An age-structured predator-prey system with diffusion and Holling-Tanner-type nonlinearities is considered. Regarding the intensity of the fertility of the predator as bifurcation parameter, we prove that a branch of positive coexistence steady states bifurcates from the marginal steady state with no prey. A similar result is obtained when the fertility of the prey varies.
@article{arxiv.1002.1786,
title = {Coexistence Steady States in a Predator-Prey Model},
author = {Christoph Walker},
journal= {arXiv preprint arXiv:1002.1786},
year = {2010}
}