Rhythmogenesis, birhythmicity and chaos in a metapopulation model Ramesh Arumugam, Tanmoy Banerjee and Partha Sharathi Dutta Eur. Phys. J. Special Topics, 226 9 (2017) 2145-2156 Published online: 21 June 2017 DOI: 10.1140/epjst/e2017-70017-5