Ecological Succession



Ecological Succession Name

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1. Read the descriptions of the example on the ‘succession cards’ hand out. Cut out and glue on in the correct order in which succession occurs on the time line.

|0 ( |0-10 years ( |10-25 years ( |25-100 years ( |100-200 years ( |200-400 years ( |

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2. What is the first stage of succession, after a glacier retreats? Do you think this is an important stage in this example of succession? Explain.

3. This activity shows an example of primary succession. Secondary succession occurs when an existing community has been cleared by some disturbance. Why does primary succession take longer than secondary succession?

4. Give two or three examples of disturbances that could cause secondary succession.

5. A biological community develops after a volcanic island emerges from the ocean. What type of succession has occurred? Why?

6. What are the pioneer populations in this example? What species are in the climax community?

7. How do early species facilitate the arrival of the subsequent species? (Hint – reread cards)

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