Table 1. Parameter definitions and default values.

Symbol(s) Definition Default value(s)
gi Resource regeneration rates g1 = 1, g2 = 0.33, gb = 0.1
Ki Resource carrying capacities Ki = 100 for all i
qi Resource harvestability q1 = 0.1, q2 = 0.07, qb = 0.03
am Migration sensitivity to consumption am = 4
bm Migration transaction cost threshold bm = 1
ag Population growth sensitivity to consumption ag = 1
bg Consumption threshold for positive population growth bg = 5
rg Intrinsic population growth rate rg = 0.01