Index Catalog // ScholarsArchive@OSU

Social Context Affects Response to an Acute Stressor in Captive Red Crossbills, Loxia curvirostra

Creator:: Tsuchihashi, Natsumi
Abstract:: Sociality relies upon mechanisms that permit group living through a balance of costs and benefits. However, it is not fully known how specific social contexts influence behavioral and physiological outcomes, and more broadly, how responses to social situations contribute to social organization. A recent experiment investigating the relationship between social...
Resource Type:: Honors College Thesis
Full Text:: _____________________________________________________________________ Robert T. Mason, Committee Member, representing Integrative Biology

Giant gartersnake spatial ecology in agricultural and constructed wetlands

Creator:: Valcarcel, Patricia M.
Abstract:: The spatial ecology of a species is a vital component of informed management and restoration plans, yet little is known about how animals use restored or constructed habitat. We assessed home ranges, core areas, and habitat selection of the federally threatened Giant Gartersnake (Thamnophis gigas) using rice agricultural habitat and...
Resource Type:: Masters Thesis
Full Text:: thank my committee members, Tiffany Garcia and Robert Mason, for their help in designing the

Estimation of Population Age Structure, Detection Probability, and Density of Red Tree Voles in Oregon

Creator:: Marks-Fife, Chad A.
Abstract:: Red tree voles (Arborimus longicaudus) are a unique species of Arvicoline rodent found in western Oregon and northwest California. Their preferred habitat is mature and old-growth coniferous forest dominated by Douglas-fir (Pseudotsuga menziesii). Tree voles are an important prey item for northern spotted owls and many other predators, but are...
Resource Type:: Masters Thesis
Full Text:: which I can never adequately thank him. I want to thank my committee members, Dan Edge and Bob Mason

Energetics and mechanics of swing phase during terrestrial locomotion

Creator:: Nelson, Frank E.
Abstract:: Previous attempts to understand the factors affecting the energetic cost of locomotion have found a direct link between the energetic cost and the mechanical work done during periods when the limb is in contact with the ground. However, when the limb is not in contact with the ground during the...
Resource Type:: Dissertation
Full Text:: members John A. Ruben, Robert T. Mason, and Alfred Menino for challenging, guiding and supporting me

Foraging ecology of barred owls where they are outcompeting the threatened northern spotted owl

Creator:: Baumbusch, Ryan C.
Abstract:: Following European-American colonization of North America and associated landscape changes, barred owls (Strix varia) underwent a dramatic expansion of their historical range. The barred owl expanded across the previously tree-less Great Plains that had limited their distribution, and into the forests along the west coast. In these western forests they...
Resource Type:: Dissertation
Full Text:: committee, Drs. Taal Levi, Bob Mason, Todd Wilson, and Klaus Puettmann for thoughtful input and

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

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

Rearing density as a driver of adaptation to captivity and traits under selection by domestication in hatchery reared steelhead (Oncorhynchus mykiss)

Creator:: Thompson, Neil F.
Abstract:: Releasing hatchery reared salmon and steelhead to supplement threatened and endangered populations is a widely used conservation tool. One issue with this strategy is hatchery fish have lower reproductive fitness than wild fish when spawning in the wild. One of the drivers of fitness loss in steelhead is adaptation to...
Resource Type:: Dissertation
Full Text:: State. Jerri Bartholomew, Shaun Clements, Bob Mason and David Noakes provided insightful discussion

The physiology and anatomy of the esophagus of normal llamas and llamas with megaesophagus

Creator:: Sukon, Peerapol
Abstract:: Solid-state esophageal manometry was used to study physiology of the normal llama esophagus. Esophageal baseline pressures, esophageal response to water swallows and to balloon distention, and other motor activity of the esophagus during experiments were measured throughout the entire length of the esophagus. Gross and histologic anatomy, muscle fiber type...
Resource Type:: Dissertation

ScholarsArchive@OSU

Social Context Affects Response to an Acute Stressor in Captive Red Crossbills, Loxia curvirostra

Giant gartersnake spatial ecology in agricultural and constructed wetlands

Estimation of Population Age Structure, Detection Probability, and Density of Red Tree Voles in Oregon

Energetics and mechanics of swing phase during terrestrial locomotion

Foraging ecology of barred owls where they are outcompeting the threatened northern spotted owl

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

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

Rearing density as a driver of adaptation to captivity and traits under selection by domestication in hatchery reared steelhead (Oncorhynchus mykiss)

The physiology and anatomy of the esophagus of normal llamas and llamas with megaesophagus

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