Dynamic Behaviors of a Discrete Two Species Predator-Prey System Incorporating Harvesting

A discrete two species predator-prey captured system is studied. Firstly, a sufficient condition of a positive equilibrium point for this system is obtained. Secondly, we observe that the two nonnegative equilibriums of the system are unstable through the eigenvalue discriminant method, and the posi...

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Main Author: Ting Wu
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2012/429076
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author Ting Wu
author_facet Ting Wu
author_sort Ting Wu
collection DOAJ
description A discrete two species predator-prey captured system is studied. Firstly, a sufficient condition of a positive equilibrium point for this system is obtained. Secondly, we observe that the two nonnegative equilibriums of the system are unstable through the eigenvalue discriminant method, and the positive equilibrium point is asymptotically stable by Jury criterion. Lastly, we obtain the optimal capture strategy of the system from the maximum principle by constructing a discrete Hamiltonian function. To show the feasibility of the main results, a suitable example together with its numerical simulations is illustrated in the last part of the paper. The example with certain practical significance might give an optimal scheme of the greatest economic benefits for the captors.
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spelling doaj-art-86eb2022e90b4683be9dc90ede0f8fd52025-02-03T01:25:23ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2012-01-01201210.1155/2012/429076429076Dynamic Behaviors of a Discrete Two Species Predator-Prey System Incorporating HarvestingTing Wu0Department of Mathematics, Minjiang University, Fujian, Fuzhou 350108, ChinaA discrete two species predator-prey captured system is studied. Firstly, a sufficient condition of a positive equilibrium point for this system is obtained. Secondly, we observe that the two nonnegative equilibriums of the system are unstable through the eigenvalue discriminant method, and the positive equilibrium point is asymptotically stable by Jury criterion. Lastly, we obtain the optimal capture strategy of the system from the maximum principle by constructing a discrete Hamiltonian function. To show the feasibility of the main results, a suitable example together with its numerical simulations is illustrated in the last part of the paper. The example with certain practical significance might give an optimal scheme of the greatest economic benefits for the captors.http://dx.doi.org/10.1155/2012/429076
spellingShingle Ting Wu
Dynamic Behaviors of a Discrete Two Species Predator-Prey System Incorporating Harvesting
Discrete Dynamics in Nature and Society
title Dynamic Behaviors of a Discrete Two Species Predator-Prey System Incorporating Harvesting
title_full Dynamic Behaviors of a Discrete Two Species Predator-Prey System Incorporating Harvesting
title_fullStr Dynamic Behaviors of a Discrete Two Species Predator-Prey System Incorporating Harvesting
title_full_unstemmed Dynamic Behaviors of a Discrete Two Species Predator-Prey System Incorporating Harvesting
title_short Dynamic Behaviors of a Discrete Two Species Predator-Prey System Incorporating Harvesting
title_sort dynamic behaviors of a discrete two species predator prey system incorporating harvesting
url http://dx.doi.org/10.1155/2012/429076
work_keys_str_mv AT tingwu dynamicbehaviorsofadiscretetwospeciespredatorpreysystemincorporatingharvesting