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  • The effects of biomechanical and ecological factors on population and community structure of wave-exposed, intertidal macroalgae

    Creator:
    Blanchette, Carol A.
    Abstract:
    I examined the biomechanical factors that influence the sizes of intertidal macroalgae by studying a population of Fucus gardneri at Fogarty Creek Point, OR. I constructed a mathematical model to predict optimal sizes and probabilities of survival for Fucus under conditions of high and low wave exposure. Predicted optimal sizes...
    Resource Type:
    Dissertation
    Full Text:
    grateful to all the members of my graduate committee: Mark Denny, Doug Derryberry, Stan Gregory and Mark

  • Reproductive and aggressive behaviors in the giant hairy desert scorpion

    Creator:
    Tallarovic, Sara K.
    Abstract:
    The giant hairy desert scorpion, Hadrurus arizonensis, is a long-lived species of North American scorpion that is presented here as an important model for research in mating systems evolution and sexual selection. Many behaviors found in this species were undocumented and are described here for the first time. This thesis...
    Resource Type:
    Dissertation
    Full Text:
    Doug Derryberry for the excellent advice and assistance they have offered during the course of this

  • Stress and reproduction in male garter snakes

    Creator:
    Moore, Ignacio T.
    Abstract:
    Animals respond to stressful situations with increases in plasma levels of glucocorticoid stress hormones. These hormones originate from the adrenal cortex in response to stimulation of the hypothalamic-pituitary-adrenal axis. Glucocorticoids (corticosterone in reptiles) function to mobilize energy and suppress unnecessary functions until the stress passes. Among these immediately unnecessary functions...
    Resource Type:
    Dissertation
    Full Text:
    , Fred Stormshak, Carl Schreck, and Doug Derrybeny for serving on my committee as well as providing

  • A comparison of depression, stress and self-image between younger and older adolescent mothers

    Creator:
    Kitzrow, Martha Anne.
    Abstract:
    Adolescent pregnancy is a major social problem which results in negative psychological, medical, developmental, economic and educational consequences for both mother and child. A review of the literature examined psychological and sociocultural factors and negative consequences associated with adolescent pregnancy. There has been little research on age specific differences between...
    Resource Type:
    Dissertation
    Full Text:
    people: The members of my committee, Bill Becker, Doug Derryberry, Reese House, Ray Lowe, and Carol