Life Sciences Commons^™

An Evaluation Of Deterrent Methods Utilized To Prevent Crop Raiding By African Elephants (Loxodonta Africana) In The Kasigau Wildlife Corridor, Kenya, Rebecca Lynn Von Hagen

Masters Theses & Specialist Projects

Escalating human elephant conflict (HEC) continues to be a contributing factor

towards elephant decline, and crop raiding is the most common form of negative

human-elephant interactions. For communities that cannot reverse or prevent crop

raiding, it is necessary to contain HEC events through deterrent measures. Few

deterrent measures exist that combine practicality and affordability while also

preventing habituation by elephants. This project focused on comparing the efficacy of

deterrent methods to assess which was the most successful at preventing elephants

from entering crops in the farming community of Sasenyi, Kenya. In this paired-control

study, four deterrent methods were evaluated: acacia …

Elevated Carbon Dioxide Alters Neural Signaling And Anti-Predator Behaviors In Ocean Phase Coho Salmon (Oncorhynchus Kisutch), Chase Williams, Evan Gallagher, Andrew Dittman, Paul Mcelhany, Shallin Busch, Theo Bammler, James Macdonald

Salish Sea Ecosystem Conference

Elevated levels of CO2 have been shown to disrupt numerous neurological sensory systems in marine fish. This is of concern as Pacific salmon rely heavily on an important neurosensory system for survival, the olfactory system. In this study, we investigated the effects of elevated CO2 on a salmon olfactory driven behavior, as well as changes in neural signaling and gene expression within the peripheral and central olfactory system. Juvenile coho salmon were exposed to three different levels of CO2 for two weeks. These included a current CO2 level with a pH of 7.8, a medium CO2 level with a pH …

Does Eelgrass Act As An Ocean Acidification Refuge For Shellfish In The Salish Sea?, Bonnie Becker, Michelle Mccartha, Micah Horwith

Salish Sea Ecosystem Conference

Marine waters worldwide are becoming more acidic due to increasing atmospheric carbon dioxide levels. Changes in pH are heterogeneous in space and time and can be affected by physical and biological processes, including photosynthesis and respiration of plants and animals. Previous studies have shown that seagrass beds, which contain a large amount of plant biomass, can alter the carbonate chemistry in the immediate area, with higher pH during the day and lower pH at night. We explored the effects of this pattern on bivalve shellfish at four sites in Puget Sound and Willapa Bay. Pumped water samples were taken at …