The vegetation surrounding a nest shades and insulates the incubating
bird in addition to concealing it. The vegetative material
that makes up a nest insulates the eggs from its warmer or cooler
surroundings. Since a Killdeer builds a stone-lined nest on barren
ground, both egg and adult are subject to...
This paper describes the analysis of data from a three-year gross time study of skyline, balloon, and helicopter yarding systems operating in Western Oregon. Data collection activities were designed and supervised by the Pacific Northwest Forest and Range Experiment Station, U.S.D.A. Forest Service. The specific logging systems studied were running...
This paper describes the analysis of data from a three-year gross time study of skyline, balloon, and helicopter yarding systems operating in Western Oregon. Data collection activities were designed and supervised by the Pacific Northwest Forest and Range Experiment Station, U.S.D.A. Forest Service. The specific logging systems studied were running...
Although some of the most difficult problems in forest management occur as a result of timber harvest operations, present methodology in harvest planning emphasizes guidelines which rely heavily upon the experience of the individual forest manager for their correct application. This study was undertaken in an effort to develop a...
A cooperative study sponsored by a grant from the Water Resources Research Institute Project No. A-001-ORE, Hydrology of Water Yield Prediction, and funding from the School of Forestry, both of Oregon State University.
Dietary fiber has been suggested as interfering with
mineral utilization. The influence of broccoli florets and
wastes, cauliflower heads and wastes, wheat bran and Metamucil
on mineral uptake by the rat was determined using
balance studies. All results were compared to control
animals fed diets containing 10% hydrolyzed cellulose.
Utilization...
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 responses of 'Oregon 1604' snap beans (Phaseolus vulgaris
L.), 'Early Thorogreen' lima beans (Phaseolus lunatus L.), and
'Takii's Extra Early' soybeans (Glycine max L.) to two methods of
inoculation with rhizobium (seedcoating and furrow treatments) and
rates of nitrogen fertilizer were studied in field experiments.
Nitrogen rates ranged from...