Question

What was the reason for co-existence of five closely related species of warblers?

• A. Competitive exclusion
• B. Resource partitioning
• C. Parasitism
• D. Commensalism

Hint:

Resource partitioning reduces competition and allows species with similar needs to coexist.

Answer 1

The Correct Option is B

Step 1: Concept of species co-existence.
Closely related species often compete for similar resources. However, they can coexist if they use resources differently.
Step 2: Case of warblers.
MacArthur studied warblers in spruce trees and found that five species coexisted because they utilized different parts of the same tree, thus minimizing competition.
Step 3: Conclusion.
This phenomenon is called resource partitioning, allowing species to coexist.