Question

Describe the three stage of ecology

Answer 1

Primary succession only occurs after a natural disaster has cleared away life and well-processed soil from an environment. New lava flows, new sand dunes or bare rocks left behind by glaciers are all examples of environments suitable for primary succession. As the species adept at primary succession move in, they start to alter the environment by doing things like breaking down rocks, changing mineral compositions in soil or creating shade.

Secondary succession is not a single change in the species that occur in an environment, but all the transitions in species dominance that occur after primary succession.