Chaos control via feeding switching in an omnivory system

Joydev Chattopadhyay, Nikhil Pal, Sudip Samanta, Ezio Venturino, Q. J A Khan

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Tanabe and Namba (Ecology, 86, 3411-3414) studied a three species Lotka-Volterra model with omnivory and explored that omnivory can create chaos. It is well documented that predator switching is a similar biological phenomenon to omnivory and likely to occur simultaneously. In the present paper, the tri-trophic Lotka-Volterra food web model with omnivory and predator switching is re-investigated. We observe that if we incorporate predator switching in the system and the intensity of predator switching increases above a threshold value, then the system will be stable from chaotic dynamics. To study the global dynamics of the system extensive numerical simulations are performed. Our analytical and numerical results suggest that predator switching mechanism enhances the stability and the persistence of a food chain system.

Original languageEnglish
Pages (from-to)18-24
Number of pages7
JournalBioSystems
Volume138
DOIs
Publication statusPublished - Dec 1 2015

Keywords

  • Chaos
  • Omnivory
  • Predator switching
  • Stability
  • Three-species Lotka-Volterra model

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Applied Mathematics
  • Modelling and Simulation
  • Statistics and Probability

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