NONCONSTANT POSITIVE SOLUTIONS TO THE RATIO-DEPENDENT PREDATOR-PREY SYSTEM WITH PREY-TAXIS IN ONE DIMENSION

Resorting to M.G. Crandall and P.H. Rabinowitz's well-known bifurcation theory we first obtain the local structure of steady states concerning the ratio-dependent predator-prey system with prey-taxis in spatial one dimension, which bifurcate from the homogeneous coexistence steady states when treating the prey-tactic coefficient as a bifurcation parameter. Based on this, then the global structure of positive solution is established. Moreover, through asymptotic analysis and eigenvalue perturbation we find the stability criterion of such bifurcating steady states. Finally, several numerical simulations are performed to show the pattern formation.

Automated summary

Using bifurcation theory, this study investigates the local and global structures of steady states in a ratio-dependent predator-prey system with prey-taxis. The stability criteria for these bifurcating steady states are determined through asymptotic analysis and eigenvalue perturbation. Numerical simulations are utilized to illustrate pattern formation.