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Differentiate between primary and secondary succession. Provide one example of each.

Accepted Answer

Differences between primary succession and secondary succession are as follows: S. No. Primary succession Secondary succession 1. It occurs in the bare land Secondary succession occurs in land denuded recently. 2. No soil is present at the beginning of primary succession Soil is present at the beginning of secondary succession. 3. Humans is absent in the beginning Humans is present from the betginning. 4. Pioneer community comes from outside Pioneer community develops partly from previous occupants and Partly from migrants. 5. Seral communities are many Seral communities are a lew. 6. It takes a long time for completion, 1000 Years or more, e.g. bare land It takes less time for completion,50-200years,e.g. grass burnt land.

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S. No.	Primary succession	Secondary succession
1.	It occurs in the bare land	Secondary succession occurs in land denuded recently.
2.	No soil is present at the beginning of primary succession	Soil is present at the beginning of secondary succession.
3.	Humans is absent in the beginning	Humans is present from the betginning.
4.	Pioneer community comes from outside	Pioneer community develops partly from previous occupants and Partly from migrants.
5.	Seral communities are many	Seral communities are a lew.
6.	It takes a long time for completion, 1000 Years or more, e.g. bare land	It takes less time for completion,50-200years,e.g. grass burnt land.

Ecosystems — BIOLOGY STD 12 Science — Question

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