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Filtering by: Funding statement Funding for this work is supported by the United States National Science Foundation Systematic Biology program DEB 0919583 and DEB 0919389. Remove constraint Funding statement: Funding for this work is supported by the United States National Science Foundation Systematic Biology program DEB 0919583 and DEB 0919389. Advisor Lytle, David A. Remove constraint Advisor: Lytle, David A.

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  • Diversity and community structure of aquatic insects in isolated montane desert streams

    Creator:
    Bogan, Michael T.
    Abstract:
    Local aquatic insect diversity and community structure is the result of multiple local and regional factors, and observed patterns depend upon the spatial and temporal scale under examination. Isolated stream systems in arid regions represent a new challenge in understanding the drivers of diversity and community structure, as most studies...
    Resource Type:
    Masters Thesis
    Full Text:
    given their small sizes, and the results of this study suggest that this diversity is supported through

  • Ecological responses to riverine floods and flow alteration

    Creator:
    McMullen, Laura E.
    Abstract:
    Floods are major disturbance events for riverine ecosystems, directly and indirectly impacting organisms and their habitat. In this study I investigated the role of riverine floods and flow alteration in regulating aquatic macroinvertebrate population and community structure. I examined this problem using a variety of methods: a meta-analytic review of...
    Resource Type:
    Dissertation
    Full Text:
    organization and determination. Sean Craig, the PI for a REU program at Humboldt State University, provided

  • Drought, dispersal, and community dynamics in arid-land streams

    Creator:
    Bogan, Michael T.
    Abstract:
    Understanding the mechanisms that regulate local species diversity and community structure is a perennial goal of ecology. Local community structure can be viewed as the result of numerous local and regional processes; these processes act as filters that reduce the regional species pool down to the observed local community. In...
    Resource Type:
    Dissertation
    Full Text:
    and frequently. The widespread dispersers identified by this experiment included several of the

  • Aquatic community responses to drought disturbance: experimental manipulations of top predator extinctions and stream drying

    Creator:
    Boersma, Kate S.
    Abstract:
    Although it is generally assumed that the intensifying abiotic environment is the primary effect of drought on aquatic organisms, drought-induced top predator extinctions may be an important underlying mechanism. I used manipulative experiments to disentangle the impacts of drying and top predator extinctions on arid-land aquatic invertebrate communities. I then...
    Resource Type:
    Dissertation
    Full Text:
    the classroom and in the desert, and am inspired by his continued love of fieldwork and the hunt for