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Ecological Succession

Ecological Succession Ecosystems are constantly changing Ecological succession is a gradual process of change and replacement of the types of species in a community

Primary Succession Primary succession occurs in an area that previously did not support life. Pioneer Species: colonizes an uninhabited area so other species can become established bacteria and lichens most common

Secondary Succession Secondary succession occurs on a surface where an ecosystem has previously existed Partially or totally destroyed Soil is still present Causes: fires, human disturbances, flood

Ecological Succession Analysis 1. What is ecological succession? 2. How is primary succession different from secondary succession 3. What is the first group of organisms to colonize an area called? 4. What kinds of species are able to live on bare rock 5. What situations lead to primary succession 6. What situation lead to secondary succession 7.Think and Predict: A forest fire burns for 6 days in the pine forest. After the fire has settled small grasses begin to grow. This is followed by the growth of small shrubs and trees, and the return of animals. A. What kind of succession is this? B. What might this ecosystem look like in 5 years? C. What might the ecosystem look like in 100 years?

Mock EOC Data Analysis