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Ecosystems · Botany

The Competitive Exclusion Principle states that:

  1. Two species can share the exact same niche indefinitely.
  2. Two species competing for the same limiting resource cannot coexist in the same niche.
  3. The larger species will always win a competition.
  4. Predators always exclude prey from an ecosystem.
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Correct answer: Two species competing for the same limiting resource cannot coexist in the same niche.

This principle suggests that if two species have identical niches, one will eventually be more efficient at utilizing resources and drive the other to local extinction or evolutionary change.

Difficulty: Medium Question 17 of 20

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