Ecological succession is the process of change in the species structure of an ecological community over time. The community begins with relatively few pioneering plants and animals and develops stages of ecological succession pdf increasing complexity until it becomes stable or self-perpetuating as a climax community.
The “engine” of succession, the cause of ecosystem change, is the impact of established species upon their own environments. A consequence of living is the sometimes subtle and sometimes overt alteration of one’s own environment. It is a phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat. Succession may be initiated either by formation of new, unoccupied habitat, such as from a lava flow or a severe landslide, or by some form of disturbance of a community, such as from a fire, severe windthrow, or logging.