What has undergone succession?

Succession refers to the process of change in the species structure of an ecological community over time. This can occur in various contexts, such as after a disturbance like a forest fire, where pioneer species colonize the area first, followed by more complex ecosystems developing over time. Another example is the gradual transformation of a bare rock surface into a mature forest through primary succession. Secondary succession can occur in previously inhabited areas that have been disturbed, like abandoned agricultural fields regaining their natural vegetation.