Is it possible that productivity and diversity of a natural community remain constant over some time, say one hundred years?
A climax community is a community in which productivity and diversity are constant. It takes millions of years for a community to progress from the primary stage to the climax stage. A period of one hundred years is just a small part of the timeline of community succession. Hence, in most of the cases, a community can easily maintain constancy of productivity and diversity over a time of hundred years.