Conservation Ecology and Ecosystem Services · Zoology

Keystone species are important because they:

  1. Are the most numerically abundant species present
  2. Disproportionately shape ecosystem structure
  3. Are always the ecosystem's top predators
  4. Only exist within legally protected areas
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Correct answer: Disproportionately shape ecosystem structure

Keystone species strongly influence ecosystem composition and function. Their removal can cause major ecological changes.

Difficulty: Medium Question 12 of 20

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