NEET BIOLOGY

Detailed explanation-1: -Succession refers to a directional, predictable change in community structure over time (Grime 1979, Huston & Smith 1987). This change is due to shifts in the presence and relative abundance of different species as time passes over years to centuries.

Detailed explanation-2: -By Max Witynski. Ecological succession is the process by which the mix of species and habitat in an area changes over time. Gradually, these communities replace one another until a “climax community”-like a mature forest-is reached, or until a disturbance, like a fire, occurs.

Detailed explanation-3: -The early ecologists who first studied succession thought of it as a predictable process in which a community always went through the same series of stages. They also thought that the end result of succession was a stable, unchanging final state called a climax community, largely determined by an area’s climate.

Detailed explanation-4: -The 5 stages of succession are Nudation, Invasion, Competition and Co-action, Reaction, and Climax or Stabilization. At the same location, a succession of biotic communities naturally emerge one after another until the Climax stage is reached.

Detailed explanation-5: -Succession will not follow a predictable sequence if the climax community was a relict of past climatic and soil conditions. Instead, a new form of community that is more appropriate to the new conditions appears after destruction of the relict community.