Fig. 5. (A): Equilibrium resource density in Regions 1 and 2 (blue and red lines, respectively) as a
function of g2 with and without migration (dashed and solid lines, respectively), with all other parameters held constant. (B): Equilibrium human population density as a function of g2, with all other parameters held constant (same color and line type interpretation as in A). (C)–(D) : Equilibrium resource and population density, respectively, in Regions 1 (blue), 2 (red), and b (green) as a function of q2 with migration.