Ecological Succession

It is the process by which the species that are present in an ecosystem change or vary over time due to the changing environment. This is to say that if any area becomes devoid of living beings after natural calamities, the organisms either migrate to those places later on or the organisms evolve by adapting themselves to the respective environment hence one species can be replaced by other gradually. It is of two types:

• Primary Succession: The soil is unavailable at first in this type. The organisms such as lichen act on the rocks and break them down to form soil, or soil formation can also occur by the phenomenon such as weathering. After that, many species can immigrate or grow over that area forming a climax community.
• Secondary Succession: This succession occurs rapidly as the soil is already formed and different species already have a suitable environment to grow and survive in those areas, eventually forming a climax community.