Table 1. Definitions of the parameters and symbols used in the model.
| Parameter | Description |
| m | migration rate |
| lCI | level of cytoplasmic incompatibility |
| F | fecundity reduction of infected females |
| T | transmission rate of Wolbachia |
| S | viability selection coefficient at locus T |
| a 1; a 2 | mating preference strength coefficient |
| T 1; T 2 | alleles at male trait locus T |
| P 1;P 2 | alleles at mating preference locus P |
Note that on the island individuals with genotype T 2 have a (1+s)-times higher probability to survive than T 1 individuals. Furher, females of genotype P 2 mate a 2 times more often with T 2 males than with T 1 males. In our simulations P 1 females show no mating discrimination (a 1 = 1).