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NEETZoologyOrganisms and Populations

"If two species compete for the same resource, they could avoid competition by choosing different times for feeding or different foraging patterns, thereby promoting co-existence." Identify the ecological concept described above and the classic example associated with it.

Options

  1. ACompetitive release - Connell's field experiments on barnacles
  2. BCompetitive exclusion - Gause's experiments on Paramecium
  3. CInterference competition - Extinction of Abingdon tortoise after introduction of goats
  4. DResource partitioning - MacArthur's study on five closely related species of warblers

Correct answer

D. Resource partitioning - MacArthur's study on five closely related species of warblers

Step-by-step solution

The given description explains the mechanism of 'Resource Partitioning', where species evolve traits that promote co-existence rather than exclusion. According to NCERT, MacArthur showed that five closely related species of warblers living on the same tree were able to avoid competition and co-exist due to behavioural differences in their foraging activities. Competitive release is related to Connell's barnacles, competitive exclusion is related to Gause's principle, and interference competition is demonstrated by

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