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Chapter 6, Lesson 6 - How Ecosystems Change

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Chapter 6, Lesson 6 - How Ecosystems Change

  1. 1. How Ecosystems Change Chapter 6, Lesson 6 ecological succession primary succession secondary succession pioneer species pioneer community climax community
  2. 2. ecological succession – the gradual replacement of one community by another
  3. 3. primary succession – the gradual build up of a community that was wiped out
  4. 4. secondary succession – the gradual replacement of one community by another, but there is already some ecosystem/community there
  5. 5. secondary succession – the gradual replacement of one community by another secondary succession – the gradual replacement of one community by another, but there is already some ecosystem/community there
  6. 6. ecological succession – the gradual replacement of one community by another
  7. 7. pioneer species – the first species to grow in an otherwise lifeless area
  8. 8. pioneer community – when the first animals in a community arrive as a result of a pioneer species. A new ecosystem forms.
  9. 9. pioneer community – when the first animals in a community arrive as a result of a pioneer species. A new ecosystem forms.
  10. 10. climax community – an established community. Few new organisms arrive, few leave. Things are relatively safe and balanced, until another major disaster arises.

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