Summary of notation

Loci, contexts, positions, and sets of positions
i	A single locus i
i	A single position at locus i
ifm	The position at the i locus that is found in a female and inherited from her father
A	A set of positions
Af	A set of positions in females
U	A set of loci
P	The set of positions that affect the female preference
T	The set of positions that affect the male trait
H	The set of positions that affect hybrid fitness but not the male trait or female preference
Summations and products
∑i∈A	A sum over all positions i in the set A
∑U⊆A	A sum over all subsets U of the set A, including the set A itself and the empty set Ø
∏i∈A	A product over all positions i in the set A
Allele frequencies
pi	The frequency of the 1 allele at the position i on the island
	The equilibrium frequency of the 1 allele on the island
pC	The equilibrium frequency of the 1 allele on the continent
Δp	The change in the allele frequency during one generation
dA	, the allele frequency divergence between the continent and island
Phenotypes, fitnesses, and selection
P	The preference of a particular female on the island
	The average preference in females on the island
	The equilibrium value of the preference in females on the island
PC	The average preference in females on the continent at equilibrium
Z	The value of the ecological trait on the island
ZC	The value of the ecological trait on the continent
	The equilibrium value of the ecological trait on the island
bi	The difference in the preference of carrying allele 1 rather than allele 0 at position i
ζi	Equals qi if the female carries allele 1 at position i and −pi otherwise
aA	The selection coefficient for the set of positions A
s	A traditional selection coefficient
β	The strength of directional selection on the island
Γ	The strength of disruptive selection on the island
Associations
DAi	The association among the positions in the set Ai at the start of the generation
	The association among the positions in the set Ai after migration
Miscellaneous
rkl	The probability that recombination will break up the loci k and l
m	The proportion of newly arrived migrants on the island, just after migration
I	The effect on reinforcement due to selection on the hybrid incompatibility loci
M	The effect on reinforcement due to selection on the male trait loci
FP	The proportion of female preference genes found in females