Host-Parasitoid Semi-Discrete Model with Host-Feeding
Using the semi-discrete framework, we address the tendency of parasitoids to feed on host larvae. This figure compares the stability region of the non-zero equilibrium of the semi-discrete model with and without host-feeding when coupled with a density dependent host-mortality. The non-zero equilibrium corresponds to the system that yields coexistence between the host and the parasitoid, which is observed in nature. Host-feeding burdens the parasitoid population since the no-parasitoid equilibrium stability region is larger. Hence, host-feeding causes an inefficiency in the parasitoid's yearly reproductive habits, which yields a higher population of hosts per generation. Find the paper here.