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  • A characterization of seasonal pools in Central Oregon's high desert

    Creator:
    Dlugolecki, Laura
    Abstract:
    Seasonal wetlands in arid and semi-arid lands provide an important source of surface water in otherwise dry lands. Central Oregon's high desert, located in the Northern Great Basin (NGB) is dotted with hundreds of seasonal pools, locally called playas. The playas hold water or snow during parts of winter and...
    Resource Type:
    Masters Thesis
    Full Text:
    ). Central Oregon seasonal pool hydrology is assumed to operate in a similar manner as the pools in

  • Development of baseline data on Oregon's high desert vernal pools

    Creator:
    Wyland, Sara Alice
    Abstract:
    Vernal pools are ephemeral surface water wetlands with unique hydrology, ecology and species composition. Rare and endemic species rely on vernal pool habitat due to specialization traits the species possess because they are adapted to the extreme conditions. Many vernal pool basins have been topographically and hydrologically altered and are...
    Resource Type:
    Masters Thesis
    Full Text:
    . ........................................................15 Figure 4. Desiccated and drying vernal pool beds in Eastern Oregon demonstrating shrink-swell

  • Effects of grass seed agriculture on aquatic invertebrate communities in seasonal wetlands of the southern Willamette Valley, Oregon

    Creator:
    Wyss, Lance A.
    Abstract:
    An estimated 99% of native wet prairie has been lost in the Willamette Valley, Oregon, but a large number of seasonal wetlands remain on private lands dedicated to grass seed production within the historical wet prairie landscape. Because agriculture is known to alter physical and chemical wetland conditions, I investigated...
    Resource Type:
    Masters Thesis
    Full Text:
    in Seasonal Wetlands of the Southern Willamette Valley, Oregon. Abstract approved