Chapter 2 Section 2

1. Chapter 2 Section 2 succession

2. Succession • Gradual development of a community over time • Two types: • Primary • Secondary

3. Primary Succession • Growth in a place where no other growth has occurred before • Generally no soil • Begins on bare rock

4. Stages of Primary Succession • Lichens are usually first. These are pioneer species • Acid from lichens break down rock into soil • Mosses grow replacing lichens • Ferns grow replacing mosses • Grasses grow replacing ferns • Wildflowers, small trees, and shrubs begin to grow • Soil gets deep enough to support forests

5. Lichens Ferns Moss Wildflowers and grasses Softwoods Hardwoods

8. Secondary Succession • Takes place after an existing community is destroyed or abandoned and the soil is still intact • Crabgrass grows first • New weedy plants like horseweed grows • Small bushes and trees grow – softwoods ex. pine • Hardwoods (ex. Oak) replace softwoods

9. Horseweed Crabgrass Softwoods and shrubs Hardwoods

11. Ad Campaign • Create a logo

12. Ad Campaign • Create a slogan • Like a good neighbor • We’ll leave the light on • When it absolutely, positively has to be there overnight • Made from the greatest stuff on earth • Head for the border • Get the sensation

13. Ad Campaign • Create a print ad