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Filtering by: Creator Tyburczy, J. Remove constraint Creator: Tyburczy, J. Academic Affiliation Zoology Remove constraint Academic Affiliation: 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:
    . Pespeni, K. B. Schwager, J. A. Tyburczy, K. A. Weersing, A. R. Kirincich, J. A. Barth, M. A. McManus, and

  • Connecting microevolutionary processes with macroevolutionary patterns across space and time

    Creator:
    Uyeda, Josef C.
    Abstract:
    Whether microevolutionary processes can explain macroevolutionary patterns has long been a matter of contentious debate. The debate has persisted largely because of the challenging task of connecting microevolutionary theory, which examines population-level phenomena on the generation scale, to data collected across larger spatial and temporal scales. My dissertation research broadly...
    Resource Type:
    Dissertation
    Full Text:
    Across Space and Time. Abstract approved: ________________________________ Stevan J Arnold Whether

  • On the evolution of correlated color traits in garter snakes

    Creator:
    Westphal, Michael F.
    Abstract:
    How complex traits evolve continues to be a major focus of evolutionary investigation. A current topic of debate is the hypothesis that the phenotypic integration of complex traits gives rise to evolutionary constraints. I studied two color traits in the common garter snake, Thamnophis sirtalis, that show a high level...
    Resource Type:
    Dissertation
    Full Text:
    : ___________________________________________________________ Stevan J. Arnold How complex traits evolve continues to be a major focus of evolutionary

  • The roles of provenance and phylogeny in recruitment, community assembly, and species coexistence in invaded California grasslands

    Creator:
    Brandt, Angela J.
    Abstract:
    Biological invasions pose one of the greatest threats to global biodiversity, but many naturalized invaders coexist with the native community. Community ecology theory provides a framework for understanding the mechanisms by which invaders might coexist with native species or exclude them from the community, thus informing management practices to maximize...
    Resource Type:
    Dissertation
    Full Text:
    DISSERTATION OF Angela J. Brandt for the degree of Doctor of Philosophy in Zoology presented on March 14

  • Phytoplankton shading of marine benthic macrophytes: Implications for intertidal community structure

    Creator:
    Kavanaugh, Maria T.
    Abstract:
    Previous observations of light levels and phytoplankton abundances along the Oregon coast demonstrated that phytoplankton attenuated light sufficiently to potentially limit the growth of intertidal macrophytes and therefore structure local intertidal communities. Inspired by this observation, in spring 2004, I initiated a study to quantify the direct and indirect benthic...
    Resource Type:
    Masters Thesis
    Full Text:
    if included. Morgan Packard, Matt Robart, Amber Steed, Karen Lashenke, Clara Funk, and Joe Tyburczy

  • 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:
    Arnold, S. J. (1972). The evolution of courtship behavior in salamanders. Ph.D. Thesis, The University

  • Effects of environmental stress on intertidal mussel reproduction

    Creator:
    Petes, Laura E.
    Abstract:
    Environmental stress can negatively affect the ability of organisms to reproduce. Energetic trade-offs exist in all organisms, and under stress, energy may be allocated away from reproduction and towards physiological defense and repair mechanisms. The rocky intertidal environment is ideal for investigating the influence of environmental stress, as organisms are...
    Resource Type:
    Dissertation
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    for our daily chats, Chris Krenz for introducing me to fieldwork, Joe Tyburczy for many fun times

  • 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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    -Tyburczy for being such a welcoming, supportive, and knowledgeable senior graduate student (and now post

  • Pheromone mechanisms and behavioral strategies for maximizing courtship success in a terrestrial salamander, Plethodon shermani

    Creator:
    Vaccaro, Elyse A.
    Abstract:
    Darwin devised the evolutionary theory of sexual selection to account for the manifold extravagances of courtship behaviors and displays. Mating interactions represent a major evolutionary process driving the elaboration, vibrancy, and peculiarity of these courtship traits. For my dissertation research, I strived to elucidate the dynamics that constitute the complex...
    Resource Type:
    Dissertation
    Full Text:
    . Behavioral Ecology and Sociobiology, 49, 176-186. Arnold, S. J. 1976. Sexual behavior, sexual

  • Aquatic insect adaptations to different flow regimes

    Creator:
    Yamamuro, Asako Melody
    Abstract:
    My thesis explored the effects of environmental variability on population dynamics and community composition of aquatic insects. Environmental variability in the form of flow regime in streams can limit the distribution and life-history traits of aquatic insects. I used tributaries to the McKenzie River in Oregon with dramatically different flow...
    Resource Type:
    Dissertation
    Full Text:
    summers in Oregon had been the H. J. Andrews Experimental Forest. I’d like to thank Kathy Keable and