Applied and Interdisciplinary Mathematics Seminar

University of Michigan

Winter 2007
Friday, 9 March, 3:10-4:00pm, 1084 East Hall

Cycles in Discrete-Time Stochastic Population Systems

Shandelle M. Henson

Andrews University


Abstract

Stochastic time series obtained from Tribolium (flour beetle) populations typically suggest cyclic dynamics. We will consider some general existence/uniqueness theorems for the bifurcation of cycles in discrete-time dynamical systems, and then we will look at a variety of ways in which cycles can arise in a general model for the Tribolium genus. We will observe time series from several species of Tribolium to determine whether or not such cycles can be identified in noisy ecological data.