Introduction
In recent years, harvesting in the prey-predator ecosystem is one of the most important fields of interest. Much research effort [1, 3, 2, 14, 11, 16, 5, 6, 8] has been put into investigating the interaction and coexistence mechanism of the harvested prey-predator ecosystem. A numerical analysis of a harvested prey-predator model is performed in [1], and the model can be expressed as follows:
where x 1(t) and x 2(t) denote populations of the prey 1 and prey 2, respectively; y(t) represents population of the predator; ε i (i = 1,2,3) are intrinsic rates of growth and decay of the three species; a ij (i,j = 1,2,3) with i ≠ j are the inter-species and a ii (i = 1,2) are the intra-species coefficients of competitive interactions; a 13 and a 23 are the coefficients for the loss of prey 1 and prey 2, respectively; a 31 and a 32 are the coefficients for growth in the predator as a result of consumption of prey by them; and H(t) is a harvest function, which represents harvesting strategies applied to the predator.
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Zhang, Q., Liu, C., Zhang, X. (2012). Complex Dynamical Behavior in Bio-economic Prey-Predator Models with Competition for Prey. In: Complexity, Analysis and Control of Singular Biological Systems. Lecture Notes in Control and Information Sciences, vol 421. Springer, London. https://doi.org/10.1007/978-1-4471-2303-3_13
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