Beneficial role of noise in promoting species diversity through stochastic resonance

Ying-Cheng Lai

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12 Citations (Scopus)


There is an increasing recognition that patterns in species diversity cannot be understood without reference to nonequilibrial or unstable dynamics. Recently, through a realistic ecological model that involves dispersal, we have addressed the positive role of noise in promoting species coexistence [Phys. Rev. Lett. 94, 038102 (2005)]. Here we present a physical theory to account for the main scaling law responsible for this phenomenon.

Original languageEnglish
Article number042901
Number of pages4
JournalPhysical Review. E, Statistical, Nonlinear and Soft Matter Physics
Issue number4
Publication statusPublished - Oct 2005


  • on-off intermittency
  • symmetry-breaking bifurcation
  • coupled-oscillator systems
  • chaotic dynamical systems
  • attractors
  • mechanisms

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