Food chain chaos with canard explosion

Research output: Contribution to journalArticle

38 Scopus citations


The "tea-cup" attractor of a classical prey-predator- superpredator food chain model is studied analytically. Under the assumption that each species has its own time scale, ranging from fast for the prey to intermediate for the predator and to slow for the superpredator, the model is transformed into a singular perturbed system. It is demonstrated that the singular limit of the attractor contains a canard singularity. Singular return maps are constructed for which some subdynamics are shown to be equivalent to chaotic shift maps. Parameter regions in which the described chaotic dynamics exist are explicitly given.

Original languageEnglish (US)
Pages (from-to)1083-1092
Number of pages10
Issue number4
StatePublished - Dec 2004

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Physics and Astronomy(all)
  • Applied Mathematics

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