The European Physical Journal Special Topics

, Volume 227, Issue 7–9, pp 971–981 | Cite as

Bifurcations, chaos and synchronization of a predator–prey system with Allee effect and seasonally forcing in prey’s growth rate

  • Afef Ben Saad
  • Olfa Boubaker
Regular Article
Part of the following topical collections:
  1. Nonlinear Effects in Life Sciences


In this paper, a predator–prey model with Allee effect and seasonally forcing in the prey’s growth rate is introduced and analysed. Nonlinear analysis, using equilibrium points computed via Symbolic Math software tools, bifurcation diagrams, phase diagrams, Lyapunov exponents and Kaplan–Yorke dimension, proves that such effects lead to undesirable biological dynamics including chaos behaviours. In order to establish a certain balance in the ecosystem and avoid chaotic dynamics, the biological system is controlled in order to follow an unforced reference model via a synchronization approach. Simulation results prove the efficiency of the proposed approach to allow the predator–prey system regaining natural dynamics.


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Copyright information

© EDP Sciences and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.National Institute of Applied Sciences and Technology, INSATTunis CedexTunisia

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