The goal of this study is to provide a better understanding of new product adoption by single family homebuilders. Information from this study will be useful to producers of new and existing engineered wood products in targeting their market development efforts. Homebuilders are studied with the goal of segmenting them...
I conducted acoustic lure surveys of northern pygmy-owls (Glaucidium gnoma) on transects that were systematically placed in forested areas throughout the state of Oregon. My objectives were to determine if pygmy-owls were associated with particular forest types, ecoregions, or with large-diameter dominant overstory trees. I also examined temporal variation in...
The influence of large-scale processes on natural communities has become one of the central issues of modern ecology. I combined field and laboratory studies to investigate the effects of variation in coastal upwelling on rocky intertidal communities along the central Oregon coast. I examined whether the growth of intertidal barnacles...
During the U.S. military interventions in Nicaragua, the Dominican
Republic, and Haiti between 1915 and 1934, Washington equipped
members of the its armed forces with civil and political powers that
represented a radical departure from the North American military tradition.
This abandonment of tradition decisively contributed to both the
disappointments...
No studies have evaluated the effects of limited vehicle access on movements, survival and habitat use of Roosevelt
elk (Cervus elaphus roosevelti) . We installed twenty gates, restricting motorized vehicle access by the public in
seven discrete Road Management Areas (RMAs), comprising 35% of the study area. We radio-tracked 31...
Using a spectrometer and photomultiplier tube, I measured the electromagnetic radiation transmittance properties of three types of tissue-- ventral skin, cardiac muscle, and liver tissue--in the red-sided garter snake Thamnophis sirtalis parietalis between the wavelengths of 450 and 850 nanometers (nm). Control readings were taken using a 10⁻² neutral density...
This thesis examines the concepts of power and participation and how they are intertwined in the examination of the urban planning systems in Curitiba, Brazil. Power is identified as both the planning system's ability to affect the daily lives of the city's residents and the power of individuals and groups...
The optimum goal of forest management is to foster long-term productivity and ecological integrity while maintaining or increasing short-term growth and yield through sustainable practices. Understory vegetation plays a definite role in forest functions through nutrient cycling and habitat provisions. The objective of this study was to determine how salal,...
I tested the hypothesis that there is a correlation between inundation period and net primary production (NPP) in estuarine salt marshes through an observational experiment at South Slough National Estuarine Reserve, Oregon. I estimated primary production and inundation period for selected monotypic plant communities in (1) a naturally restored wetland...