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  • 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
    Full Text:
    Mate Choice in a Terrestrial Salamander, Plethodon shermani, with Long-Term Sperm Storage

  • Geographic variation and systematics of the western Plethodon

    Creator:
    Brodie, Edmund D.
    Abstract:
    The western Plethodon include vandykei vandykei, v. idahoensis, larselli, dunni,vehiculum, stormi, elongatus, and an undescribed form referred to as the "unstriped" Plethodon. These salamanders have been placed into three species groups: the Vandykei group, the Vehiculum group, and the Elongatus group. Range maps are provided and geographic variation is discussed...
    Resource Type:
    Dissertation
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    described (Highton and Brame, 1965). In addition to these, a salamander which has been considered to be a

  • Ecology of populations of Van Dyke's salamanders in the Cascade Range of Washington State

    Creator:
    McIntyre, Aimee P.
    Abstract:
    The Van Dyke's salamander (Plethodon vandyke,) is a rare species endemic to Washington State. It has been found in cool moist microhabitats along streams, splash zones of waterfalls, and headwater seeps. We explored the association of the Van Dyke's salamander with hydrologic condition, geomorphology, disturbance characteristics, and vegetation structure in...
    Resource Type:
    Masters Thesis
    Full Text:
    The Van Dyke's salamander (Plethodon vandyke,) is a rare species endemic to Washington State. It has

  • 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:
    Pheromone Signaling System in the Salamander Genus Plethodon (Amphibia: Plethodontidae) Abstract

  • 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
    Full Text:
    Ocoee Salamander, Desmognathus ocoee. Abstract approved: The majority of female animals are

  • 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
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    salamanders (reviewed in Chapter 2). At least seven of the ten currently recognized salamander families are

  • Riparian vegetation and larval Pacific Giant (Dicamptodon tenebrosus) and adult Western Redback (Plethodon vehiculum) salamanders in the Oregon Coast Range

    Creator:
    Graff, Paula (Paula Hayes)
    Abstract:
    Riparian areas in the Pacific Northwest provide important biotic and abiotic features, such as down wood, moist microsites, and abundant invertebrate prey that benefit aquatic and terrestrial amphibians. Reported high densities of amphibians from streams and riparian areas in the Pacific Northwest highlight their importance in riparian food webs. Amphibians...
    Resource Type:
    Masters Thesis
    Full Text:
    menziesii). The two most common amphibians detected were the aquatic Pacific Giant Salamander larvae

  • 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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    salamanders. Pheromones mediate two phases of plethodontid reproduction: mate attraction prior to courtship

  • 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:
    Sexual Stimulus in a Woodland Salamander ......................................... 29 Abstract

  • Courtship behaviors in the salamander genus Aneides

    Creator:
    Sapp, Jerod Rothwell
    Abstract:
    Salamander courtship coordinates the exchange of gametes. Plethodontids have evolved an elaborate means by which this is done. Throughout the family Plethodontidae a tail-straddling walk is performed to orchestrate the transfer of sperm. Typically this behavior is linear, however in the genus Aneides there are exceptions. In the genus Aneides...
    Resource Type:
    Masters Thesis
    Full Text:
    Behavior in the Salamander Genus Aneides. Abstract approve Salamander courtship coordinates the exchange