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Filtering by: Creator Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) Remove constraint Creator: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) Committee Member Hall, James D. Remove constraint Committee Member: Hall, James D.

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  • Patterns of interactive segregation in three species of sculpins (Cottus) in western Oregon

    Creator:
    Finger, Terry Richard
    Abstract:
    Species interactions and their effect on the use of habitat by benthic fishes were examined in a guild composed of Cottus perplexus, C. rhotheus, and C. beldingi in the Marys River above Philomath, Oregon, and in a constant environment provided by an artificial stream. In the Marys River system, the...
    Resource Type:
    Dissertation
    Full Text:
    their geographical range. They will therefore not need to adapt to a wide range of conditions and thus

  • 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:
    and mites. Several Nearctic species have been identified as predators of forest and orchard pests

  • The Tabanidae (Diptera) of Oregon

    Creator:
    Mahmoud, Ali Ahmed
    Abstract:
    Fifty species and subspecies and six varieties in eight genera of the family Tabanidae are recognized from Oregon. The following genera are represented in Oregon: Apatolestes Williston, Pilimas Brennan, Stonemyia Brennan, Silvius Meigen, Chrysops Meigen, Atylotus Osten Sacken, Hybomitra Enderlein and Tabanus Linnaeus. Adults and larvae were collected from various...
    Resource Type:
    Dissertation
    Full Text:
    Health, Berkeley, California, for his suggestions on lines of research and also the identification of