The purpose of this investigation was to determine if pinniped feeding patterns have significant negative impacts on depressed salmonid stocks. Knowledge about prey selection by pinnipeds is key to assessing their potential impact on salmonid stocks. The four major work elements reported are: 1) the reanalysis of Columbia River area...
The Independent Multidisciplinary Science Team (IMST) was directed to evaluate the extent of predatory impacts of marine mammals and seabirds on salmonids and to recommend actions to mitigate impacts. IMST focused on the Oregon Department of Fisheries and Wildlife Action Plans because they provide the programmatic direction for the State...
Recent reports using data from the 2013-2015 Current Population Surveys reveal that while the overall food insecurity rate in Oregon is 16.1%, single mothers in Oregon experience food insecurity rates as high as 44.1%. This study will portray how household assets and capital relate to food insecurity for single mothers...
Interrelationships among attitudes toward and practice
of nutrition and health were determined from results of
335 responses to a survey mailed to members of a prepaid
health plan in Portland, Oregon, in the Spring of 1981.
The scales used to test attitudes included Subjective
Index of General Well-Being, Health Locus...
The omnivorous ground beetle, Pterostichus melanarius Illager (Coleoptera: Carabidae), is a ubiquitous inhabitant of western Oregon crop land. Because it is often the most abundant ground beetle, and attains densities that could lead to serious impacts on its prey sources, I sought to understand the overall diet composition, and specifically...
Calanoid copepod diet was investigated in Oregon coastal waters to determine
the trophic significance of phagotrophic protists as copepod prey within an ecosystem
where the microplankton biomass is typically dominated by large diatoms. Prior to and
during the 1991 upwelling season, clearance rates on phytoplankton and phagotrophic
ciliates were measured...