The National Oceanic and Atmospheric Administration (NOAA) Coastal Change Analysis Program (C-CAP) is developing a nationally standardized database on landcover and habitat change in the coastal regions of the United States. The Willapa Bay eelgrass mapping project was granted to the Columbia River Estuary Study Task force (CREST) of Astoria,...
Composition and structure of Oregon ash
(Fraxinus latifolia) woodlands in the William L. Finley
National Wildlife Refuge, Oregon are described. Twenty
stands dominated by Fraxinus latifolia were sampled with
500 m2 circular macroplots in which floristic microplot
data were collected for plant community synthesis. Plant
communities were identified by computer-assisted...
The focus of this study was to examine and record
the physical changes brought about by the breaching of the
Siltcoos Foredune. The origin of the dunes and the physical
processes that operate there must be considered before
effects due to the breach can be studied. A series of field...
The Holdridge model of ecological classification is applied to the state of Oregon resulting in a life zone map. Vegetation maps are employed to evaluate the units defined by the model. The life zone map collates with vegetation maps and the patterns appear quite rational.
It has been hypothesized that horizontal gene/chromosome transfer and parasexual recombination following hyphal fusion between different strains may contribute to the emergence of wide genetic variability in plant pathogenic and other fungi. However, the significance of vegetative (heterokaryon) incompatibility responses, which commonly result in cell death, in preventing these processes...
The famous geneticist and co-founder of the modern theory of evolution, Theodosius Dobzhansky, published an article in this journal in 1973 with the title "Nothing in Biology Makes Sense Except in the Light of Evolution" (Dobzhansky, 1973). In that article he responded to religious attacks on the theory and defended...
The Upper Kiamath Valley and Klamath Marsh areas of
south-central Oregon comprise the summer range for a modern
system of transhumance agriculture. Approximately 72,000
head of cattle are annually trucked from these relatively
small Kiamath pastures to winter pastures scattered throughout
the Sacramento Valley. Field research indicates that
the development...
For many years, psychologists have studied
the principles of psychophysics. Recently, cartographers
have been considering psychophysical theory in
color attribute analysis to aid in the design of maps.
An experiment was conducted using the partitioning
method by which the Munsell value scale was determined
to find (R,G,B) coordinates giving equally...
Revised September 1990. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The practice of river and stream restoration has
increased with heightened environmental concerns and
awareness. Many of these projects use structural
modifications in an attempt to mimic natural landscapes.
These structural modifications represent an active approach
to river and stream restoration. Active restoration
projects are well funded and extensively constructed....