KEY CONCEPT Ecological succession is a process of change in the species that make up a community.

Succession occurs following a disturbance in an ecosystem. Succession regenerates or creates a community after a disturbance. a sequence of biotic changes damaged communities are regenerated new communities arise in previously uninhabited areas

There are two types of succession. Primary succession — the establishment and development of an ecosystem in an area that was previously uninhabited. Started by pioneer species such as lichens and mosses (need to make soil) New environments such as retreating glaciers, hotspots

Secondary succession — the reestablishment of a damaged ecosystem where the soil is left in tact. Started by remaining species after a disaster recovery is faster than primary succession.

Everglades