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  • Evolution and risk in conservation of Pacific salmon

    Creator:
    Currens, Kenneth P.
    Abstract:
    Identifying appropriate units for conservation requires knowledge of evolutionary patterns and risks of managing at different geographical and genetic scales. I examined genetic diversity at different geographical scales among 11,400 rainbow trout (Oncorhynchus mykiss) from 243 locations in 13 major river basins throughout much of their range and among coho...
    Resource Type:
    Dissertation
    Full Text:
    River 1985 Coweeman River A 12 Skamania summer strain 1985 South Santiarn Hatchery A 13 Skamania summer

  • Revision of the genus Platylygus (Heteroptera: Miridae)

    Creator:
    Equihua-Martinez, Armando
    Abstract:
    The genus Platylygus Van Duzee was erected in 1915 and revised by Kelton and Knight in 1970 describing 26 new species from United State and Mexico. Despite this prior revision, taxonomic problems have been encountered with the use of the keys and in the identification given the close similarity among...
    Resource Type:
    Dissertation
    Full Text:
    collections in Canada, United States and Canada, limited collecting in the state of Oregon, study of male