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 and 3
Notes: Statement 1 is incorrect: Ecotones typically have high species richness due to species from adjacent communities. Statement 2 is incorrect: Ecoclines display gradual environmental transitions, not abrupt or easily detectable changes. Statement 3 is correct: Edge effect refers to changes in species or community structures at habitat boundaries, often increasing biodiversity.