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Filtering by: Creator Makarova, Kira S. Remove constraint Creator: Makarova, Kira S. Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

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  • Runoff and Sediment Transport from Harvested Hillslopes to Riparian Buffers of Rocky Mountain Headwater Catchment

    Creator:
    Puntenney-Desmond, Kira C.
    Abstract:
    Shallow subsurface flow and surface runoff are spatially and temporally variable in forested environments. The location and timing of this runoff depends on both site characteristics (e.g., vegetation, soil texture, geology, and topography) and on time-varying conditions (e.g., soil water content, precipitation type, duration, magnitude, and intensity). Forest management activities...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Kira Puntenney-Desmond

  • The effects of intraspecific plant competition and insect herbivory of ragwort (Senecio jacobaea) populations

    Creator:
    Fitzpatrick, Greg S.
    Abstract:
    I conducted field studies to determine the effect of insect herbivory and intraspecific plant competition on ragwort Senecio jacobaea. The objectives were to determine the patterns and causes in the distribution of the ragwort flea beetle Longitarsus jacobaeae foraging among varying densities of ragwort, to measure the behavioral and numerical...
    Resource Type:
    Masters Thesis
    Full Text:
    herbivory of ragwort (Senecio jacobaea) populations AN ABSTRACT OF THE THESIS OF Greg S. Fitzpatrick for

  • Modeling Large Wood Impacts on Stream Hydrodynamics and Juvenile Salmon Habitat

    Creator:
    Bair, Russell
    Abstract:
    Large wood (LW) pieces are recognized as an important habitat component for salmon freshwater habitat. As such, they are often used in stream habitat restoration practices despite a lack of knowledge about their impacts on spatial and temporal hydraulic characteristics relevant to fish habitat. In this thesis we present results...
    Resource Type:
    Masters Thesis
    Full Text:
    (Qbf) discharge between 2.2 and 8.7 m 3 /s and bankfull widths varying from 5.5 to 10.6 m. Survivable

  • Sediment transport modeling and implications for benthic primary producers in Oak Creek, OR

    Creator:
    Katz, Scott B.
    Abstract:
    The spatial and temporal variability of sediment transport processes in Oak Creek, OR was investigated and used to explore two study questions: 1) How do sediment transport processes influence benthic algal communities?, and 2) Can fluvial-hydraulic models make accurate predictions of bed load transport rates? Our study was conducted in...
    Resource Type:
    Masters Thesis
    Full Text:
    flow events ranging from 0.64-3.4 m3/s using modeled shear stress (τ) from a field calibrated, high

  • Crown structure, stand dynamics, and production ecology of two species mixtures in the central Oregon Cascades

    Creator:
    Garber, Sean M.
    Abstract:
    Knowledge of stand structure, stand dynamics, and production ecology of species mixtures lags well behind that of single-species, even-aged stands. Two mixed-species spacing trials in central Oregon allowed investigation of mixed-species dynamics in a controlled experimental setting. The first site, Pringle Butte, is a mixture of ponderosa pine (Pinus ponderosa...
    Resource Type:
    Masters Thesis
    Full Text:
    . Don) Lindi.). Both studies were planted in the early 1970's and established as replacement series

  • Density, sex ratio, and space use in the gray-tailed vole, Microtus canicaudus

    Creator:
    Bond, Monica L.
    Abstract:
    Female and male mammals have different behavioral strategies for maximizing their reproductive success. Pregnancy and lactation obligate female mammals to provide greater parental investment than males; thus, females compete with each other for food and space to rear their offspring, while male mammals compete with each other for female mates....
    Resource Type:
    Masters Thesis
    Full Text:
    12 1998 APPROVED: Major L'ofessor,J presenting W id ife Science Chair of Department of Fishe s and

  • Nutrient cycling under 450-year-old Douglas-fir stands

    Creator:
    Abee, Albert
    Abstract:
    To investigate the movement of elements (N, P, k, Ca, and Mg) from the tree crowns by natural litterfall and leave wash, plots were established on six 450 year-old growth stands at the H. J. Andrews Experimental Forest. The following are the results of the data analyses. Elemental concentrations contained...
    Resource Type:
    Masters Thesis
    Full Text:
    January 4, 1973. Title: IJutrient Cycling Under 450-Year-old Dougl~s-fir Stands. Abstract app roved e

  • The effects of density and proportion on spring wheat and Lolium multiflorum Lam

    Creator:
    Concannon, Julie Ann
    Abstract:
    This thesis consists of four chapters. Literature is reviewed in Chapter 1. Chapter 2 describes an addition series experiment to determine the influence of species density and proportion on vegetative and reproductive yield of spring wheat and Lolium multiflorum. Chapter 3 consists of a growth analysis experiment to determine whether...
    Resource Type:
    Masters Thesis
    Full Text:
    . Shinozaki and Kira (1956) established a yield-density relationship between reciprocal plant weight and

  • Characterization of novel exopolysaccharide producing lactic acid bacteria

    Creator:
    Garcia, Roberto A., III
    Abstract:
    Lactic Acid Bacteria (LAB), an important group of organisms in modern food production, are known to secrete a unique compound called exopolysaccharide (EPS). EPS is economically important because it enhances functional properties in food and may confer beneficial health effects to consumers. Novel strains of Lactococcus lactis, Streptococcus thermophilus, and...
    Resource Type:
    Masters Thesis
    Full Text:
    thermophilus R-39.…………...……55 Transfer epsN gene from L. lactis Ropy 352 to S. thermophilus R-39………58

  • Using Remote Sensing and Process-based Growth Modeling to Predict Forest Productivity Across Western Oregon

    Creator:
    McAdam, Erick
    Abstract:
    Accurate measurement of forest productivity is fundamental to understand the carbon balance of forested ecosystems. Recent changes in climate highlight the importance of developing methods to measure forest productivity so that sound economic and environmental decision can be made. Efforts to measure forest productivity across the landscape using remote sensing...
    Resource Type:
    Masters Thesis
    Full Text:
    ecosystem to go negative (Kira & Shidei, 1967). Although empirical stem growth models based on biometric