Search Constraints

Start Over
Filtering by: Subject Alsea River (Or.) Remove constraint Subject: Alsea River (Or.) Committee Member Beschta, Bob Remove constraint Committee Member: Beschta, Bob

Search Results

  • From continua to patches : longitudinal patterns in the Middle Fork of the John Day River, Oregon

    Creator:
    Wright, Kristopher Keith
    Abstract:
    The Middle Fork John Day River is composed of low gradient, alluvial valley segments separated by constrained, canyon-like reaches, and has a history of multiple land-uses. These factors can alter the physical and biological structure of streams, and disrupt the longitudinal river continuum. I examined habitat, fish, macroinvertebrates, and primary...
    Resource Type:
    Dissertation
    Full Text:
    Patches: Longitudinal Patterns in the Middle Fork of the John Day River, Oregon. Abstract Approved

  • Lotic macroinvertebrate distribution patterns in northeastern Oregon

    Creator:
    Gerth, William J.
    Abstract:
    This study was an investigation of lotic macroinvertebrate distribution in northeastern Oregon at two different spatial and biological scales. Examination of assemblages at a limited spatial scale revealed relationships with natural and disturbance gradients and led to questions about distribution of a population at broader spatial scales. In a 16...
    Resource Type:
    Masters Thesis
    Full Text:
    ............................................................................ 23 2.7 Historic hydrograph for the NF John Day River near Dale, OR ........ 23 2.8 NMDS ordination