Sometimes due to biotic/abiotic factor the climax remain in a particular serai stage (pre climax) without reaching climax. Do you agree with this statement? If yes, give a suitable example.

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Solution

It is true that any change in the abiotie/biotic factor will arrest a particular serai stage leading to a pre-climax condition before the climax stage si achieved. This can happen in cases of forest fires, landslide, changes in soil characteristics, increase in herbivore population leading to overgrazing.

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III. Phytoplankton->Rooted aquatic plants->Free floating stage->Reed swamp stage-> wood land stage-> Sedge Meadow stage-> Climax forest

Iv. Phytoplankton->Rooted aquatic plants->Rooted floating stage->Reed swamp stage->Sedge Meadow stage-> wood land stage-> Climax forest.

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I. Rooted aquatic plants-> phytoplankton->Free floating stage->Reed swamp stage-> Climax forest-> wood land stage-> Sedge Meadow stage

II. Rooted aquatic plants-> wood land stage->Rooted floating stage-> Sedge Meadow stage-> Reed swamp stage-> phytoplankton-> Climax forest

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