Negative correlation between host outcrossing rate and change in host mortality in mixed mating populations. Elevated levels of outcrossing are generally correlated with decreases in host mortality rates (R2 = 0.435, F1,8 = 6.166, p = 0.0379). The harmonic mean outcrossing rate of each replicate population was plotted against the mean change in host mortality over two time periods, generations 0 to 10 (filled symbols) and generations 10 to 20 (open symbols), matching symbols indicate the same population measured at the different time points.