Final answer:
Moth wing color distribution would likely change through natural selection of favorable variations, similar to how darker peppered moths were favored during the Industrial Revolution due to better camouflage against soot-covered trees.
Step-by-step explanation:
The change in moth wing color distribution as a result of a fungal infection would most likely occur due to natural selection of favorable variations. Natural selection enhances the survival and reproduction of organisms with traits well-suited to their environments. In the classic example of the peppered moth during the Industrial Revolution in England, darker moths were naturally selected because they could better camouflage against the soot-covered trees, making them less visible to predators. Directional selection occurred, shifting the population's genetic variance towards the darker phenotype. Similarly, if a fungus changes the environment or the appearance of moths, natural selection would favor the moths whose coloration allows them to best avoid predation, leading to a change in color distribution in the moth population over time.