Volume 7, Number 2, 2017, Pages 670-680 DOI:10.11948/2017042 |
Dependence of stability of Nicholson's blowflies equation with maturation stage on parameters |
Jianquan Li,Baolin Zhang,Yiqun Li |
Keywords:Nicholson's blowflies equation, stability, maturation delay, parameters. |
Abstract: |
The stability of Nicholson's blowflies equation with maturation stage is investigated by reducing the number of parameters in the original model. We derive the condition on the stability of the positive equilibrium of the model, and discuss the dependence of the stability on the parameters by analyzing geometrically the dependence of real parts of eigenvalues of the characteristic equation with fewer parameters on the parameters. By restoring parameters, the condition on the stability of the positive equilibrium of the original model are formulated explicitly, and the corresponding regions are depicted for some different cases. The obtained result shows that the parameter determining the maximum reproductive success of the population affects only the size of the positive equilibrium, but plays no role in determining its stability. |
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