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Mineral assessment of open range livestock production on the Warm Springs Indian Reservation

Creator:: Brummer, Fara Ann
Abstract:: The Warm Springs Reservation is located in central Oregon. Livestock production consists of beef (commercial with an Angus, Horned Hereford base) and roping (Corriente and Longhorn) cattle and horses that forage most of the year on the open range within reservation boundaries. Forage consists of annual and perennial grasses and...
Resource Type:: Masters Thesis
Full Text:: Buckhouse, Dr. Jim Males, and Barbara Mason. In addition, I would like to thank Dr. Jennifer Kling of

Sex determination in Nile tilapia, Oreochromis niloticus: gene expression, masculinization methods, and environmental effects

Creator:: Sánchez, Wilfrido M. Contreras
Abstract:: Sex differentiation in fish is a labile process that allows sex inversion in several species. The inherent capacity of fish germ cells to differentiate into oocytes or spermatocytes constitutes a key factor allowing for functional sex inversion. This thesis set out to determine the mechanism involved in steroid-induced sex differentiation...
Resource Type:: Dissertation
Full Text:: unconditional support and continuous advice during the course of this research. Bob Mason, Barbara Shields and

Evaluation of Topography and Seismicity on Shallow Landslide Susceptibility

Creator:: Hess, Daniel M.
Abstract:: Shallow landslides are a prevalent concern in mountainous regions that can result in severe societal, economic, and environmental impacts. The challenge is further compounded as the size and location of a potential slide is often unknown. This study presents a generalized approach for the evaluation of shallow landslide susceptibility using...
Resource Type:: Masters Thesis
Full Text:: graduate. Thanks to Dr. Michael Olsen, Dr. Ben Mason, and Dr. Robert Kennedy for serving on my committee

Uplift capacity and displacement of helical anchors in cohesive soil

Creator:: Young, Jessica
Abstract:: Helical anchors are a type of deep foundation element that can be installed quickly in almost any location and can accept the immediate application of operational loads. The use of helical anchors has expanded in recent decades from its established application in the power transmission industry to more traditional civil...
Resource Type:: Masters Thesis
Full Text:: comments and support provided by my graduate committee: Dr. Karl Haapala, Dr. Ben Mason, and Dr. Mike

Fish movement and assemblage dynamics in a Pacific Northwest riverscape

Creator:: Baxter, Colden V.
Abstract:: This study examined fish movements and assemblage dynamics in the Wenaha, Grande Ronde, Snake river system of northeast Oregon and southeast Washington. I investigated the role of fish movement in the dynamics of stream fish assemblages and evaluated relationships between species movement, assemblage structure, and the heterogeneity of habitat at...
Resource Type:: Dissertation

Chemical cues and the molecular basis of olfactory chemoreception in caudate amphibians

Creator:: Kiemnec, Karen M.
Abstract:: Chemoreception is one of the dominant sensory modalities for many species of salamanders (reviewed in Chapter 2). At least seven of the ten currently recognized salamander families are known to respond to some sort of chemical cue. These responses are as varied as delaying hatching, seeking refuge, or initiating aggressive...
Resource Type:: Dissertation
Full Text:: constructive criticism I received from my graduate committee: Bob Mason, Frank Moore, Dede Olson, and Sue

Genomics-enabled exploration of insect toxicity in the Pseudomonas fluorescens group

Creator:: Rangel, Lorena I.
Abstract:: Pseudomonas is a diverse genus of Gamma proteobacteria that are ubiquitous in the natural environment, including soil, water, plant surfaces, and animals. The Pseudomonas fluorescens group is a diverse collection of seven subgroups and more than 50 named species. This group is known for their production of a variety of...
Resource Type:: Masters Thesis
Full Text:: function of the Manatee program (J. Craig Venter Institute, Gaithersburg, Maryland). Tc genes present in

Ultimate and serviceability limit state reliability-based axial capacity of deep foundations

Creator:: Reddy, Seth C.
Abstract:: Deep foundations are necessary for the construction of many structures, such as bridges and buildings, located in areas unsuitable for shallow foundations. Owing to the inherent variability of soil and the complex changes that occur in the soil adjacent to deep foundations as they are installed, the ability to accurately...
Resource Type:: Dissertation
Full Text:: of my research committee including Dr. H. Benjamin Mason, Dr. T. Matthew Evans, Dr. Michael Olsen

Mutual mate choice in a terrestrial salamander, Plethodon shermani, with long-term sperm storage

Creator:: Eddy, Sarah L.
Abstract:: Sexual selection can influence the mating system of an organism through multiple mechanisms. These mechanisms result in variation in reproductive success among individuals, and include scramble competition, endurance rivalries, contests, mate choice and cryptic choice, and sperm competition. Understanding the mating system of a species requires the identification of which...
Resource Type:: Dissertation
Full Text:: Haig, Kathy Magnusson and Bob Mason. I am also incredibly grateful for my labmates (both here at

Rapid endangered species assessment : a novel approach to improve extinction risk assessments in poorly known species

Creator:: Bianchi, Carlos A.
Abstract:: The number of endangered species is rapidly increasing while paucity of adequate information and resources delays establishment of conservation actions. The IUCN’s listing system is insufficient to determine conservation priorities and many species lack information even to be evaluated (i.e., “data deficient”). Here I proposed and tested the Rapid Endangered...
Resource Type:: Dissertation
Full Text:: . Jonathan Ballou, Dr. Selina Heppell, Dr. Robert Mason, Dr. Christian Torgersen and Dr. J. Antonio Torres

ScholarsArchive@OSU

Mineral assessment of open range livestock production on the Warm Springs Indian Reservation

Sex determination in Nile tilapia, Oreochromis niloticus: gene expression, masculinization methods, and environmental effects

Evaluation of Topography and Seismicity on Shallow Landslide Susceptibility

Uplift capacity and displacement of helical anchors in cohesive soil

Fish movement and assemblage dynamics in a Pacific Northwest riverscape

Chemical cues and the molecular basis of olfactory chemoreception in caudate amphibians

Genomics-enabled exploration of insect toxicity in the Pseudomonas fluorescens group

Ultimate and serviceability limit state reliability-based axial capacity of deep foundations

Mutual mate choice in a terrestrial salamander, Plethodon shermani, with long-term sperm storage

Rapid endangered species assessment : a novel approach to improve extinction risk assessments in poorly known species

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