What are primary and secondary ecological succession? There are two major types of ecological succession: primary succession and secondary succession. Primary succession happens when a new patch of ...

Primary Succession: The process of ecological change that occurs in an area where no soil exists, such as after a glacier retreats, leading to the establishment of a biological community.

This type of succession is often called primary succession ... of Succession Succession is one of the longest-studied ecological concepts. Henry Cowles was the first ecologist to thoroughly ...