Desimal: Jurnal Matematika
Vol. 8 No. 2 (2025): Desimal: Jurnal Matematika

Memory effects and sustainable harvesting in a fractional-order predator-prey model with prey refuge and nonlinear harvesting

Rahman, Hiwa Hussein (Unknown)
Faraj, Bawar Mohammed (Unknown)



Article Info

Publish Date
15 Jul 2025

Abstract

This study investigates the dynamics of a predator-prey model with fractional-order derivatives, incorporating factors such as prey refuge, nonlinear harvesting, and memory-dependent processes. The model is governed by a coupled system of Caputo fractional differential equations, where prey growth follows logistic dynamics with refuge parameter , and harvesting adopts a generalized nonlinear form. The predator’s functional response follows a Holling type II mechanism modified by prey refuge. We analyze existence, uniqueness, and stability of equilibrium points, along with the influence of fractional-order derivative  on long-term behavior. Numerical simulations reveal that memory effects significantly alter system dynamics, leading to sustained oscillations, enhanced stability, or complex bifurcation patterns compared to classical integer-order models. Furthermore, we explore sustainable harvesting strategies by examining the impact of refuge and harvesting efforts on population persistence. Our findings highlight ecological implications of fractional-order dynamics in predator-prey systems, providing insights into biodiversity conservation and resource management.

Copyrights © 2025






Journal Info

Abbrev

desimal

Publisher

Subject

Education Mathematics Social Sciences

Description

Desimal: Jurnal Matematika, particularly focuses on the main issues in the development of the sciences of mathematics education, mathematics education, and applied mathematics. Desimal: Jurnal Matematika published three times a year, the period from January to April, May to Augustus, and September ...