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  • Pacific chorus frog : Pseudacris regilla

    Creator:
    Norris, Tara, Sells, Sarah, and Oregon State University. Extension Service
    Abstract:
    The Pacific chorus frog, which used to be known as the Pacific treefrog, is the most abundant kind (species) of frog in Oregon. Pacific chorus frogs are amphibians, like other frogs, toads, and salamanders. The word amphibian means “double life.” These critters are given this name because they spend some...
    Resource Type:
    Technical Report
    Full Text:
    Pacifi c treefrog,is the most abundant kind (species) of frog in Oregon. Pacifi c chorus frogs are

  • The effects of predation on anuran metamorphosis

    Creator:
    DeVito, Jill
    Abstract:
    Many organisms with complex life cycles undergo transition periods associated with increased vulnerability to predation. Several evolutionary adaptations have been proposed as antipredator defenses for organisms during risky transition periods. These include: shortening of the transition period, parental care, cryptic coloration, and synchrony of risky transitions with large numbers of...
    Resource Type:
    Masters Thesis
    Full Text:
    larval environment. Since the Pacific treefrog (Hy la regilla) is also preyed upon by T. sirtalis