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Activity Number:
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185
- SPEED: Environmental Statistics
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Type:
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Contributed
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Date/Time:
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Monday, July 31, 2017 : 11:35 AM to 12:20 PM
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Sponsor:
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Section on Statistics and the Environment
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Abstract #325220
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Title:
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Extreme Value Based Methods for Modeling Elk Dispersal
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Author(s):
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Dhanushi Wijeyakulasuriya* and Ephraim M Hanks and Benjamin A Shaby
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Companies:
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Pennsylvania State University and The Pennsylvania State University and Penn State University
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Keywords:
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spatial extremes ;
elk dispersal
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Abstract:
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The dispersal of elk in Yellowstone National Park is an important driver in the spread of the infectious disease Brucellocis through both elk and cattle. Elk movement shows both heavy-tailed dispersal behavior and nonuniform habitat selection as elk avoid high elevations during the winter months. We model both phenomena jointly by proposing an extreme value distribution model for heavy-tailed elk dispersal, modeled either using spliced or mixture distributions for dispersal distance. This dispersal model is paired with a resource selection function approach for elk habitat preference. We apply this approach to 700 elk-years of elk movement, and explore possible spread of infectious disease through Yellowstone National Park model through simulation studies.
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Authors who are presenting talks have a * after their name.
