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Ecological Succession

Ecological Succession. Warm up…. What is succession? In what types of areas does succession occur? Is succession a good thing, a bad thing, or both? Explain. Gradual development of a community over time following predictable stages Primary or secondary. Primary Succession.

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Ecological Succession

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  1. Ecological Succession

  2. Warm up… • What is succession? • In what types of areas does succession occur? • Is succession a good thing, a bad thing, or both? Explain.

  3. Gradual development of a community over time following predictable stages • Primary or secondary

  4. Primary Succession • Begins in a place without any soil • Arrival of PIONEER SPECIES • lichens, etc. do not need soil to survive http://botit.botany.wisc.edu http://www.saguaro-juniper.com/

  5. Soil forms • Weathering and erosion break down rocks, decomposition or organic material http://www.life.uiuc.edu

  6. Simple plants grow • Mosses then later ferns http://uisstc.georgetown.edu http://www.uncw.edu

  7. Grasses, wildflowers, other plants begin to grow http://www.cwrl.utexas.edu

  8. Shrubs and trees grow http://www.rowan.edu

  9. Insects, small birds, and mammals move in http://p2-raw.greenpeace.org

  10. Secondary Succession • In a place that has soil & living organisms • Example: after forest fires • Faster • Different pioneer species

  11. http://www.geo.arizona.edu

  12. http://www.ux1.eiu.edu

  13. http://www.agen.ufl.edu

  14. Climax Community • End result of succession • Stable group of plants and animals • Not necessarily big trees • Ex: grasses in prairies, cacti in deserts

  15. Sequencing Succession • Put the pictures on your desk in order from the beginning to the end of the succession sequence • Decide if it is primary or secondary succession • Explain the process

  16. Compare and contrast Primary and Secondary succession • What are the conditions? • How long does it take? • What does it start with? • What are the pioneers?

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