Signal crayfish Pacifastacus leniusculus were studied in Lake Billy
Chinook, Oregon, during 1994 and 1995. Because little was known about the
crayfish population, this study was conducted to obtain reliable estimates of life
history and population parameters, document historic commercial harvests, and
make management recommendations. Crayfish were captured with baited...
Fire suppression has increased fuel loads and fuel continuity in mixed-conifer ecosystems, resulting in forest structures
that are vulnerable to catastrophic fire. This paper models fire behaviour in a mixed-conifer forest and investigates how
silvicultural and fuels treatments affect potential fire behaviour. The computer program FARSITE was used to spatially...
Phytophthora ramorum, a plant pathogen, is the cause of sudden oak death and ramorum blight and shoot die-back. It has a wide host range including many native forest species and common nursery plants. The lack of knowledge regarding infection biology of P. ramorum limits our understanding of its ecology and...
Agroforestry is a traditional farming practice in American Samoa that has helped to sustain the livelihood of the native population for centuries. These once self-sufficient islands have become economically dependent on U.S monies and other external resources during the past century. Dependency has caused a shift in the carrying capacity...
The use of advanced concepts can make the nuclear fuel
cycle more efficient by allowing pins to be operated at
high powers and to higher burnups. Among the more
promising concepts in advanced fuels is sphere pac fuel.
In a first attempt to bring together models describing
individual phenomena, the...
Alzheimer's disease, a chronic and irreversible form of
dementia, has been recognized as one of the most critical
medical-social-economic problems facing our country. As
Alzheimer's disease and other related dementias progress,
the patient becomes increasingly dependent upon family and
natural support systems to provide care. This dependency
can place the...
In 1979, the Geographic Applications Laboratory
of the Department of Geography, Oregon State University,
was retained by the Portland General Electric Company to
form and supervise a program to monitor the bioenvironment
in the vicinity of the Boardman Coal-Fired Power plant. This
partially fulfills requirements of the Department of Energy...
