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