Ecological succession is the process of change in the species structure of an ecological community over time. ... It is a phenomenon or process by which an ecologicalcommunity undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat. Hope this helps
UV intensity predicts the skin color of indigenous populations. Stronger UV radiation is correlated with darker skin color. Data suggest that variation in human skin melanin production arose as different populations adapted biologically to different solar conditions around the world.
