Ecosystems and Energy Flow — BIOLOGY STD 12 Science — Question
Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems and Energy Flow5 Marks
Question
Primary succession.
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Answer
Primary succession means the initial development of life on barren piece of land.
Primary succession occurs on newly cooled lava, rocks and newly created pond or reservoir. In a newly formed volcanic island, the life starts and takes up millions of years to develop the whole biomass.
In the successive serai stages, there is a change in the diversity of species of organisms, increase in the number of species and organisms as well as an increase in the total biomass.
The establishment of a new biotic community is generally very slow and takes millions of years.
Primary succession depends on climatic condition, soil characteristics and natural processes.
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