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Filtering by: Advisor Hixon, Mark A. Remove constraint Advisor: Hixon, Mark A. Subject Fish populations -- Bahamas Remove constraint Subject: Fish populations -- Bahamas

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  • Invasive Pacific Lionfish Alters Native Community Interactions on Atlantic Coral Reefs

    Creator:
    Kindinger, Tye L.
    Abstract:
    Biological invasions have been identified as one of the prominent drivers of global environmental change. In particular, invasive predators typically have substantial negative effects on populations of native prey, even driving species to extinction in extreme cases. However, beyond direct predatory effects, little is understood regarding the specific mechanisms by...
    Resource Type:
    Dissertation
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    Abstract approved: ______________________________________________________ Mark A. Hixon

  • Factors affecting the dynamics and regulation of coral-reef fish populations

    Creator:
    Webster, Michael Scott
    Abstract:
    Ecologists have long questioned why fluctuating populations tend to persist rather than go extinct. Populations that persist indefinitely are regulated by mechanisms that cause demographic density dependence, which works to bound fluctuation above zero. In a series of studies, I have sought to determine the processes and mechanisms that regulate...
    Resource Type:
    Dissertation
    Full Text:
    -95-3042 and 97-3 109) to M. Hixon. Contribution of Authors Dr. Mark A. Hixon was directly

  • Population dynamics of coral-reef fishes : spatial variation in emigration, mortality, and predation

    Creator:
    Overholtzer-McLeod, Karen L.
    Abstract:
    Understanding the dynamics of open marine populations is difficult. Ecological processes may vary with the spatial structure of the habitat, and this variation may subsequently affect demographic rates. In a series of observational and experimental studies in the Bahamas, I examined the roles of emigration, mortality, and predation in the...
    Resource Type:
    Dissertation
    Full Text:
    approved: Mark A. Hix Understanding the dynamics of open marine populations is difficult. Ecological

  • Role of priority effects and habitat complexity in coral-reef fish communities

    Creator:
    Almany, Glenn R.
    Abstract:
    Understanding the processes that influence the composition of animal communities is a central goal in ecology. Interactions between established residents and colonizing juveniles that affect the subsequent survival of juveniles may influence community composition. In a series of experiments on coral reef fish communities in the Bahamas and Australia, I...
    Resource Type:
    Dissertation
    Full Text:
    been impossible. My advisor, Mark Hixon, has been a source of support and inspiration in many ways. I