Chaotic waves and phase synchronization in spatially extended ecological systems

Blasius, Bernd; Stone, Lewi
February 2000
AIP Conference Proceedings;2000, Vol. 502 Issue 1, p221
Academic Journal
An ecological population model is presented for exploring complex synchronization phenomena in biological systems. The model describes a three level predator-prey-resource system which oscillates with Uniform Phase evolution yet has Chaotic Amplitudes (UPCA). We investigate the phase synchronization of two nonidentical diffusively coupled models, and a two dimensional lattice of chaotic population models coupled via nearest neighbors. With weak coupling, a collective phase synchronization emerges, and for the spatially extended system this gives rise to a circular travelling wave structure where population abundances remain chaotic and uncorrelated. © 2000 American Institute of Physics.


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