Ecosystem Succession

Just one of the amazing aspects of life on Earth is that it spreads to all areas where the habitat will allow it to survive. In hostile environments, where the soil is infertile, and therefore cannot sustain life in a sustainable fashion, small plants and bacteria begin to colonize the area, which recognizes the area as a new ecological niche without competition.

While these small organisms begin to occupy the area, the pioneers, the organisms that first colonized the area begin to die out. This essential process allows the dead mass to decompose into the ground, and essentially provide nutrients to plants that continue to live in the habitat. Now that there are more nutrients available in the local environment, larger species are able to be supported, and this process can have a multiplying effect over the longer term. This process is called succession.

Succession usually occurs in areas where no other species offer competition in the area. Succession, however, can occur in changing climates, where less suited species give way to the more evolutionary adapted species of the area. In a more stable environment, a climax community develops, the climax being that the community stays in a relative equilibrium over a long period of time. Succession is no longer an issue as the most advanced species have established their presence and lesser organisms cannot compete.

The type of organisms that occupy areas in such circumstances depends on a number of factors. These factors are as follows: