PDF Ecological Succession Lab

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´╗┐Ecological Succession Lab

INTRODUCTION: Ecosystems are constantly changing in response to natural and human disturbances. As an ecosystem changes, older inhabitants gradually die out and new organisms move in, causing further changes in the community. This series of predictable changes that occurs in a community over time is called ecological succession.

MATERIALS: 1. 2 diagrams 2. Glue stick 3. Scissors

PROCEDURES: 1. Cut along the lines on the 2 diagrams. 2. Mix the pieces together. 3. Arrange the primary succession diagram in the correct order. 4. Glue them in the proper order on your paper (under the label primary succession). 5. Arrange the secondary succession diagram in the correct order. 6. Glue them in the proper order on your paper (under the label secondary succession). 7. Answer the questions.

DATA: Primary Succession: (paste data on your own paper)

Secondary Succession: (paste data on your own paper)

CONCLUSION QUESTIONS: 1. What is ecological succession? 2. How are primary and secondary succession different? 3. How are primary and secondary succession the same? 4. What is the first group of organisms to colonize an area called? 5. What species is able to live on bare rock? 6. List the communities in a successional sequence of primary succession? 7. List the communities in a successional sequence of secondary succession? 8. What is the first species in secondary succession? 9. Why does primary succession take longer than secondary succession? 10. List some events that would start primary succession? 11. List some events that would start secondary succession?

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