Noise-induced synchronization in multitrophic chaotic ecological systems

Daihai He*, Lewi Stone, Bernard Cazelles

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Noise-induced synchronization is an unexpected phenomenon which we show here to have biological relevance for multitrophic ecological systems. We focus on two uncoupled HastingsPowell systems having oscillatory dynamics. Despite the fact the systems are uncoupled, it is shown that they can nevertheless synchronize by applying common Gaussian noise forcing to a suitably chosen variable in both systems. Complete synchronization is studied in the case of identical oscillators, and intermittent synchronization is analyzed when the oscillators are nonidentical. We discuss how this unusual synchronization phenomenon has features akin to Ecology's well-known "Moran effect."

Original languageEnglish
Pages (from-to)1779-1788
Number of pages10
JournalInternational Journal of Bifurcation and Chaos
Volume20
Issue number6
DOIs
StatePublished - Jun 2010

Funding

FundersFunder number
Institut of Complex Systems
James S. McDonnell Foundation

    Keywords

    • Chaos
    • Ecological models
    • Food chain models
    • Moran effect
    • Noise-induced synchrony
    • Synchrony

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