Erosive landscapes are formed from the amalgamation of individual sediment transport over space and time. Though sediment transport is readily observable at the grain and event scales, determining how these...

Accurate sediment flux histories are critical data for deciphering the relative importance of climate and land use factors such as logging and road construction on sediment production and deposition. We use...

The Hygiene Hypothesis and Old Friends Hypothesis focus attention on the coevolutionary relationship between humans and pathogens, positing that reduced pathogen exposure in economically developed nations is...

71 pages. A thesis presented to the Department of Environmental Studies and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Arts, Fall...

Northern peatlands occupy a very small proportion of the Earth’s surface but contain nearly a third of the world’s soil organic carbon. These wetland systems produce substantial fluxes of CH4, a potent...

Tropical ecosystems are some of the most diverse and productive ecosystems on the planet. These ecosystems are also some of the most threatened worldwide and this is largely driven by agricultural expansion....

51 pages

44 pages

118 pp. Adopted 2009-02-25. Department of Land Conservation and Development Notice of Adopted Amendment

76 pp. Adopted 2008-12-02. Department of Land Conservation and Development Notice of Adopted Amendment