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Filtering by: Creator Wheeler, Greg Committee Member Blaustein, Andrew

Implications of cougar prey selection and demography on population dynamics of elk in northeast Oregon

Creator:

Clark, Darren A.

Abstract:

Mule deer (Odocoileus hemionus hemionus) and Rocky Mountain elk (Cervus canadensis nelsoni; hereafter elk) populations in northeast Oregon have declined in the past 10 to 20 years. Concurrent with these declines, cougar (Puma concolor) populations have apparently increased, leading to speculation that predation by cougars may be responsible for declining...

Resource Type:

Dissertation

Full Text:

conducting large carnivore research under the direction of Bruce. Greg Davidson provided invaluable
Semi-volatile organic compounds and developing organisms : accumulation in California mountain tadpoles in the field and fish embryo exposures in the laboratory

Creator:

Stanley, Kerri A.

Abstract:

The atmospheric transport and deposition of semi-volatile organic compounds (SOCs), including current and historic use pesticides, polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs), to mountain ecosystems may result in the exposure of tadpoles to these SOCs. This exposure has been implicated in amphibian population declines in California. Tadpoles encounter...

Resource Type:

Dissertation

Full Text:

including Crystal Usenko, Julie Layshock, Carl Issacson, Aurea Chiaia, Greg Sower, Angie Perez, Lucas