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Filtering by: Creator McCune, Amelia J. Remove constraint Creator: McCune, Amelia J. Decade 2020-2029 Remove constraint Decade: 2020-2029 Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

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  • Lichen Biomonitoring from Valley to Alpine in Central and Southern California

    Creator:
    Kovasi, Adrienne I.
    Abstract:
    In the mountains of central and southern California, high elevation wilderness areas lack epiphytic lichens that can be used to inform us about atmospheric deposition in multiple ways. Epiphytic lichens are capable of accumulating elements proportionally to the local atmospheric concentration, establishing them as commonly used biomonitor of key elements....
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Bruce McCune In the mountains of central and southern California, high elevation wilderness

  • Scratching the Surface of the Potato Geocaulosphere: Characterizing the Microbiome of Seed Tuber Tare Soil and its Impact on the Rhizosphere Microbiome

    Creator:
    Delventhal, Kayla D.
    Abstract:
    For tuberizing crops like potato (Solanum tuberosum), the geocaulosphere, or the zone of soil in contact with and influenced by the tuber, is a distinct sphere of microbial life and represents an important interface between the potato crop and the soil environment. Upon potato harvest, specific geocaulosphere soil called tare...
    Resource Type:
    Masters Thesis
    Full Text:
    McCune, for helping me understand the world of community analysis and never hesitating to help me

  • Epidemic Dynamics of Sudden Oak Death in the Forests of Oregon

    Creator:
    Carson, Adam
    Abstract:
    Sudden Oak Death (SOD) is a forest disease caused by the oomycete pathogen Phytophthora ramorum, and infects trees in the Western United States and Europe. This generalist pathogen can infect over 130 species of plants, and causes rapid mortality in tree species in the Fagaceae. Sexual reproduction is thought to...
    Resource Type:
    Masters Thesis
    Full Text:
    vitro. Mycological Research. 108:823–827. Brasier, C. M., Denman, S., Rose, J., Kirk, S. A., Hughes

  • An Analysis of Nutrient Depletion in Douglas-fir Forests of the Oregon Coast Range

    Creator:
    Siah, Kaveh G.
    Abstract:
    Nutrient limitation constrains tree growth in many managed forests. Nitrogen (N) is the most common limiting nutrient, but high N supply can shift limitation to other nutrients, particularly phosphorus (P) and the base cations calcium (Ca), magnesium (Mg), and potassium (K). As different soil minerals have different capacities to supply...
    Resource Type:
    Masters Thesis
    Full Text:
    committee, Doug Maguire and Chris Still, and the graduate school representative Bruce McCune, for their

  • The Effect of Canopy Cover and Wildfire Smoke on Near-Surface Temperatures

    Creator:
    Brackett, Amanda
    Abstract:
    Recent shifts from clearcutting to partial retention harvesting on many ownerships and the importance of microclimate dynamics on biotic responses to regional climate highlight the need to understand how microclimate conditions in forest understories differ across gradients of partial overstories. This study compares below-canopy near-surface temperatures at 2cm above ground...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: ___________________________________________________ Klaus J. Puettmann & Christopher J. Still

  • Impacts of Range Management Decisions on Native Pollinators: Innovative Grazing Practices and Riparian Restoration

    Creator:
    Mitchell, Scott R.
    Abstract:
    Animal pollination is critical to plant reproduction in agricultural and wildland ecosystems. Much of the production of seeds and fruits in natural areas, which underlie many food webs, depends on pollination services by insects. The taxon responsible for delivering the bulk of these services in most temperate systems is bees....
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Sandra J. DeBano Abstract Animal pollination is critical to plant reproduction in

  • Diving into Diversity: Fish Populations and Climate Resilience in an Endorheic Basin

    Creator:
    Dew, Aleah
    Abstract:
    The Goose Lake Basin, situated on the border of Oregon and California, USA, faces significant challenges from drought, wildfire, and other environmental stressors. This region hosts numerous endemic fish species such as the Goose Lake redband trout (Oncorhynchus mykiss newberri), Goose Lake lamprey (Entosphenus sp.), Goose Lake tui chub (Siphateles...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ Melanie J. Davis

  • The Impacts of Juniper Removal on Native Herbaceous Vegetation and Surface-Dwelling Invertebrates in the Sagebrush Steppe

    Creator:
    Haab, Kimberly A.
    Abstract:
    Understanding the effects of disturbance and restoration on a species’ habitat is essential for understanding the demographic rates and population trends observed in a species. Sufficient habitat provides the space and resources required for survival and successful reproduction, such as food availability, access to water, protection from predators, protection from...
    Resource Type:
    Masters Thesis
    Full Text:
    likely it would be to see the given community by chance (McCune et al. 2002). T values are test

  • SocioEconomicMag Meets a Platform for SES-Diverse College Students: A Case Study

    Creator:
    Agarwal, Puja
    Abstract:
    Emerging research shows that individual differences in how people use technology sometimes cluster by socioeconomic status (SES) and that when technology is not socioeconomically inclusive, low-SES individuals may abandon it. To understand how to improve technology’s SES-inclusivity, we present a multi-phase case study on SocioEconomicMag (SESMag), an emerging inspection method...
    Resource Type:
    Masters Thesis
    Full Text:
    push myself beyond my limits every day. I would thank Prof. Christopher Hundhausen and Prof. J Nicole

  • Forb Community Response to Various Disturbances in the Pacific Northwest Bunchgrass Prairie

    Creator:
    Watson, Brogan L.
    Abstract:
    Observed declines in native pollinator species worldwide has generated concern and focused research into the disturbances, past and present, which may have contributed to these losses. In grasslands, for example, habitat degradation and fragmentation from historical and current crop production and livestock grazing has left only a few remnants of...
    Resource Type:
    Masters Thesis
    Full Text:
    . CONTRIBUTION OF AUTHORS Scott B. Lukas, Lesley R. Morris, Sandra J. DeBano, and Heidi J. Schmalz