The relationship between the coevolutionary sensitivities used to simulate data (X axis) and the values of these parameters estimated by our ABC method (Y axis) for scenarios where independent estimates of background parameters are unavailable, necessitating the use of relatively broad prior distributions.

The left-hand column shows results for cases where only 5 populations have been sampled, the center column cases where 10 populations have been sampled, and the right column cases where 20 populations have been sampled. Red points indicate parameter estimates for which the associated credible interval did not include zero. Black points indicate parameter estimates with credible intervals overlapping zero. The solid black line is the best linear fit and the dashed gray line is the perfect one to one relationship expected if all estimates were equal to their true values.