Q. Consider the following statements:

1. Ecotone has a low species richness.
2. Ecocline can be easily identified by distinct change in soil gradient and soil composition between two communities.
3. Edge effect refers to the changes in population or community structures that occur at the boundary of two habitats.

Which of the statements given above are correct?
Answer: Only 2 & 3
Notes: Statement 1 is incorrect: Ecotones generally have high species richness due to the mixing of species from both adjoining communities. Statement 2 is incorrect: Ecoclines show gradual changes and are less easily identified by abrupt soil or composition change. Statement 3 is correct: Edge effect is the change in population or community structures at the boundary of two habitats.