It affects the new population that survived by decreasing the genetic diversity of the population. So, the correct option is B.
What do you mean by Genetic diversity?
Genetic diversity may be defined as the number of different alleles of genes living in a population at a given time.
It is clearly visible in the picture that the genetic diversity is reduced after the forest fire. The black dots become extinct in the population of birds, while the number of white and gray dots has also declined.
The number of individuals will surely increase in the future, but genetic diversity might be hardly maintained in the coming time, as the black dot is completely become extinct due to the activity of fire.
Therefore, it affects the new population that survived by decreasing the genetic diversity of the population.
To learn more about Genetic diversity, refer to the link:
https://brainly.com/question/21677396