Zip bifurcation in a reaction-diffusion system (Q1006351)

The article considers the existence and stability of equilibria of a system of \(n\) predators and a single prey. It is shown, that there exists a \(n-1\)-dimensional hyperplane of static solutions. If some parameter is varied, the system exhibits a so-called ``zip bifurcation''. Unfortunately the definition of this bifurcation cannot be found in the article and there is no hint, what happens after this loss of stability.