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State a Reason for the Increased Population of Dark Coloured Moths Coinciding with the Loss of Lichens (On Tree Barks) During Industrialization Period in England. - Biology

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State a reason for the increased population of dark coloured moths coinciding with the loss of lichens (on tree barks) during industrialization period in England.

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Solution

Industrial melanism was the reason behind the increase in the population of dark-coloured moths along with the loss of lichens during industrialisation in England.
The tree trunks became darker (after industrialisation) with deposits of soot and smoke; hence, the number of dark moths increased as they were not easily visible to their predators while the white-winged ones were easily picked up by the predators. Thus, dark ones were selected by nature (natural selection) and light ones fail to survive.

Concept: Evidence of Organic Evolution
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