The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is generally kept in check by one or more or a combination of some conditions. Which of the following are such conditions?
- Burrowing animals and termites
- Fire
- Grazing herbivores
- Seasonal rainfall
- Soil properties Select the correct answer using the code given below.
Correct Answer: Option C
Savanna ecosystems are characterized by the presence of trees, bushes, and grasses.
Fire: Frequent fires prevent the establishment of forests in savannas by killing tree seedlings and saplings.
Grazing Herbivores: Heavy grazing by herbivores can also limit tree growth, as they consume young trees and prevent them from reaching maturity.
Seasonal Rainfall: Savannas experience distinct wet and dry seasons. The limited rainfall during the dry season restricts tree growth and favors the dominance of grasses.
While burrowing animals and termites can impact local vegetation, they do not generally prevent forest development on a large scale. In some cases, termite mounds can even support more shrubs and trees.
Soil Properties can influence the type of vegetation that grows in an area, they don't generally prevent forest development as much as the other factors listed.
Therefore, fire, grazing herbivores, and seasonal rainfall are key factors that keep forest development in check in savanna ecosystems.
Statement 2, 3, and 4 are correct. Statement 1 and 5 are not correct. Hence, option c is the correct answer.