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Average genotype frequencies in the model with a frequency-dependent environment, without mutation. The frequencies are displayed according to the value of ch, the cost of bleeding (y axis) and of infection (x axis). The average genotype frequencies across 100 simulations using the HWE-process without mutation, each with 10,000 generations, are displayed. The frequencies are color-coded according to the legend on the right. Stars indicate an excess of homozygotes
