On a Predator-Prey Model with Square Root Functional Response

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Authors

  • Kendall H. Bearden Department of Mathematics and Computer Science, Samford University, Birmingham, AL 35229, USA Author
  • Kwadwo Antwi-Fordjour Department of Mathematics and Computer Science, Samford University, Birmingham, AL 35229, USA Author

DOI:

https://doi.org/10.5890/JAND.2026.06.011

Abstract

In this research, we examine a modified Lotka-Volterra predator-prey model with a square root functional response. We have identified a key result regarding the finite-time extinction of the prey species and provided a comprehensive proof to support this finding. An illustrative example is also included to substantiate our theoretical result. Furthermore, our numerical simulations suggest that the phase portrait exhibits two distinct modes of behavior, where certain positive initial conditions result in convergence toward the predator axis in finite time.

References

[1] Beroual, N. and Sari, T. (2020), A predator-prey system with Holling-type functional response, Proceedings of the American Mathematical Society, 148, 5127-5140.

[2] Antwi-Fordjour, K., Parshad, D.R., and Beauregard, A.M. (2020), Dynamics of a predator-prey model with generalized functional response and mutual interference, Mathematical Biosciences, 360, 108407.

[3] Antwi-Fordjour, K., Parshad, R.D., Thompson, H.E., and Westaway, S.B. (2023), Fear-driven extinction and (de)stabilization in a predator-prey model with prey herd behavior and mutual interference, AIMS Mathematics, 8(2), 3353-3377.

[4] Antwi-Fordjour, K., Westmoreland, S.P., and Bearden, K.H. (2024), Dual fear phenomenon in an eco-epidemiological model with prey aggregation, European Physical Journal Plus, 139(6), 518.

[5] Braza, P.A. (2012), Predator–prey dynamics with square root functional responses, Nonlinear Analysis: Real World Applications, 13(4), 1837-1843.

[6] Gause, G.F. (1934), The struggle for existence, Williams & Wilkins, Baltimore, Maryland, USA.

[7] Pal, D., Santra, P., and Mahapatra, G.S. (2017), Predator-prey dynamical behavior and stability with square root functional response, International Journal of Applied and Computational Mathematics, 3, 1833-1845.

[8] Kooijman, S.A.L.M. (2018), Biomass conversion at population level, In: Individual-Based Models and Approaches in Ecology: Populations, Communities and Ecosystems, CRC Press, 338-358.

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PublishedJune 2026

Usage tracking begins September 1, 2026.

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Research Articles

How to Cite

Bearden, K. H., & Antwi-Fordjour, K. (2026). On a Predator-Prey Model with Square Root Functional Response. Journal of Applied Nonlinear Dynamics, 15(2), 401-408. https://doi.org/10.5890/JAND.2026.06.011