Statistical Modeling in Forest Entomology: Space, Time, and Multiple Species
Jun Zhu, Ph.D.

Department of Statistics , University of Wisconsin-Madison

March 24, 2008

4:00 p.m.; 223 Weber


Ecological data in forest entomology often involve multiple species across space and over time.  Of particular interest is the impact of two bark beetle groups on tree mortality and the subsequent gap formation over time in a plantation of Wisconsin.  Traditional Markov random field models are extended to account for both spatial and temporal autocorrelation, as well as multiple response variables.  A Bayesian hierarchical modeling approach is adopted for statistical inference and Markov chain Monte Carlo algorithms are devised for obtaining the posterior distributions of model parameters.  Various modeling issues including model checking will be discussed.




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