In England after industrialisation, the population of dark winged moths were more favoured than white winged moth. Explain.
Ans.
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Industrial Pollution: The widespread industrialization in England led to increased pollution, particularly from coal soot. This pollution darkened the environment, making it advantageous for dark-winged moths to blend in with their surroundings.
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Camouflage Advantage: In areas with high levels of industrial pollution, light-colored objects, including white-winged moths, stood out against the darkened environment. Conversely, dark-winged moths had better camouflage and were less visible to predators, providing them with a survival advantage.
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Increased Predation on White-winged Moths: With the change in environmental conditions, predators could more easily spot and prey upon white-winged moths, leading to higher mortality rates among this population.
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Differential Reproduction: As dark-winged moths had a higher survival rate due to their better camouflage in polluted environments, they were more likely to reproduce and pass on their dark coloration traits to offspring, leading to an increase in the frequency of dark-winged moths in the population over time.
