Table 1. Parameters used in the compartment model.

Parameter	Range	Description
N	Positive integers	Carrying capacity of the community
CN	[0,N]	Total number of trait carriers in the focal patch
C	[0,1]	Fraction of carriers in the focal patch
r	[0,1]	Rate of gene transfer between trait carriers and non-carriers per generation
s	[0,∞]	Strength of positive selection, given as the fitness increase of allele carriers in the focal patch
m	[0,1]	Migration rate per generation time, given as a fraction of the patch community