Answer:
Succession
Step-by-step explanation:
Succession could either happen naturally or because of external intervention. Succession that happen naturally is influenced by genetic mutation that make a certain type of species become more adaptable to the new environment, creating a change of composition in that environment.
Succession that happen because of external factors occurs without the control of community members. ?For example, this might happen when humans decided to cut down the trees in a forest that cause many types of organisms to migrate to another place.