GSA Annual Meeting in Denver, Colorado, USA - 2016

Paper No. 312-4
Presentation Time: 2:20 PM

APPROXIMATE BAYESIAN COMPUTATION FOR TRAIT EVOLUTION ON PHYLOGENIES (Invited Presentation)


O'MEARA, Brian C., Ecology and Evolutionary Biology, University of Tennessee, 446 Hesler Biology, Knoxville, TN 37996 and BANBURY, Barbara, Fred Hutch Cancer Research Center, Seattle, WA 98109, bomeara@utk.edu

Phylogenetic models are often limited to those that are mathematically tractable. Here I describe an approximate Bayesian computation (ABC) approach to allow more flexible models to be fitted by simulating up a tree. This approach allows incorporation of interspecific interactions and processes that are heterogeneous in time, such as different processes of trait evolution after a mass extinction. While originally developed for coeval organisms only, the approach is extended to deal with phylogenies including extinct taxa.