Stability and Bifurcation Analysis of a Three-Species Food Chain Model with Delay

Nikhil Pal, Sudip Samanta, Santanu Biswas, Marwan Alquran, Kamel Al-Khaled, Joydev Chattopadhyay

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

In the present paper, we study the effect of gestation delay on a tri-trophic food chain model with Holling type-II functional response. The essential mathematical features of the proposed model are analyzed with the help of equilibrium analysis, stability analysis, and bifurcation theory. Considering time-delay as the bifurcation parameter, the Hopf-bifurcation analysis is carried out around the coexisting equilibrium. The direction of Hopf-bifurcation and the stability of the bifurcating periodic solutions are determined by applying the normal form theory and center manifold theorem. We observe that if the magnitude of the delay is increased, the system loses stability and shows limit cycle oscillations through Hopf-bifurcation. The system also shows the chaotic dynamics via period-doubling bifurcation for further enhancement of time-delay. Our analytical findings are illustrated through numerical simulations.

Original languageEnglish
Article number1550123
JournalInternational Journal of Bifurcation and Chaos
Volume25
Issue number9
DOIs
Publication statusPublished - Aug 8 2015

Keywords

  • bifurcation
  • center manifold theorem
  • chaos
  • delay
  • numerical simulation
  • Tri-trophic food chain

ASJC Scopus subject areas

  • Applied Mathematics
  • General
  • Engineering(all)
  • Modelling and Simulation

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