What is the difference between primary&secondary succession?
Primary succession is the migration of new species into a barren area, while secondary succession takes place where species are already established. Primary succession happens in areas denuded by lava flow, whereas secondary succession takes place when field becomes forest.Time FramePrimary succession usually occurs more slowly than secondary succession because there are fewer nutrients available and species present. Secondary succession sites typically have a base of more organic matter that generates faster growth.FrequencySecondary succession is by far the more common type of ecological succession. Few ecological disturbances wipe out all organic matter, so most sites of succession have an already existing matrix of relationships.ProcessThe first plants to become established in primary succession are lichens and mosses. Plants that arise in secondary succession grow from roots and seeds already present or migrate to the community by animal or wind.ExamplesMoss growing on a stone wal
