The process by which a bare rock surface in a tropical region is gradually colonized by organisms, eventually leading to the development of a stable forest community, is called

Primary succession occurs when organisms colonize a previously lifeless area such as bare rock, where no soil exists. Secondary succession occurs in areas where a community has been disturbed but soil remains. Ecological regression is not a standard ecological term, and climatic climax refers to the final stable community, not the process of colonization.