Modeling boyciana-fish-human interaction with partial differential algebraic equations
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Updated: Mar 21, 2026

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
Published on: June 1, 2022
Yushan Jiang1, Qingling Zhang2, Haiyan Wang3
1Institute of System Science, Northeastern University, Shenyang, China; School of Mathematics and Statistics, Northeastern University at Qinhuangdao, Qinhuangdao, China.
Abstract:
Under the influence of human population distribution, the boyciana-fish ecological system is considered. First, the system can be described as a nonlinear partial differential algebraic equations system (PDAEs) with Neumann boundary conditions and ratio-dependent functional response. Second, we examine the system's persistence properties: the loacl stabilities of positive steady states, the absorbtion region and the global stability. And the proposed approach is illustrated by numerical simulation. Finally, by using the realistic data collected in the past fourteen years, the PDAEs parameter optimization model is built to predict the boyciana population.
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