Noise-induced synchronization in multitrophic chaotic ecological systems

Daihai He, Lewi Stone, Bernard Cazelles

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


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
Issue number6
Publication statusPublished - 1 Jan 2010
Externally publishedYes


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

ASJC Scopus subject areas

  • Modelling and Simulation
  • Applied Mathematics


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