The structure of two oak woodland types in the Santa Rosa region
of the Santa Ana Mountains of southern California has been described
by Zuill (1967). One type called the grass oak woodland (GOW) is
composed mainly of Q. engelmannii on hills and slopes. The other
type called the dense...
In 1970 a phytosociological reconnaissance consisting of 135 plots in the Subalpine Meadow Zone was made. These samples were sorted using an association table and several Alpine Zone and very early seral communities were set aside, An additional hundred plots taken by M. J. Hamann were
incorporated with these and...
Setaria lutescens (yellow foxtail) plants, grown from five seed
sources were compared in California. Seed sources were: Connecticut,
Iowa, Massachusetts, Pennsylvania and California. Morphological
and physiological differences between biotypes include: plant
size, growth habit, time required to mature and reproductive capa
city. Most significant is the prostrate habit of the...
During the summers of 1971, 1972, and 1973, a general
floristic ecological survey of the naturally-occurring vegetation
of the Bear River Migratory Bird Refuge in Utah was
carried out. Ten community types were identified and
characterized. These included two aquatic communities, the
Potamogeton pectinatus (Pope) and the Ruppia maritima/
Zannichellia...
Ecological factors associated with the relictual distribution of
the endemic shrub Kalmiopsis leachiana (Ericaceae) were investigated.
A prostrate evergreen species with small coriaceous leaves,
K. leachiana is restricted to two disjunct populations in the Siskiyou
Mountains and southern Cascade Mountains of southwestern Oregon,
USA. Exact distributions of individual populations were...
The vegetative communities in the subalpine meadows of Hunts
Cove, Mt. Jefferson, and some of the major environmental factors
affecting them were studied in the summer of 1971. Hunts Cove is in
the subalpine Tsuga mertensiana parkland of the Central Oregon High
Cascades. Habitats within the Cove vary considerably; elevation...
The purpose of this study was to develope a plant community classification
within the Siskiyou mountains, a small range within the Klamath
geological province well known for its geologic and floristic diversity.
Forest land managers have expressed the need for identification of
basic Land classes that will aid in the...
The purpose of this study was to determine plant species composition, community structure, successional relationships, vegetational development and plant distributions in estuarine salt marshes on the Pacific Coast of Oregon.
Quadrat and transect samples of plant presence and cover, collected from April 1971 - June 1974, were subjected to phytosociological...
The northern Oregon coast suffers extensive loss of land as a result of landslides which constitute the primary mechanism of coastline recession. Both real property and structures along the coast have been destroyed and this destruction will continue. In certain instances, it may be feasible to protect property by engineered...
Acquisition of divergent-productive thinking skills by using
elementary science materials constitutes the basic idea of this experiment.
The data collected was used to determine statistically if
the materials had a significant role in inducing such skills.
The Ss were fifth-grade students obtained from two public elementary
schools in Oregon. Those...
A complete taxonomic review of the Family Eviphididae was
made for the first time. The family was found to contain forty-nine
species and five genera. The genera included were: Eviphis
Berlese, Scarabaspis Womersley, Alliphis Halbert, Pelethiphis
Berlese, and Thinoseius Halbert.
The new species described were: Eviphis oregonensis from
Deschutes County,...
This thesis presents an economic analysis for a proposed toll
road which is to separate different types of traffic such as pedestrians,
slow speed vehicles and high speed motor vehicles, and to
divert through traffic from the local roads. The use of a toll road
usually provides significant savings in...
The thesis area includes 54 square miles of the southeastern
Cuddy Mountains in west-central Idaho. The oldest rocks within the
area are plutonic phases of the Jurassic Cuddy Mountain complex.
These and Cretaceous (?) intrusive and associated (?) extrusive rocks
and nearby Triassic to Early Jurassic metasedimentary and metavolcanic
rocks...
Concentrated culture supernatants from strains of Vibrio
parahaemolyticus of gastroenteric origin, "suspected" V. parahaemolyticus
isolated from cases of skin infection, nonpathogenic marine
Vibrio, V. anguillarum and V. alginolyticus, were submitted to flat
gel electrophoresis, followed by the examination of the polyacrylamide
gels for total protein and enzyme patterns.
Variations related...
Predetermining the ultimate capacity of piles driven into purely
cohesive soils and purely cohesionless soils involves, respectively,
the consideration of soil shear strength in a completely undrained and
a completely drained condition. For the intermediate cases concerning
soils that possess both cohesion and internal friction (silts, clayey
silts, sandy clays,...
An integrating nephelometer was set up at the Eugene Airport
which is located five miles north of Eugene, Oregon, on Highway
99 West. Continuous atmospheric scattering coefficient readings
were obtained from July 1, 1969, to August 28, 1969. These data
are converted to meteorological range through the use of the...
Vacuum ultraviolet absorption spectra of 13 model sugar compounds
were measured in the energy range of 50 to 80 kK. The model
sugars included three simple alcohols, four simple ethers, four cyclic
alcohol-ether compounds, and two dioxanes. All spectra show
transition bands in the energy region 50 to 65 kK....