Name the pioneer and the climax species in a water body. Mention the changes observed in the biomass and biodiversity of the successive seral communities developing in the water body.

Name the pioneer species on a bare rock. How do they help in establishing the next type of vegetation. Mention the types of climax community that will ultimately get established.

The gradual and predictable change in the species composiiton of a given area is called ecologial succession. What do you understand with the pioneer and climax community in this context?