devoted to wildland fire suppression in lieu of hazardous fuel reduction or other pre-fire risk mitigation programs. The first two chapters consider competing economic...
Resource Type:: Dissertation
Full Text:: increasing (Lueck and Yoder, 2013). While climatic factors contribute to increasing fire severity (van

Value of Prior and Novel Information in Managing a Mixed-Stock Recreational Chinook Salmon Fishery

Creator:: Jensen, Alexander J.
Abstract:: Many economically important Pacific salmon fisheries along the west coast of North America are mixed-stock, recreational systems, in which managers strive to account for interactions between fish, anglers, and management policy while balancing fishery access against conservation of vulnerable stocks. Specific challenges facing fisheries managers include limited control over angling...
Resource Type:: Dissertation
Full Text:: and without stochasticity for each stock (a-g). .................................112 Figure 4.4

Who Benefits from Development Aid? Exploring Agroforestry Technology Adoption, Food Security, and Path Dependence in Rural Tanzania

Creator:: Bruck, Sonia R.
Abstract:: Rural farmers in Tanzania depend on subsistence agriculture for their livelihood. Poor soil conditions, and the danger of drought, increases the risk of cyclical poverty conditions. Aid organizations, including the World Agroforestry Centre (ICRAF) and the Millennium Development Projects (MDP), as well as industrial tobacco industry, have provided development programs...
Resource Type:: Dissertation
Full Text:: Pannell 1999, Ersado et al. 2004, Gebreegziabher and van Kooten 2013). The richness of observed

Evolutionary Dynamics of Genomes and Endosymbionts in Plant-Parasitic Nematodes

Creator:: Wasala, Wasala Mudiyanselage Sulochana K.
Abstract:: Plant-parasitic nematodes cause more than US $100 billion in annual agriculture loss worldwide. Thorough knowledge of their genetic diversity, and interactions with endosymbionts and environment have the potential to provide valuable insights into the basic biology of these animals, and assist future efforts aimed at management of these plant parasites....
Resource Type:: Dissertation
Full Text:: differentiated allele frequencies at certain loci among G. pallida populations across time suggested adaptive

Orbiting the Genus of False Units: Dynamics of Phage Genomes and Nematode Microbiomes Associated with Pseudomonas spp.

Creator:: Ha, Anh D.
Abstract:: Pseudomonas is a diverse, ubiquitous, and widely studied genus of bacteria. As Pseudomonas species occupy a wide range of niches in the ecosystem, they have made remarkable biological impacts. Better understanding of Pseudomonas biology, genetic diversity, and functional interactions with other organisms and the environment will provide valuable insights into...
Resource Type:: Dissertation
Full Text:: few genomes larger than 100 kb. Ranked plot of G+C content (inset) reveals a range of 37-66%. (B

ScholarsArchive@OSU

Navigating food and foes in the savanna : nutrition, infections and spatial ecology in African buffalo

The Social Interactions of Pseudomonas aeruginosa

Role of GacSA Two-component System and Bacterial Surface Attachment in Pseudomonas syringae Virulence

Measuring the Economic Impacts of Natural Disturbances and Policy Interventions on Log and Lumber Markets in Oregon

Balancing Timber Production and Conservation in the Oregon Coast Range: an Examination of the Response by Birds and Bird-induced Ecosystem Services to Forest Management at Multiple Scales

A Microeconomic Analysis of Wildfire Suppression Programs in the Western United States

Value of Prior and Novel Information in Managing a Mixed-Stock Recreational Chinook Salmon Fishery

Who Benefits from Development Aid? Exploring Agroforestry Technology Adoption, Food Security, and Path Dependence in Rural Tanzania

Evolutionary Dynamics of Genomes and Endosymbionts in Plant-Parasitic Nematodes

Orbiting the Genus of False Units: Dynamics of Phage Genomes and Nematode Microbiomes Associated with Pseudomonas spp.

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