Max Planck Institute for Dynamics and Self-Organization -- Department for Nonlinear Dynamics and Network Dynamics Group
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BCCN Sonderseminar

Wednesday, 29.03.2006 14 s.t.

The role of anomalous phase synchronization in conservation ecology

by Maria Herrojo
from Departamento de Fisica Fundamental, Universidad Nacional de Educacin a Distancia, Madrid, Spain

Contact person: Fred Wolf


Seminarraum Haus 2, 4. Stock (Bunsenstr.)


Migration between patches of a metapopulation leads to the synchronization of local populations, a feature that is considered in the literature associated with conservation ecology to enhance the risk of global extinctions. Nevertheless, most of the previous works focus on the full synchronization regime. Herein we study the effects of the more subtle transition to phase synchronization in the global extinction time. We extend a generic predator-prey model to take into account the discreteness and finiteness of the population, which leads us to a stochastic description. As a result, we show that the regime of anomalous synchronization, characterized by a maximum frequency disorder in the oscillations of the population, is the optimal regime for conservation ecology.

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