Appendix A. The conditions for extinction and persistence in a model with linear functional responses, the parameter space leading to alternative equilibria in this linear response model, and the responses of populations and yields to harvesting in models with type-2 functional responses.

The conditions for extinction and persistence in a model with linear functional responses, the parameter space leading to alternative equilibria in this linear response model, and the responses of populations and yields to harvesting in models with type-2 functional responses.