Total length and biomass of fungal mycelium in the soil of a young Douglas-fir stand in the central Oregon Coast Range were estimated over 27 months with the agar-film technique. In a second study, phenology and taxonomy of hypogeous (belowground) sporocarps were studied over 32 months in a nearby, young...
Three levels of dietary crude protein (8.6, 11.4, and 17.2) were
fed to 24 pony mares to determine the effects on the estrous cycle,
conception rate, and serum progesterone concentrations. Mares were allotted into three treatment groups designated as low protein (LP),
medium protein (MP), and high protein (HP). Following...
The purpose of this research was to evaluate the
effectiveness of two smoking cessation programs -- one
group and one self-help -- which were developed and are
currently employed by the American Cancer Society.
The research was conducted in a work setting, and
all subjects were employees of the State...
In an effort to describe the plant communities and
succession of the Oregon coastal grasslands, vegetation
and environmental data were collected from 75 stands at
24 separate locations ranging from Cape Falcon in Tillamook
County to Cape Ferrelo in Curry County. The vegetation
data consisted of cover and frequency values...
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...
A glaze storm of exceptional severity was seen in the Corvallis
area, January, 1942. The weight of ice that accumulated in the
crowns of young-growth Douglas-fir trees caused widespread top
breakage in many stands lying in the broad path of this storm.
Early research on this phenomenon showed the majority...
Loss of early instar Douglas-fir tussock moth (Orgyia pseudotsugata McDunnough) (DFTM) has been found to constitute 66-92% of intra-generation mortality and to be a key factor in inter-generation population change. This death has been attributed to dispersal and to arthropod predation, two factors previously judged more important to an endemic...
The purpose of this study was to examine the relationship
between two different methods of measuring beliefs about drug-taking
compliance and the behavior of drug-taking compliance, and to
compare the predictive ability of the two methods of measuring
beliefs about drug-taking compliance. The belief examined was
perceived seriousness, a health...