English

Chimera-Like Coexistence of Synchronized Oscillation and Death in an Ecological Network

Chaotic Dynamics 2015-06-09 v2 Adaptation and Self-Organizing Systems

Abstract

We report a novel spatiotemporal state, namely the chimera-like incongruous coexistence of {\it synchronized oscillation} and {\it stable steady state} (CSOD) in a realistic ecological network of nonlocally coupled oscillators. Unlike the {\it chimera} and {\it chimera death} state, in the CSOD state identical oscillators are self-organized into two coexisting spatially separated domains: In one domain neighboring oscillators show synchronized oscillation and in another domain the neighboring oscillators randomly populate either a synchronized oscillating state or a stable steady state (we call it a death state). We show that the interplay of nonlocality and coupling strength results in two routes to the CSOD state: One is from a coexisting mixed state of amplitude chimera and death, and another one is from a globally synchronized state. We further explore the importance of this study in ecology that gives a new insight into the relationship between spatial synchrony and global extinction of species.

Keywords

Cite

@article{arxiv.1506.00495,
  title  = {Chimera-Like Coexistence of Synchronized Oscillation and Death in an Ecological Network},
  author = {Partha Sharathi Dutta and Tanmoy Banerjee},
  journal= {arXiv preprint arXiv:1506.00495},
  year   = {2015}
}

Comments

5 pages--5 figs; Submitted for publication