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  • Functional groups, traits, and the performance of species in restoration

    Creator:
    Roberts, Rachael E. (Rachael Elaine)
    Abstract:
    In ecological restoration, species that are sown to increase the native plant diversity range in establishment ability. Some species readily establish, while others rarely do. This study set out to investigate some of the potential processes influencing species establishment, as well as the traits that are associated with the success...
    Resource Type:
    Masters Thesis
    Full Text:
     members of my committee, Eric Seabloom and Ricardo Letelier  also provided great suggestions and helped

  • Electrolyte Design: Improving Capacity and Structural Stability of Electrodes

    Creator:
    Xu, Yunkai
    Abstract:
    The grand plan of carbon neutralization and COP26 in Glasgow require a quick shift of energy sources from conventional fossil fuel to a more renewable substitute such as wind, or solar energy. However, the intermittency of those renewable energy sources does not meet the demand of the energy, which requires...
    Resource Type:
    Dissertation
    Full Text:
    thank my committee members Dr. Zhenxing Feng, Dr. Ricardo M Letelier, and Dr. Chong Fang for devoting

  • Phylogenetic Studies in Tenebrionidae (Coleoptera) and Related Families

    Creator:
    Kanda, Kojun
    Abstract:
    In this dissertation, I present the results from three studies: (1) a phylogeny of Tenebrionoidea (Coleoptera) inferred from a seven-gene dataset derived from PCR and Sanger sequencing; (2) a phylogeny of Tenebrionidae, the largest family in Tenebrionoidea, inferred from a four-gene dataset also derived from PCR and Sanger sequencing; (3)...
    Resource Type:
    Dissertation
    Full Text:
    .   Stevan   Arnold,   Scott   Baker,   Ricardo  Letelier,  Aaron  Liston,  Dave  Lytle

  • Prokaryotes associated with marine crust

    Creator:
    Mason, Olivia Underwood
    Abstract:
    Oceanic crust covers nearly 70% of the Earth's surface, of which, the upper, sediment layer is estimated to harbor substantial microbial biomass. Marine crust; however, extends several kilometers beyond this surficial layer, and includes the basalt and gabbro layers. In particular, the basalt layer has high permeabilities which allows for...
    Resource Type:
    Dissertation
    Full Text:
    also like to thank my committee members, Drs. Michael S. Rappé, Ricardo M. Letelier, Mario E. Magana

  • Evolutionary Dynamics of Genomes and Endosymbionts in Plant-Parasitic Nematodes

    Creator:
    Wasala, Wasala Mudiyanselage Sulochana K.
    Abstract:
    Plant-parasitic nematodes cause more than US $100 billion in annual agriculture loss worldwide. Thorough knowledge of their genetic diversity, and interactions with endosymbionts and environment have the potential to provide valuable insights into the basic biology of these animals, and assist future efforts aimed at management of these plant parasites....
    Resource Type:
    Dissertation
    Full Text:
    and Ricardo Letelier for serving on my graduate committee and for their valuable input to make

  • Satellite observations of the influence of mesoscale ocean eddies on near-surface temperature, phytoplankton and surface stress

    Creator:
    Gaube, Peter
    Abstract:
    The influence of mesoscale ocean eddies on near-surface ocean temperature, surface stress and phytoplankton communities is investigated by collocating numerous satellite measurements along with vertical profiles of oceanic temperature and salinity to the interiors of eddies identified and tracked in altimetric sea surface height maps. The surface currents associated with...
    Resource Type:
    Dissertation
    Full Text:
    role model and a friend, for this I’m grateful. My committee, Michael Behrenfeld, Ricardo Letelier

  • Ecology and Environmental Controls of Two Keystone Groups of Oceanic Microorganisms : Diazotrophs and Pathogenic Vibrio

    Creator:
    Gradoville, Mary Rose
    Abstract:
    Marine bacteria play vital roles in every niche of the ocean, from small-scale symbioses to large-scale productivity and the regulation of Earth’s climate. Recent advances in molecular tools now allow us to probe the genetic potential of entire microbial communities. The next step is linking these diverse communities to the...
    Resource Type:
    Dissertation

  • Dynamics of organic matter production and degradation during coastal diatom blooms

    Creator:
    Wetz, Michael S.
    Abstract:
    Experiments were designed to answer key questions about diatom-derived organic matter cycling (i.e., production and degradation) in coastal systems. Dissolved organic matter (DOM) production was examined in axenic batch cultures of five diatom species. Dissolved organic carbon (DOC) release rates varied between species, but were significantly higher for all species...
    Resource Type:
    Dissertation
    Full Text:
    ) Ricardo Letelier, who was one of the first faculty here other than Pat who I had significant

  • Phytoplankton shading of marine benthic macrophytes: Implications for intertidal community structure

    Creator:
    Kavanaugh, Maria T.
    Abstract:
    Previous observations of light levels and phytoplankton abundances along the Oregon coast demonstrated that phytoplankton attenuated light sufficiently to potentially limit the growth of intertidal macrophytes and therefore structure local intertidal communities. Inspired by this observation, in spring 2004, I initiated a study to quantify the direct and indirect benthic...
    Resource Type:
    Masters Thesis
    Full Text:
    included Dr. Karina Nielsen, my minor professors- Dr. Ricardo Letelier (Oceanography) and Dr. Lisa Madsen

  • Storage Battery Chemistries with Earth Abundant Charge Carriers

    Creator:
    Hong, Jessica Junghwa
    Abstract:
    The demand for the development of sustainable energy is an all time high as we burn through limited fossil fuel reserves and as environmental concerns rise every year. Renewable energy sources such as wind and solar power have limitations due to inconsistent power supply that cannot meet the regular needs...
    Resource Type:
    Dissertation
    Full Text:
    . Ricardo Letelier. They have always made time for the committee meetings and kept me on track with the