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Filtering by: Creator Wallace, Joe D. Remove constraint Creator: Wallace, Joe D. Degree Field Zoology Remove constraint Degree Field: Zoology

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  • Nearshore distribution of barnacle and mussel larvae and oceanographic mechanisms of onshore transport and delivery

    Creator:
    Tyburczy, Joe A.
    Abstract:
    Recruitment of larvae from the plankton is an important determinant of community structure in marine systems. In populations of many marine species, recruitment determines the basic demographic parameters of immigration, emigration, and reproduction. Moreover, the effect of recruitment as an "ecological subsidy" can determine the strength of interactions among species...
    Resource Type:
    Dissertation
    Full Text:
    DISSERTATION OF Joe A. Tyburczy for the degree of Doctor of Philosophy in Zoology presented on

  • Variation in female reproductive success in amphibians

    Creator:
    Dyal, Leslie A.
    Abstract:
    My dissertation focuses on the factors that influence variation in female reproductive success in plethodontid salamanders and in toads. Variation in reproductive success fuels evolutionary change. Although, females often have been overlooked in studies of reproductive success due to perceived lower levels of variation when compared to variation in male...
    Resource Type:
    Dissertation
    Full Text:
    want to thank Joe Beatty for too many things to list. It suffices to say that I do not think I would

  • Chemical cues and the molecular basis of olfactory chemoreception in caudate amphibians

    Creator:
    Kiemnec, Karen M.
    Abstract:
    Chemoreception is one of the dominant sensory modalities for many species of salamanders (reviewed in Chapter 2). At least seven of the ten currently recognized salamander families are known to respond to some sort of chemical cue. These responses are as varied as delaying hatching, seeking refuge, or initiating aggressive...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________________________ Lynne D. Houck Chemoreception is one of the dominant sensory modalities for many species of

  • Chemical signaling and pheromone evolution in plethodontid salamanders

    Creator:
    Palmer, Catherine Anne
    Abstract:
    My dissertation focuses on the evolutionary forces that have shaped the chemical signaling system of plethodontid salamanders. Pheromones mediate two phases of plethodontid reproduction: mate attraction prior to courtship and female persuasion during courtship. Substrate-borne chemical signals are believed to play an important role in mate attraction for these animals....
    Resource Type:
    Dissertation
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    and Pheromone Evolution in Plethodontid Salamanders Abstract approved: Lynne D. My dissertation

  • Evolution of a pheromone signaling system in the salamander genus Plethodon (Amphibia: Plethodontidae)

    Creator:
    Picard, Amy L.
    Abstract:
    Animal signaling systems frequently utilize multiple traits to produce and transmit a signal. These system elements may span multiple levels of organization. Functional integration of these traits may be expected to generate concordance in evolutionary pattern among system elements, such that evolutionary change in one system component is correlated with...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: _____________________________________________________________________ Lynne D. Houck

  • Reproductive strategies of the Ocoee salamander, Desmognathus ocoee

    Creator:
    Adams, Erika M.
    Abstract:
    The majority of female animals are polyandrous: offspring within a single reproductive event are sired by more than one male. However, we lack a clear understanding of the ultimate causes of polyandry, and of the male reproductive strategies which have evolved in response to selection occurring after insemination. I addressed...
    Resource Type:
    Dissertation
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    study, I examined the nature of polyandry. I collected D. ocoee clutches from the field and assessed

  • Mutual mate choice in a terrestrial salamander, Plethodon shermani, with long-term sperm storage

    Creator:
    Eddy, Sarah L.
    Abstract:
    Sexual selection can influence the mating system of an organism through multiple mechanisms. These mechanisms result in variation in reproductive success among individuals, and include scramble competition, endurance rivalries, contests, mate choice and cryptic choice, and sperm competition. Understanding the mating system of a species requires the identification of which...
    Resource Type:
    Dissertation
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    . Abstract approved: Lynne D. Houck Sexual selection can influence the mating system of an

  • Ultraviolet radiation as an environmental stressor of amphibians

    Creator:
    Bancroft, Betsy A.
    Abstract:
    My thesis explored the effects of and potential mediating mechanisms for an important environmental stressor, ultraviolet-B (UVB) radiation. UVB radiation has negative effects on organisms in both terrestrial and aquatic systems. I used meta-analysis to quantify the effects of UVB radiation on a diversity of aquatic organisms (Chapter 2). UVB...
    Resource Type:
    Dissertation
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    teaching opportunities that I am grateful for. Joe Beatty made my life as a teaching assistant and

  • Changing Climate, Changing Contexts : Variation in Rocky Intertidal Predator-prey Interactions Seen Through an Environmental Stress Framework

    Creator:
    Cerny-Chipman, Elizabeth B.
    Abstract:
    The multifaceted role of the environment in regulating the structure and dynamics of biological communities has long fascinated ecologists and motivated much debate and research. Now, in a time of accelerated global changes due to human impacts, the need to understand how the environment shapes communities has gained new urgency....
    Resource Type:
    Dissertation
    Full Text:
    , Margo Hessing-Lewis, Vanessa Constant, or Joe Tyburczy in my lab. I want to thank the PISCO

  • Ecological aspects of kin discriminating behavior with implications of functional value

    Creator:
    Hokit, D. Grant
    Abstract:
    To assess the context dependence of kin discriminating behavior, I examined kin-biased aggregation behavior in tadpoles of R. cascadae in different ecological conditions. I manipulated food distribution, predator presence, thermal heterogeneity, and relatedness in a multifactorial mesocosm experiment. All four factors interacted to influence tadpole dispersion. My results suggest that...
    Resource Type:
    Dissertation
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    implications of functional value AN ABSTRACT OF THE THESIS OF D. Grant Hokit for the degree of Doctor of