Question:
Assertion (A): Closely related species of warbler birds co-exist on the same tree.
Reason (R): The behavioral differences in their foraging activities exhibit competitive release.
Assertion (A): Closely related species of warbler birds co-exist on the same tree.
Reason (R): The behavioral differences in their foraging activities exhibit competitive release.
Show Hint
Resource partitioning = sharing resources; Competitive release = expanding niche after competitor is gone.
Updated On: Jun 10, 2026
- Both (A) and (R) are true. (R) is the correct explanation for (A)
- Both (A) and (R) are true. (R) is not the correct explanation for (A)
- (A) is true. But (R) is false
- (A) is false. But (R) is true
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The Correct Option is C
Solution and Explanation
Step 1: Concept
Resource partitioning in ecology (MacArthur's warblers).
Step 2: Analysis
The assertion is true: warblers coexist through resource partitioning. The reason is false: the mechanism is "resource partitioning" to avoid competition, not "competitive release," which refers to an increase in niche breadth when a competitor is removed.
Step 3: Conclusion
Assertion is true, but the reason is incorrect.
Final Answer: (C)
Resource partitioning in ecology (MacArthur's warblers).
Step 2: Analysis
The assertion is true: warblers coexist through resource partitioning. The reason is false: the mechanism is "resource partitioning" to avoid competition, not "competitive release," which refers to an increase in niche breadth when a competitor is removed.
Step 3: Conclusion
Assertion is true, but the reason is incorrect.
Final Answer: (C)
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