Advertisements
Advertisements
प्रश्न
Explain the progress of ecological succession in newly formed volcanic island.
Advertisements
उत्तर
- Primary succession starts at places where no living organisms were present before like a newly formed volcanic island.
- Before a biotic community of diverse organisms can be established, there must be soil. Depending mostly on climate, it takes natural processes, several hundred to several thousand years to produce fertile soil on bare rock.
- The species which invade a bare area and initiate the succession are called pioneer species. Crustose lichen grows on the rocks which secretes acid to dissolve rock. This helps in weathering of rocks and formation of soil.
- These conditions become favourable for the next community i.e. bryophytes and mosses take hold of the small amount of soil.
संबंधित प्रश्न
Growth of new grasses and shrubs on a patch of forest burnt down by forest fire, is a an example of ______.
What are species that invade a bare area known as?
In what state is the climax community?
Development of communities on ______ is termed as primary succession.
Where is xerarch succession commonly observed?
Identify the CORRECT statement with respect to ecological succession.
Identify the condition which does not lead to secondary succession.
The INCORRECT sequence of ecological succession is.
Transformation of a region from a pool of water to swamp then to marsh and then to mesic condition is an example of ____________.
Climax stage is achieved quickly in secondary succession as compared to primary succession. Why?
