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Filtering by: Committee Member Edge, Daniel W.

Challenges to Gray Wolf Recovery in Washington, Oregon, and Northern California

Creator:

Kriz, Matthew A.

Abstract:

Gray wolves (Canis lupus) are the most socially polarizing species listed under the Endangered Species Act. Wildlife management practices at local, state, and federal levels include lethal control to resolve stakeholder and wolf conflicts as a last resort. There is little experimental evidence that lethal control is effective in this...

Resource Type:

Capstone Project
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
Modeling Density Dependence in the Presence of Measurement Error

Creator:

Payton, Quinn

Abstract:

Density dependence is an ecological concept concerning the mechanisms of change in the size of a population. The inability to census ecological populations confounds approaches to identify and quantify the level of density dependence. Statistical tests which ignore the presence of measurement error tend to result in misspeci fied type...

Resource Type:

Dissertation