Index Catalog // ScholarsArchive@OSU

The response of Oregon shelf waters to wind fluctuations : differences and the transition between winter and summer

Creator:: Sobey, Edwin J. C., 1948-
Abstract:: The physical characteristics of continental shelf waters off Oregon during late winter and spring of 1975 are described and compared with observations taken previously during summer. The currents in winter are barotropic in the monthly means while in summer the currents are baroclinic. Alongshore current fluctuations on the time scale...
Resource Type:: Dissertation
Full Text:: app roved: Robert L. Smith The physical characteristics of continental shelf waters off Oregon

Environmental variables as predictors of fish assemblages in the Tillamook Basin, Oregon

Creator:: Rose, Cathleen E.
Abstract:: The Tillamook and Kilchis subbasins of the Tillamook Bay watershed (Oregon Coast Range) have differences in geology and land use history and, therefore, varied environmental conditions that could affect fish assemblages. Fifty-two randomly selected wadeable stream reaches in these two subbasins were surveyed for stream habitat and fish assemblage composition...
Resource Type:: Masters Thesis
Full Text:: : Environmental Variables as Predictors of Fish Assemblages in the Tillamook Basin, Oregon. M. Jesse Ford The

Early succession in beds of the red alga, Iridaea cornucopiae Post. & Rupr. (Gigartinaceae) : alternate pathways

Creator:: Olson, Annette M.
Abstract:: Multiple successional sequences have been observed following disturbance in communities on marine hard substrata. Observations of the turf-forming alga, Iridaea cornucopiae Post. & Rupr. (Gigartinaceae), suggest that I. cornucopiae may assume its dominance by its ability to vegetatively pre-empt space. High limpet densities in the natural community, suggest that I....
Resource Type:: Masters Thesis
Full Text:: cornucopiae Post. & Rupr. (Gigartinaceae) : alternate pathways AN ABSTRACT OF THE THESIS OF Annette M

Succession and stability in two rocky intertidal communities on the central Oregon coast

Creator:: Farrell, Terence M.
Abstract:: The stability of a limpet-dominated community was assessed in a experiment in which an consumer was temporarily removed. Compared to unmanipulated plots, the limpet-exclusion plots developed greater algal abundance and altered species composition of both algae and barnacles. The community was not perturbed beyond its capacity to recover, since the...
Resource Type:: Dissertation
Full Text:: communities on the central Oregon coast AN ABSTRACT OF THE THESIS OF Terence M. Farrell for the degree of

Assessment of ground water recharge and quality under agricultural production in Lane County, Oregon

Creator:: Shelby, Patrick M.
Abstract:: Assessment of the environmental impacts of an agricultural production system requires information on both soil water quality and solute flux. Passive Capillary Samplers (PCAPS), which sample water from the vadose zone using fiber glass wicks, have shown potential to provide both flux and solute concentration in unsaturated zone sampling but...
Resource Type:: Masters Thesis
Full Text:: agricultural production in Lane County, Oregon AN ABSTRACT OF THE THESIS OF Patrick M. Shelby for the degree

Diagnostic tools for overdispersion in generalized linear models

Creator:: Ganio-Gibbons, Lisa M.
Abstract:: Data in the form of counts or proportions often exhibit more variability than that predicted by a Poisson or binomial distribution. Many different models have been proposed to account for extra-Poisson or extra-binomial variation. A simple model includes a single heterogeneity factor (dispersion parameter) in the variance. Other models that...
Resource Type:: Dissertation
Full Text:: models AN ABSTRACT FOR THE THESIS OF Lisa M. Ganio-Gibbons for the degree of Doctor of Philosophy in

Selecting donor inbred lines for enhancing the performance of single-cross hybrids from key heterotic groups of oilseed sunflower (Helianthus annuus L.)

Creator:: Cheres, Mercy Tuiya
Resource Type:: Dissertation
Full Text:: Thielges, Patrick M. Hayes, Charles D. Boyer, W. Thomas Adams, and Fred Ramsey for serving in my graduate

Effects of jet aircraft overflights and other potential disturbances on behavioral responses and productivity of nesting peregrine falcons

Creator:: Nordmeyer, Dana L.
Abstract:: In order to examine the potential impact of military jet overflights and other disturbances on productivity of peregrine falcons (Falco peregrinus), we observed behavioral reactions of peregrines to disturbances at nests along the Tanana River, Alaska during the 1995-1997 breeding seasons. Military jets conducted low-altitude flights over a sample of...
Resource Type:: Masters Thesis
Full Text:: course of the study. A total of 401 close (defined as < 1000 m slant distance from the nest

Delineating pattern and process in tropical lowland : mealy parrot migration dynamics as a guide for regional conservation planning

Creator:: Bjork, Robin D.
Abstract:: Most reserves fail to capture the habitat heterogeneity necessary to maintain viable populations of wide-ranging species. Methods to determine defensible dimensions of reserves and reserve networks are needed. The primary goal of this study was to develop such methods for lowland tropical forests by examining habitat- and spatial-use patterns of...
Resource Type:: Dissertation
Full Text:: . Over distances of a few hundred kilometers and a range in elevation of ~200 m, variation in fruiting

Bird and rodent nesting in excavated cavities in Pinon-juniper woodland, southeastern Colorado

Creator:: Youkey, Donald E.
Abstract:: I studied bird and rodent nesting in woodpecker-excavated cavities in pifion-juniper (Pinus edulis-Juniperus monosperma) (P-J) woodland in southeastern Colorado during the spring and summer of 1987 and 1988. Two related investigations were conducted: one described characteristics of habitat used by birds and rodents nesting in woodpecker-excavated cavities and the other...
Resource Type:: Masters Thesis
Full Text:: breaks, 1640 to 1770 m in elevation, bordered by short-grass prairie (U.S. Dep. Army 1980). In this

ScholarsArchive@OSU

The response of Oregon shelf waters to wind fluctuations : differences and the transition between winter and summer

Environmental variables as predictors of fish assemblages in the Tillamook Basin, Oregon

Early succession in beds of the red alga, Iridaea cornucopiae Post. & Rupr. (Gigartinaceae) : alternate pathways

Succession and stability in two rocky intertidal communities on the central Oregon coast

Assessment of ground water recharge and quality under agricultural production in Lane County, Oregon

Diagnostic tools for overdispersion in generalized linear models

Selecting donor inbred lines for enhancing the performance of single-cross hybrids from key heterotic groups of oilseed sunflower (Helianthus annuus L.)

Effects of jet aircraft overflights and other potential disturbances on behavioral responses and productivity of nesting peregrine falcons

Delineating pattern and process in tropical lowland : mealy parrot migration dynamics as a guide for regional conservation planning

Bird and rodent nesting in excavated cavities in Pinon-juniper woodland, southeastern Colorado

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