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Filtering by: Creator Garcia, Marissa C. Remove constraint Creator: Garcia, Marissa C. Advisor Blaustein, Andrew R. Remove constraint Advisor: Blaustein, Andrew R.

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  • Ontogenetic Shifts in Disease Response in Native and Invasive Anuran Species

    Creator:
    Urbina Gonzalez, Jenny Cecilia
    Abstract:
    This dissertation presents a different approach to understanding how amphibians are responding to disease through ontogeny. Although numerous efforts have been conducted to understand host responses to the fungus Batrachochytrium dendrobatidis (Bd), studies have been restricted to distinct developmental stages. This dissertation provides information on host response to Bd across...
    Resource Type:
    Dissertation
    Full Text:
    : ____________________________________________________________________ Tiffany Sacra Garcia Andrew R. Blaustein This dissertation presents a different

  • The Effects of Host and Pathogen Variation on Infection Dynamics in the Amphibian-Chytrid System

    Creator:
    Dang, Trang D.
    Abstract:
    This dissertation uses manipulative experiments to explore amphibian-Bd infection dynamics. Although there has been almost two decades research since the discovery of Bd, many questions still remain regarding what conditions mediate chytridiomycosis virulence. My research shows how certain host and pathogen factors can influence disease virulence. Identifying how host and...
    Resource Type:
    Dissertation
    Full Text:
    Violin plot (with boxplot overlay) of Bd infection intensity A) P. regilla, B) A. boreas, and C) R

  • Effects of pesticides on amphibians with special reference to the pyrethroidinsecticide, cypermethrin

    Creator:
    Biga, Lindsay M.
    Abstract:
    Pollution by pesticides is a ubiquitous concern for wildlife. The effects of pesticides are especially concerning in aquatic environments, which are particularly vulnerable as they have several exposure routes for the influx of chemicals. These effects are of particular concern as biodiversity loss reaches unprecedented rates. This includes recent declines...
    Resource Type:
    Dissertation
    Full Text:
    . I would also like to thank my committee. Tiffany Garcia provided feedback that helped focus my

  • Environmental influences on host-pathogen dynamics of the amphibian chytrid fungus

    Creator:
    Buck, Julia C.
    Abstract:
    The causes of the global biodiversity crisis are varied and complex. Anthropogenic threats may act in isolation, or interact additively or synergistically with each other or with natural stressors to affect sensitive taxa. The recent emergence of many infectious diseases in wildlife has brought attention to the role of disease...
    Resource Type:
    Dissertation
    Full Text:
    amphibian chytrid fungus AN ABSTRACT OF THE DISSERTATION OF Julia C. Buck for the degree of Doctor

  • The effects of multiple pathogens on amphibians in the Pacific Northwest

    Creator:
    Romansic, John M.
    Abstract:
    The earth is undergoing a “biodiversity crisis” characterized by loss of populations, species, genetic diversity, and ecosystem services. Part of this crisis consists of population declines, extinctions, and increased incidence of deformities in amphibians. It is unknown whether deformities contribute to these declines. Many cases of population declines in amphibians...
    Resource Type:
    Dissertation
    Full Text:
    the lab, they also given me substantial aid. Tiffanny Garcia was an excellent leader as a postdoc

  • Disentangling the Biotic and Abiotic Drivers of the Amphibian Disease Chytridiomycosis

    Creator:
    Bradley, Paul W.
    Abstract:
    The ongoing worldwide loss of biodiversity has been described as a "biodiversity crisis," "the Anthropocene defaunation," and alternatively "an extinction spasm." More recently, many scientists have come to the conclusion that we are witnesses to Earth's sixth major mass extinction event, which has the potential to fundamentally alter basic ecological...
    Resource Type:
    Dissertation
    Full Text:
    , Lona Thompson, Philip Schapker, Dennis Dugan, Sarah Close, Emily Uhrig, Tiff Garcia, Jessica Reimer

  • 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
    Full Text:
    Michael, Anna Jolles, Tiffany Garcia, and Josh Lawler made the Blaustein lab a fantastic home for five

  • 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
    Full Text:
    presentations including my defense seminar. Tiffany Garcia and Anna Jolles were a dynamic pair of postdocs

  • Effects of Diversity on Emerging Infectious Diseases of Amphibians

    Creator:
    Snyder, Paul W.
    Abstract:
    Species declines and extinctions have been recorded across taxa as evidence of an ongoing global biodiversity crisis. Amphibians are at the forefront of these declines with nearly one third of amphibian species estimated to be at risk of extinction. While many factors contribute to population declines and extinctions, the role...
    Resource Type:
    Dissertation
    Full Text:
    1999, Davidson, C 2004, Stuart et al. 2004, Fisher and Garner 2020) birds (Sodhi et al. 2004, Monroe

  • 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:
    snake stomachs. In another observational field study, Drummond and Garcia (1989) found that several