Vertical distribution of different species occupying different levels in a biotic community is known as:
Options
(a) Stratification
(b) Zonation
(c) Pyramid
(d) Divergence
Correct Answer:
Stratification
Explanation:
Stratification is the occurrence of vertical zonation in the ecosystem & indicates the presence of favorable environmental conditions, for e.g., trees occupy top vertical strata or layer of a forest, shrubs the second. Herbs & grasses occupy the bottom layers. It is absent or poor where environmental conditions are unfavorable, e.g., desert ecosystems have very few trees & shrubs.