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Filtering by: Creator Johnston, Brittany Remove constraint Creator: Johnston, Brittany Academic Affiliation Zoology Remove constraint Academic Affiliation: Zoology

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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
    Full Text:
    out to Melody Rudenko, Brittany Barker, Arianne Cease, Sherine Bridges, Heather Carpenter and Kathy

  • Chronobiology of garter snakes : environmental and hormonal mechanisms mediating hibernation and reproduction

    Creator:
    Lutterschmidt, Deborah I.
    Abstract:
    Most vertebrates exhibit seasonality in many life history traits. Such seasonal rhythms are temporally organized via the transduction of environmental cues (e.g., photoperiod, temperature) into appropriate endocrine signals. However, among ectothermic vertebrates that undergo continuous winter dormancy, temperature is the only environmental cue available for synchronizing seasonal rhythms. Most intriguing...
    Resource Type:
    Dissertation
    Full Text:
    laboratory: Brittany Barker, Renée Catullo, Arianne Cease, Christopher Friesen, Daniel Grilli, Giselle