A cow-calf herd of Roosevelt elk (Cervus elaphus roosevelti)
resident to Indian Creek Research Center (ICRC), Oregon was observed
June-August, 1985 and March-August, 1986. Cows at ICRC reproduced in
alternate years; cows with calves led the herd a significantly
greater number of times than cows without calves (1985, P <...
A herd of California bighorn sheep (Ovis canadensis californiana),
re-introduced to the area of Hell Creek on the Sheldon National
Wildlife Refuge in northwestern Nevada, was studied from 15 June 1978
to 20 August 1980.
Major vegetation and physiographic types were delineated and
described. Habitat preferences were determined from field...
A study conducted May 1978-December 1980 determined that the present geographic range of Columbian white-tailed deer, Odocoileus virginianus leucurus, (CWTD) in Douglas County, Oregon encompassed 1199km2. The area was predominately a Quercus woodland community, typical of the Interior Valley Zone of western Oregon. The CWTD distribution
was not contiguous throughout...
A feral pig population on Santa Catalina Island, California, was
studied for 17 months beginning in July 1980. Density was estimated
to be 21 to 34 pigs/km² (95% confidence interval) using capture-recapture
techniques. Dry season home ranges determined from
radio-telemetry data were small and differed significantly between
boars and sows....
The movements, habitat use, and activity patterns of black-tailed deer in western Oregon, and the influence of suburban housing developments on the behavior of deer in the area, were studied and described. Radio telemetry, spotlight censusing, and a resident questionnaire were used to document the behavior of deer. Radio telemetry...
Hypotheses of phylogenetic and historical zoogeographic relationships of glyptocephalines (Glyptocephalus cynoglossus, G. zachirus, G. stelleri, Microstomus kitt, H. pacificus, H. achne,
Embassichthys bathybius, and Tanakius kitaharae) were constructed based on comparative anatomy and external morphology. The phylogenetic approach was cladistic and character polarity was
determined by using out-group comparison. One...
Electrical stimulation of beef carcasses (n=18) did not cause a
significant reduction in microbial population on three different sampling
positions immediately following slaughter. In constrast, significant
microbial reduction (P > 0.05) was found at position 2 (muscle
above aitch bone), but not at position 1 (inside of neck) or position...
The distribution of adult Pacific herring (Clupea harengue
pallasi) near Auke Bay, Lynn Canal, southeastern Alaska, varied by
depth and geographic area over 24 successive months during 1973-75.
From June through September, schools concentrated at 5- to 37-m
depths where zooplankton was abundant, and moderate currents were
present in a...
About 7,000 years ago two major tephra-falls blanketed the
Pacific Northwest in volcanic ash. These two tephra-falls, identified
as the Llao and climatic tephra-falls, were a part of the eruptive
events that led up to the collapse of Mount Mazama to form Crater Lake
in the southern Oregon Cascades.
The...
Small groups are an important and widely used educational
format in adult church education. It is estimated
that ninety percent of the churches that belong to the
Conservative Baptist Association of Oregon provide some
type of small group eductional opportunity for their adult
members. The purpose of this study was...
The major purpose of this exploratory study was to
develop an explanatory model of self-esteem and to interpret
the model using the Social Exchange framework. To
this end, a main effects and an interaction model emerged
which offer promise toward understanding the components of
self-esteem. This study examined 325 individual...
Previous investigation showed that 20 mg/kg BCNU
caused inhibition of sulfobromophthalein (BSP) excretion
and inhibited bile salt independent bile flow (BSIF) in
rats by 48 h after treatment (Hoyt, 1984).
The present investigation demonstrated that BCNU
inhibited the canalicular step in the excretion of BSP.
This was indicated by the...
Tansy ragwort (Senecio iacobea) is a widely distributed weed in the Pacific Northwest (U.S.A.) where it causes severe damage to the livestock industry. Sheep are highly resistant to toxic effects of ragwort, therefore, induction of ragwort preference in sheep was sought as a means to control this poisonous plant. The...
The objective of this research was to investigate
the physiological effects of body posture on cycling.
The familiar positions of bicycle riding have been the
touring posture (hands stretched on top handlebar) and
the racing posture (hands bent at the elbow, with the
back horizontal). However, a relatively new stance...
Published March 1982. 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
Published March 1982. 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
When the ambient temperature drops, air-source heat
pumps deliver less heating per unit of power input and
usually cannot provide for the heating load. Therefore,
dual-source heat pumps can offer an attractive alternative.
In the context of this work, a dual-source heat pump
operates as an air-source unit under normal...
Population attributes, behavior, and activity patterns of
Nuttall's cottontails (Sylvilagus nuttallii) inhabiting a
juniper-sagebrush scabland community in central Oregon were studied
between June 1980 and August 1981. Cottontails were trapped, marked
for individual recognition, and released at their sites of capture.
Data collected by periodic trapping and censusing of cottontails...
Published June 1985. 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
Three varieties of sweet corn (Zea mays L.) , including
two supersweet (Crisp 'N Sweet 710 and Rogers 3376) and one
normal sweet (Jubilee), were harvested at six stages of
maturity (80-72% moisture for supersweet and 75-68% moisture
for normal sweet) at three days intervals. Changes in
physical and chemical...
This compilation of theses and dissertations (a part of the OSU Bibliographic Series) for the period 1970-1977 reflects this university's emphasis on research and graduate study. It may be viewed as an indicator of the contributions made to the state of Oregon through graduate study and research at Oregon State...
The purpose was to gain information about the determinants of student behavior with respect to laboratory (lab) and non-laboratory (non-lab) science learning activities. Fishbein and Ajzen's (1975) theory of reasoned action was used to investigate students' salient beliefs, correlations between determinants of intention, and the relative weights of determinants of...