Index Catalog // ScholarsArchive@OSU

Creator:: Davis, Gerald E. and Larson, Gary L.
Abstract:: This study was undertaken to evaluate the usefulness of sediment records for correlating changes in the sediment characteristics of four Oregon lakes with past cultural developments of the lakes and their watersheds. The lakes chosen for this study were Waldo, Odell, and Diamond lakes located in the Cascade mountains and...
Resource Type:: Technical Report
Full Text:: Sediment Characteristics and the Trophic Status of Four Oregon Lakes

Creator:: Edmonds, Robert L., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: Research activities in the post-IBP phase of the Biome program prior to July 1975 were reported in Internal Report 162. Summaries of research and synthesis activities from July 1975 to August 1976 are presented here. The reports are arranged in the following order: Analysis of individual terrestrial ecosystems, which has...
Resource Type:: Technical Report
Full Text:: I CONIFEROUS FOREST BIOME Summary of Research and

Creator:: Bancroft, Betsy A.
Abstract:: My thesis explored the effects of and potential mediating mechanisms for an important environmental stressor, ultraviolet-B (UVB) radiation. UVB radiation has negative effects on organisms in both terrestrial and aquatic systems. I used meta-analysis to quantify the effects of UVB radiation on a diversity of aquatic organisms (Chapter 2). UVB...
Resource Type:: Dissertation
Full Text:: ), crustaceans (Hessen, 2003) and humans (van der Leun & de Gruijl, 1993). The effects of UVB radiation on

Creator:: Hart, Stephanie K.
Abstract:: Riparian zone vegetation can influence terrestrial and aquatic food webs through variations in the amounts, timing, and nutritional content of leaf and other litter inputs. Differences in vegetation composition and density, as well as riparian topography, may modulate the strength and quality of these inputs. Changes in inputs to small...
Resource Type:: Masters Thesis
Full Text:: Master document AN ABSTRACT OF THE THESIS OF

Creator:: Meyerhoff, Richard Dietrich
Abstract:: The eruption of Mt. St. Helens provided the opportunity to study secondary production of grazing insects in the context of disturbance. Two stream sites were chosen that significantly differed in how their watersheds were impacted by the eruption. Clearwater Creek was catastrophically disturbed (physical alteration of habitat, loss of riparian...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Richard Dietrich Meyerhoff

Creator:: Hebard, James Frank
Abstract:: Fifty-two one-meter plankton net samples from four stations off Newport, Oregon, were examined for composition and abundance of euphausiids and copepods. They provided data on dominance, species associations and environmental relationships. The euphausiid-copepod population off Oregon is composed of 12 numerically dominant species. These species occurred in most of the...
Resource Type:: Dissertation
Full Text:: to increase in abundance in February 1964 and de- veloped peaks of abundance between March and July

Creator:: Coles, Derron Rafiq
Abstract:: This research examines the downstream fining phenomenon as it operates in coastal gravel-bed rivers of Oregon. Downstream fining is a change in bed composition toward smaller sediment sizes in the downstream direction. Changes in stream flow discharge and channel slope affect the rate of bed-load transport, thereby altering the downstream...
Resource Type:: Dissertation
Full Text:: Coles dissertation_fini_june29 AN ABSTRACT OF THE

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