Low intertidal communities of Oregon and Panama have many predator
and herbivore species. This diversity of consumers is important to the
organization of both communities because of qualitative differences
among the consumer species in their ability to circumvent specific prey
defenses. In Oregon, the red alga Iridaea cordata is protected...
Calow (1983) realized that differences between parasites and their free-living
relatives can be explained by the differences in nutrient richness. I
propose a model that is based on Calow's idea which identifies the relative
position of different trophic strategies (e.g. predation, grazing, parasitism and
others) based on (1) the differences...
Aggregation and species association of 9 species of phytophagous and
predaceous mites were studied for 6 yr in an orchard with 100, 2 m tall 'Red
Delicious' apple trees. To quantify aggregation, a method was developed that is
powerful, and easily interpreted. It relates the proportion of habitat occupied to...
This research focuses on events surrounding the activities of Battery
Freeman, a coastal defense facility constructed within the earthworks of "old" Fort
Stevens near Astoria, OR, in 1900 and destroyed in 1939. Archival data are used
in conjunction with nearly 5,000 artifacts that were recovered from archaeological
excavations in 1989...
The purpose of this study was to provide understanding of Oregon Workforce Quality Council contributions to the development of a world-class workforce. Research goals were
to describe Council processes and outcomes, as well as barriers to the achievement of Council purposes. A case-study approach was selected for the research design....