Chaos Control and Bifurcations in a Modified Discrete Prey-Predator Model with Weak Multiple Allee Effect


KANGALGİL F., ALTUNKAYNAK M.

International Journal of Bifurcation and Chaos, cilt.35, sa.10, 2025 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 35 Sayı: 10
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1142/s021812742550124x
  • Dergi Adı: International Journal of Bifurcation and Chaos
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC, MathSciNet, zbMATH
  • Anahtar Kelimeler: Prey-predator model, stability, weak multiple Allee effect
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This study explores the local dynamics of a discrete-time prey-predator model, which has been modified to include a weak multiple Allee effect on the prey population. The investigation encompasses topological categorization, bifurcation analysis, and chaos control. The analysis reveals that the model exhibits flip bifurcation and Neimark-Sacker bifurcation within a narrow vicinity of the coexistence equilibrium point, as demonstrated through bifurcation theory. Furthermore, the direction of these bifurcations is elucidated. To stabilize chaos resulting from the bifurcation, the OGY method is employed. Numerical simulations are conducted to validate the theoretical findings, with maximum Lyapunov exponents indicating the probability of chaos in the model.