Index Catalog // ScholarsArchive@OSU

Carbohydrate and Nitrogen Metabolism of Sphaerotilus Natans

Creator:: Robertson, James Melvin
Resource Type:: Dissertation

Ecology of benthic microalgae of estuarine intertidal sediments

Creator:: Riznyk, Raymond Zenon
Abstract:: The benthic microalgae of sediments of the two tidal flats in Yaquina Bay, Oregon were investigated to determine the environmental factors limiting the abundance and the horizontal and vertical distribution of these organisms. The Southbeach tidal flat which is under the marine realm of deposition consists of fine to medium...
Resource Type:: Dissertation
Full Text:: Ecology of benthic microalgae of estuarine intertidal

The ecology of insects associated with waste water lagoons

Creator:: Sturgess, Brian Thomas
Abstract:: The purpose of this study was to determine what insect species occurred in waste water facilities at Corvallis, Oregon, and to correlate these species with the chemical, physical, and biological features common to these facilities. Data collected on a routine basis included dissolved oxygen, temperature, algal density, and insect population...
Resource Type:: Masters Thesis
Full Text:: Title The Ecology of Insects Associated with Waste Water Lagoons Abstract approved The purpose of this

Effect of Endothal and certain other selective herbicides on microbial activity in six different soils

Creator:: Au, Frederick Hung Fo
Abstract:: The effect of Endothal (3, 6-endoxyhexahydrophthalic acid), sodium pentachlorophenate (Na-PCP) and TD-47 (di-N, N-dimethylcocoamine salt of Endothal) on the microbial populations, ammonification, nitrification and respiration in six different soils was investigated. It was found that Endothal at 20 and 200 ppm had no adverse effect on the microbial population, ammonification,...
Resource Type:: Dissertation
Full Text:: on microbial activity in six different soils AN ABSTRACT OF THE THESIS OF Frederick Hung Fo Au

Influence of slash burning on microbial population and activities in a Douglas-fir forest soil

Creator:: Neal, John Lloyd
Resource Type:: Masters Thesis
Full Text:: Influence of slash burning on microbial population and

Snowbrush, Ceanothus velutinus Dougl., its ecology and role in forest regeneration in the Oregon Cascades

Creator:: Zavitkovski, J.
Abstract:: The ecological and silvicultural importance of snowbrush, Ceanothus velutinus, in the areas west of the summit of the Oregon Cascades was studied. Particular attention has been given its nitrogen- fixing ability under both field and greenhouse conditions. On west slopes of the Oregon Cascades snowbrush occurs above 2, 500 feet...
Resource Type:: Dissertation
Full Text:: Title SNOWBRUSH, CEANOTHUS VELUTINUS DOtJGL., ITS ECOLOGY AND ROLE IN FOREST REGENERATION IN THE

Physiological ecology and structure of benthic communities in a woodland stream

Creator:: Reese, Weldon Harold
Abstract:: This thesis reports a portion of a general ecological study of a stream under conditions of controlled flow and low levels of organic enrichment. It is concerned with the effects of experimental variations of light intensity and concentration of soluble organic enrichment imposed on seasonal variations of temperature and total...
Resource Type:: Dissertation
Full Text:: Physiological ecology and structure of benthic communities

Ecology of bitterbrush (Purshia tridentata (Pursh) DC) in the Silver Lake Deer Winter Range, Oregon

Creator:: Segura-Bustamante, Mariano
Resource Type:: Dissertation
Full Text:: (Name) Ph, D, (Degree)inme presented on July 28, 1969 (Major) (Date) Title: ECOLOGY OF BITTERBRUSH

Influence of interplanted and pure stands of red alder (Alnus rubra Bong.) on microbial and chemical characteristics of a coastal forest soil in the Douglas-fir region

Creator:: Chen, Chi-sin
Abstract:: Chemical and microbial analyses were made at four seasonal intervals on soil horizons under red alder, conifers, and mixed alder-conifers at the Cascade Head Experimental Forest, established in 1937 by the U. S. Forest Service near Otis, Oregon. Microbial analyses showed that although plate counts of molds and bacteria fluctuated...
Resource Type:: Dissertation
Full Text:: STANDS OF RED ALDER (ALNUS RUBRA BONG.) ON MICROBIAL AND CHEMICAL CHARACTERISTICS OF A COASTAL FOREST

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

Creator:: Turner, Robert Bruce
Abstract:: Studies were conducted from 1962 to 1966 to investigate the effectiveness of several practices in manipulating medusahead (Taeniatherum asperum (Sim. ) Nevski) infested and/or dominated ecosystems by releasing competition in favor of perennial grasses. Several herbicide treatments were evaluated for selective control of medusahead and cheatgrass (Bromus tectorum L. )...
Resource Type:: Dissertation

ScholarsArchive@OSU

Carbohydrate and Nitrogen Metabolism of Sphaerotilus Natans

Ecology of benthic microalgae of estuarine intertidal sediments

The ecology of insects associated with waste water lagoons

Effect of Endothal and certain other selective herbicides on microbial activity in six different soils

Influence of slash burning on microbial population and activities in a Douglas-fir forest soil

Snowbrush, Ceanothus velutinus Dougl., its ecology and role in forest regeneration in the Oregon Cascades

Physiological ecology and structure of benthic communities in a woodland stream

Ecology of bitterbrush (Purshia tridentata (Pursh) DC) in the Silver Lake Deer Winter Range, Oregon

Influence of interplanted and pure stands of red alder (Alnus rubra Bong.) on microbial and chemical characteristics of a coastal forest soil in the Douglas-fir region

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search