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Filtering by: Creator Smith, Catherine Bennett Remove constraint Creator: Smith, Catherine Bennett Degree Field Zoology Remove constraint Degree Field: Zoology Rights Statement In Copyright Remove constraint Rights Statement: In Copyright

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  • 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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    AN ABSTRACT OF THE DISSERTATION OF Catherine Anne Palmer for

  • The effects of an emerging pathogen on amphibian host behaviors and interactions

    Creator:
    Han, Barbara A.
    Abstract:
    Contemporary environmental change encompasses massive biodiversity loss and increasing numbers of emerging diseases worldwide. As part of a global biodiversity crisis, amphibians are disappearing at unprecedented rates. Batrachochytrium dendrobatidis is an emerging infectious pathogen prominently associated with many declines. Chapter 1 reviews the past decade of research on this system...
    Resource Type:
    Dissertation
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    for your generosity and hospitality, Erin. Catherine Searle was a welcome partner in crime for

  • Population genetics, ecology and evolution of a vertebrate metacommunity

    Creator:
    Manier, Mollie Kim
    Abstract:
    Population genetic structure is widespread in many organisms and can be found at small spatial scales. Fine-scale differentiation is the result of ecological and evolutionary processes working together to produce an overall pattern, but the relative importance of these factors in population differentiation is poorly understood. The goals of my...
    Resource Type:
    Dissertation
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    and Jim Manier, Morgan Manier, Laura Arnold, Brittany Barker, Al Bennett, Man Bennett, Rudi

  • 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
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    Vaccaro, Dr. Erika Adams, Doug DeGross, Jerod Sapp, and Dr. Catherine Palmer. Many of my colleagues

  • New insights into the biology of theropod dinosaurs

    Creator:
    Quick, Devon E.
    Abstract:
    There is little, if any, direct fossil evidence of the cardiovascular, respiratory, reproductive or digestive biology of dinosaurs. However, a variety of data can be used to draw reasonable inferences about the physiology of the carnivorous theropod dinosaurs (Archosauria: Theropoda). Extant archosaurs, birds and crocodilians, possess regionally differentiated, vascularized and...
    Resource Type:
    Dissertation
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    exceed those in similar-mass ectotherms by some 15-20 fold (Bennett, 1991; Bennett et al., 2000

  • 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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    of the Blaustein lab. Erin Scheessele, John Romansic, Barbara Han, Catherine Searle, Lindsay

  • So Long and Thanks for All the Sponge: Cryptic Intertidal Communities, Consequences of Ocean Acidification, and New Directions for Science Education

    Creator:
    Rickborn, Alissa J.
    Abstract:
    The current generation of scientists will be asked to mitigate climate change, stall biodiversity loss, and protect ecological communities. These are tasks that require a knowledge of both ecological and social systems to be undertaken successfully. Therefore, my dissertation spans the fields of community ecology and social sciences in an...
    Resource Type:
    Dissertation
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    intertidal sponge Halichondria panicea. Biol. Bull. 171, 371–378. Bell, J. J., Bennett, H. M., Rovellini

  • Reproductive implications of parasitic infections and immune challenges in garter snakes

    Creator:
    Uhrig, Emily J.
    Abstract:
    Parasitic infections and immune challenges can affect host reproductive fitness and, ultimately, the evolution of host populations in a myriad of ways. The fitness implications of parasitic infections range from increased host mortality to subtle changes in reproductive investment. From alterations of behaviors, sexual signaling, and competitive ability to changes...
    Resource Type:
    Dissertation

  • Habitat Use and Ecological Interactions of Invasive Lionfish in the Bahamas

    Creator:
    Davis, Alexandra C. D.
    Abstract:
    Invasive species are a growing global economic and ecological problem. Invasive Indo-Pacific lionfish (Pterois spp.) are known to have extreme negative effects on coral-reef communities in the Bahamas, so understating their distribution within and among reefs, what limits their local movements, and the effects they have on native prey species...
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    Dissertation
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    other fishes in the Atlantic (Côté and Smith 2018). Fig 1.1 Distribution map of invasive

  • All hosts are not created equal : variation in amphibian responses to an emerging fungal pathogen and why it matters

    Creator:
    Gervasi, Stephanie S.
    Abstract:
    Emerging infectious diseases are increasing globally and are a threat to human, wildlife, and ecosystem health. The emerging fungal pathogen, Batrachochytrium dendrobatidis (Bd), or amphibian chytrid fungus, is associated with worldwide amphibian population declines and extinctions. Bd has been found on every continent where amphibians exist and has been documented...
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    Dissertation
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    consider myself very fortunate to have shared time in the lab with Catherine. Lindsay Biga has been such