The objective of this dissertation is to examine federally administered soil conservation policy within the United States and the broadly defined Columbia River Basin in the US Northwest. I accomplish this in five chapters. In the first chapter I provide background information for the study. In the second chapter I...
Stable isotopes can be a valuable tool for tracing the redistribution, storage, and evaporation of water associated with canopy
interception of rainfall. Isotopic differences between throughfall and rainfall have been attributed to three mechanisms:
evaporative fractionation, isotopic exchange with ambient vapor, and temporal redistribution. We demonstrate the potential
importance of...
Neutral genetic markers are routinely used to define distinct units within species that warrant discrete management. Human-induced changes to gene flow however may reduce the power of such an approach. We tested the efficiency of adaptive versus neutral genetic markers in differentiating temporally divergent migratory runs of Chinook salmon (Oncorhynchus...
Poet John Haines is best known for his first book of
poetry, Winter News, which was published in 1966. The book
contains poems about the Alaskan landscape that surrounded
Haines during his many years of living in Richardson,
Alaska. The recurring motifs in his poems include hunting,
trapping, the Arctic...
We consider long planetary waves of annual period linearized about a steady, wind-driven subtropical (ST) gyre circulation. The circulation divides the gyre into an eastern zone (EZ) where only the surface layer is in steady motion and a western zone (WZ) where both the surface and the middle layer are...
Oral administration is the most practical way of vaccination of fish. It has advantages over intraperitoneal injection and immersion methods that include no stressful handling, no interference with routine fish husbandry and antigens can be delivered to the fish in their feed.
An oral antigen delivery system was developed for...