APES CHAPTER 8

Community Ecology

Due Date: ______________________________

KEY TERMS

1. commensalism
2. indicator species
3. interspecific competition
4. intraspecific competition
5. keystone species
6. mutualism
7. native species
8. nonnative species/invasive species/alien species
9. parasitism
10. pioneer species
11. predation
12. primary succession
13. secondary succession
14. species diversity
15. species richness
16. theory of island biogeography

CASE STUDY

1. Flying Foxes: Keystone Specie
2. Sharks

OBJECTIVES

1. Describe the three characteristics that define a biological community.

2. Give one example of each: native species, nonnative species, indicator species, and keystone species. Explain why these labels are important.

3. Give examples of the following species interactions: interspecific competition, predation, and symbiosis.

4. Summarize the competitive exclusion principle.

5. List two strategies species use to reduce competition.

6. List at least five strategies that prey use to defend themselves against predators.

7. Give one example of each: parasitism, mutualism, and commensalism.

8. Distinguish between primary and secondary succession.

9. Diagram primary succession; make sure to include examples of organisms that would be present at the different stages.

10. Describe how humans affect communities.

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