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Filtering by: Creator Pitts, Gerald Stephen Remove constraint Creator: Pitts, Gerald Stephen Committee Member Chambers, Kenton L. Remove constraint Committee Member: Chambers, Kenton L.

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  • Description of the plant communities and succession of the Oregon coast grasslands

    Creator:
    Ripley, James Douglas
    Abstract:
    In an effort to describe the plant communities and succession of the Oregon coastal grasslands, vegetation and environmental data were collected from 75 stands at 24 separate locations ranging from Cape Falcon in Tillamook County to Cape Ferrelo in Curry County. The vegetation data consisted of cover and frequency values...
    Resource Type:
    Dissertation
    Full Text:
    , Robert E. Frenkel and Gerald H. Simonson, for their guidance and support. The field assistance pro

  • A systematic study of the genus Phytocoris Fallén (Heteroptera:Miridae) in western North America

    Creator:
    Stonedahl, Gary Michael
    Abstract:
    The western Nearctic species of the genus Phytocoris Fallen were taxonomically revised. Over 15,000 specimens were examined. Information concerning host plant associations and distributions was compiled and summarized for use by future researchers. External morphological features and characters of the male genitalia were used to distinguish species. The genital tubercles...
    Resource Type:
    Dissertation
    Full Text:
    . Kenton L. Chambers, Robert E. Frenkel, James D. Hall, and William P. Stephen, for their comments on the

  • A revision of the black grass bug genus Irbisia Reuter (Heteroptera:Miridae)

    Creator:
    Schwartz, Michael David
    Abstract:
    The black grass bug genus Irbisia Reuter was revised. Over 18,000 specimens were examined and information concerning the biology, host plant and distributional relationships of the species was compiled. In addition to external characters, the male claspers and vesica, and the female dorsal libiate plate of the bursa copulatrix and...
    Resource Type:
    Masters Thesis
    Full Text:
    ; Brigham Young University, Provo, Utah, (BYU), Dr. Stephen L. Wood; California State Department of Food