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  • Influence of wetland landscape structure of shorebirds wintering in an agricultural valley

    Creator:
    Taft, Oriane Williams
    Abstract:
    Understanding how wetland birds use habitat is pivotal to developing successful and beneficial conservation strategies. Although it has been an ardent topic in forest research for some time, how species interact with the spatial patterning of habitat across a landscape (i.e., landscape structure) has been more or less neglected in...
    Resource Type:
    Dissertation
    Full Text:
    project. I thank my committee members, Robsen Bonnichsen, Gay Bradshaw, John Hayes, Nathan Schumaker, and

  • Complexity in host-pathogen dynamics : dispersal uncertainties, metapopulation persistence and the role of a changing climate

    Creator:
    Xie, Yang
    Abstract:
    Emerging infectious diseases impact both human and wildlife populations. Infectious agents, in particular the aquatic fungus Batrachochytrium dendrobatidis (chytrid), have an influential role in driving global amphibian population declines. The emergence of the chytrid fungus has aspects of both geographic spread as well as climate shifts altering environmental conditions and...
    Resource Type:
    Dissertation
    Full Text:
    . Chapter 3: Nathan H. Schumaker and Allen Brookes helped design the chytrid model. Roland A. Knapp

  • Identifying factors driving sensitivity to fragmentation in forest breeding songbirds

    Creator:
    Valente, Jonathon J.
    Abstract:
    Habitat loss and fragmentation are the greatest threats to biodiversity worldwide. Fragmentation impacts landscape configuration, resulting in a larger number of patches that are smaller in size and further apart from one another. Island biogeography and metapopulation theory predict populations in these remnant patches should be smaller, have higher extinction...
    Resource Type:
    Dissertation
    Full Text:
    helping me develop and implement the analyses in this document, Nathan Schumaker for making me think

  • The Influence of Alternate Life History Strategies and Natal Conditions on the Reproductive Performance of Adélie Penguins Breeding on Ross Island, Antarctica

    Creator:
    Kappes, Peter J.
    Abstract:
    A fundamental objective of ecology and population biology is to identify factors that drive population dynamics and determine the population-level consequences of their interaction with the environment. Studies of reproductive performance can illuminate population dynamic processes, including the links between organismal biology, the environment, and life history theory. A central...
    Resource Type:
    Dissertation
    Full Text:
    have happened without you! Nathan Schumaker was a constant voice of calm throughout the ups and

  • Jumping in with Both Feet: Exploring Factors that Shape Juvenile Amphibian Movement

    Creator:
    Bredeweg, Evan M.
    Abstract:
    Investigation into how animals move within the landscape is important for both understanding of ecological processes and conservation management. Animal movement is important in shaping life history transitions, demographics, individual fitness, and species distributions. However, as landscapes become increasingly affected by human activities, movement becomes important as species navigate landscapes...
    Resource Type:
    Dissertation
    Full Text:
    grateful for your advice, guidance, and patience through it all. I want to thank Dr. Nathan Schumaker for

  • Movement Ecology and Population Dynamics of the Endangered Hawaiian Duck (Anas wyvilliana)

    Creator:
    Malachowski, Christopher P.
    Abstract:
    Fundamental objectives in the field of conservation biology involve understanding the processes that influence small and declining populations and applying that knowledge to develop appropriate monitoring strategies and targeted management and conservation actions. Critical first steps in determining the relative role of factors that drive population declines involves estimation of...
    Resource Type:
    Dissertation
    Full Text:
    my committee members – Dr. Susan Haig, Dr. Nathan Schumaker, and Dr. Michael Adams – for their

  • Coastal Soil and Structure Behavior during Earthquake-Tsunami Multi-Hazards

    Creator:
    Qiu, Yingqing
    Abstract:
    Coastal multi-hazards, i.e., earthquakes followed by tsunamis, induce severe damage to coastal infrastructure. The multi-hazards can cause soil liquefaction, which is one of the major concerns for evaluating sediments transport potential and structure failure mechanisms. The objectives for this work is threefold. First, to build and validate a soil numerical...
    Resource Type:
    Dissertation
    Full Text:
    Wengrove, Dr. Michael H. Scott, Dr. Nathan L. Gibson, Dr. Vrushali Bokil, Dr. Abbas Abdollahi, and Dr