Noise Correlation Induced Synchronization in a Mutualism Ecosystem

Details Noise Correlation Induced Synchronization in a Mutualism Ecosystem Noise Correlation Induced Synchronization in a Mutualism Ecosystem

2007-01-21

arxiv.org/abs/q-bio/0701033v1

Biology

Quantitative Biology

Other Quantitative Biology

6pages,4figures

Scientific paper

Understanding the cause of the synchronization of population evolution is an important issue for ecological improvement. Here we present a Lotka-Volterra-type model driven by two correlated environmental noises and show, via theoretical analysis and direct simulation, that noise correlation can induce a synchronization of the mutualists. The time series of mutual species exhibit a chaotic-like fluctuation, which is independent to the noise correlation, however, the chaotic fluctuation of mutual species ratio decreases with the noise correlation. A quantitative parameter defined for characterizing chaotic fluctuation provides a good approach to measure when the complete synchronization happens.

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