Soil bulk density and disturbance were measured before and after a commercial
thinning of 3 0-50 year-old Douglas-fir using a cut-to-length (CTL) and a skyline system
on the Willamette National Forest in the Oregon Cascades. A dual-probe nuclear
densimeter was used to measure bulk density at four and eight inches....
For centuries humans have been searching for precious metals. The search for gold has greatly changed the landscape of the American West, beginning in the 1850s and continuing today. Various gold rushes around the country created mining colonies in remote areas, thereby connecting the frontier with the rest of America...
The recent recovery of Dalma Ware at the archaeological site of Surezha, Northern Mesopotamia (modern-day Iraqi-Kurdistan), has raised questions regarding the method of its arrival in the region (Stein 2017; Stein & Fisher 2018). In order to assess Dalma Ware’s potential modes of dispersal into Northern Mesopotamia, ceramic petrography and...
Although the timber industry was the major economic force in the lives of several generations of Oregon families, very little archaeological investigation has been done on the dozens of abandoned logging camps that are scattered throughout the forests of the Pacific Northwest. This project focuses on Camp 1, a 1920s...
Part I: Racemic and asymmetric syntheses of a new substance with prospective antidepressant properties were achieved. In vitro assays with synthetic racemates (±)-25 and (±)-26 suggested that the former is a relatively selective inhibitor of serotonin transporter whereas the latter is a more balanced inhibitor of both serotonin and norepinephrine...
To remain competitive, the forest products industry needs to look for new and innovative processes and technologies to not only reduce costs but also to recover more value through the entire seedling-to-customer forest products supply chain. It is well recognized that measuring wood properties of logs in real time during...
Methane is a product of biogeochemical processes which respond to changes in climate. The history of atmospheric methane is recorded by ice cores providing insight into past changes in these biogeochemical processes. This dissertation is comprised of three studies which focus on centennial- and millenial-scale variability of methane from ice...
Soils and other resource programs in both public land management agencies and private industry are continually being adapted to the challenges of evolving knowledge and experience in the field of forestry. This dissertation explores new ways of thinking about and using soils information in forest planning and management, with a...
Introduced vector-borne diseases, particularly avian malaria (Plasmodium relictum) and avian pox
virus (Avipoxvirus spp.), continue to play significant roles in the decline and extinction of native forest birds in
the Hawaiian Islands. Hawaiian honeycreepers are particularly susceptible to avian malaria and have survived
into this century largely because of persistence...