Figure 1.

Equilibrium densities $p_{\text{S}}^{*}$ (dots) and $p_{\text{I}}^{*}$ (triangles) for different dispersal rates of infected hosts. Filled symbols: castrating parasite (b_I=0). Open symbols: non-castrating parasite (b_I=4). Note the difference in scale for the densities of hosts infected by castrating versus non-castrating parasites. Parameters as in table 1.