Agonistic behavior among three species of Microtus live-trapped
near Corvallis, Oregon was recorded in order to interpret habitat
segregation by the species in areas of syrnpatry. The method used to
measure agonistic interaction was similar to that of Colvin (1970).
Agonistic behavior was recorded under red light in a neutral...
The need to control irreversible conversions of
prime agricultural lands to urban land uses has come to light
in recent years. Resulting policy statements by the State of
Oregon and federal agencies have added support to this
premise. Nevertheless, inefficient conversions of agricultural
to idle lands in response to urban...
Despite a relative decline in the size of Oregon's
sheep industry, the problem of sheep depredation remains
a serious economic and environmental dilemma in need of
objective examination and innovative solutions. An investigative
report on the problem as it occurs in Benton County
can contribute to the information required to...
Beef cattle ranches provide a substantial portion of income in
Oregon. Range beef cattle ranches are located on land having relatively
low productivity and value. The ranches of interest for this study were
among the largest and most extensive in the state.
The purpose of the study was to examine...
A method for analyzing growth of an urban area is
developed. Albany, Oregon, from 1936 to 1975 was used as a test
case. The method employs the use of remotely sense imagery
combined with an analysis of selected physical characteristics
of the land being urbanized. The study consists of an...
The value per-acre and annual amortization of
rural land varies dynamically by parcel size. There are
several adjustment factors or independent variables
spatial, productive and development potential which affect
the market value of all rural land. The evaluation of
these must be accomplished by parcel size to be realistically
equated....
The utilization of pre-existing military
structures and facilities to serve as a resource base for
an incorporated city is a unique situation posing several
problems for the new city of Adair Village. The resultant
land uses from the disposal of Adair AFS provide little
economic opportunities so the residents are...
The spatial organization of farm units in Polk and Linn counties
in the mid-Willamette Valley has undergone significant change over
the past 30 years. Whereas most study areas operations in the
1930's and 1940's consisted of small family owned farms with contiguous
land bases, present mid-Willamette Valley units vary considerably...
Marion County had a 1976 cash receipt from all farm products
amounting to $110,429,000. Much of this farm value was produced on the
county's 410,350 acres of class I through IV soils. These soils, regardless
of productivity, also have potential for a variety of other
non-farm uses. It is this...
