[PDF][PDF] The Complex Dynamics in a Food Chain Involving Different Functional Responses

SJ Ali, AN Atewi, RK Naji - Iraqi Journal of Science, 2022 - iasj.net
SJ Ali, AN Atewi, RK Naji
Iraqi Journal of Science, 2022iasj.net
A food chain model in which the top predator growing logistically has been proposed and
studied. Two types of Holling's functional responses type IV and type II have been used in
the first trophic level and second trophic level respectively, in addition to Leslie-Gower in the
third level. The properties of the solution are discussed. Since the boundary dynamics are
affecting the dynamical behavior of the whole dynamical system, the linearization technique
is used to study the stability of the subsystem of the proposed model. The persistence …
Abstract
A food chain model in which the top predator growing logistically has been proposed and studied. Two types of Holling’s functional responses type IV and type II have been used in the first trophic level and second trophic level respectively, in addition to Leslie-Gower in the third level. The properties of the solution are discussed. Since the boundary dynamics are affecting the dynamical behavior of the whole dynamical system, the linearization technique is used to study the stability of the subsystem of the proposed model. The persistence conditions of the obtained subsystem of the food chain are established. Finally, the model is simulated numerically to understand the global dynamics of the food chain under study.
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