PT Journal AU Botella-Soler, V Oteo, JA Ros, J TI Coexistence of periods in a bifurcation SO Chaos, Solitons & Fractals JI Chaos Solitons Fractals PY 2012 BP 681 EP 686 VL 45 IS 5 DI 10.1016/j.chaos.2011.11.008 LA English AB A particular type of order-to-chaos transition mediated by an infinite set of coexisting neutrally stable limit cycles of different periods is studied in the Varley-Gradwell-Hassell population model. We prove by an algebraic method that this kind of transition can only happen for a particular bifurcation parameter value. Previous results on the structure of the attractor at the transition point are here simplified and extended. ER