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Comparing Population Density Estimation Techniques For Columbia Black-Tailed Deer (Odocoileus Hemionus Columbianus): Fecal Standing Crop And Distance Sampling Methods, Jubilee D. Brenneman Jun 2014

Comparing Population Density Estimation Techniques For Columbia Black-Tailed Deer (Odocoileus Hemionus Columbianus): Fecal Standing Crop And Distance Sampling Methods, Jubilee D. Brenneman

Honors Projects

I estimated deer density and population size on Blakely Island, WA, using the fecal standing crop (FSC) method described by Martin et al. (2011). I compared the FSC method with a well established and broadly applicable estimation method, distance sampling. Additionally, architecture of a commonly browsed shrub, Ocean Spray (Holodiscus discolor), was measured as an indicator of browsing pressure. Fecal standing crop was estimated by counting pellet groups along 26, 100 x 2m line transects. Deer density was estimated using these data and the equation derived by Martin et al. (2011). Distance sampling consisted of recording perpendicular distance …


Relationships Between Equine Management Practices And Intestinal Parasite Infection, Abigail Pagel Jan 2014

Relationships Between Equine Management Practices And Intestinal Parasite Infection, Abigail Pagel

Honors Projects

Parasitology is an important area of veterinary medicine, but the risk factors for high parasite loads are not well-understood. Equine intestinal parasites can cause extensive disease and death. In the current study, the relationship between equine intestinal parasite loads and adherence to veterinary guidelines for equine management practices was studied. Satisfactory adherence to guidelines regarding food, pasture, and flooding management was related to lower parasite loads. Adherence to guidelines regarding deworming, quarantine, bedding, and water did not appear to lower parasite loads. Still, adhering to these guidelines has been shown to improve equine welfare, even if they are not related …


Split-Spinach Monitoring Of Rna Aptamer Assembly, Tucker A. Rogers, Grant Andrews Jan 2014

Split-Spinach Monitoring Of Rna Aptamer Assembly, Tucker A. Rogers, Grant Andrews

Honors Projects

As insights into RNA’s many diverse cellular roles continue to be gained, interest and applications in RNA self-assembly and dynamics remain at the forefront of structural biology. The bifurcation of functional molecules into nonfunctional fragments provides a useful strategy for controlling and monitoring cellular RNA processes and functionalities. Herein we present the bifurcation of the preexisting Spinach aptamer and demonstrate its utility as a novel split aptamer system for monitoring RNA self-assembly as well as the processing of pre-short interfering substrates. We show for the first time that the Spinach aptamer can be divided into two nonfunctional halves that, once …


Emergence, Scale, And The Layered Model Of Biological Systems, Katie Morrow Jan 2014

Emergence, Scale, And The Layered Model Of Biological Systems, Katie Morrow

Honors Projects

The layered model of the world—the view that the physical universe is in some important sense ontologically stratified into levels—has commonly been applied in a variety of philosophical contexts, particularly in discussions of reductionism about causation, properties, or theories in science. In this paper I question whether this model, as traditionally understood, adequately reflects a contemporary scientific understanding of the world. Utilizing the layered model, philosophers have tended to focus on composition as the salient interlevel relationship, and to describe systems at temporal instants; while biologists stress the importance of the spatiotemporal scale of description and the environment in governing …