Ecological succession
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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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Warm up
Warm up…

  • What is succession?

  • In what types of areas does succession occur?

  • Is succession a good thing, a bad thing, or both? Explain.



Primary succession
Primary Succession predictable stages

  • 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/


  • Soil forms predictable stages

    • Weathering and erosion break down rocks, decomposition or organic material

http://www.life.uiuc.edu


http://uisstc.georgetown.edu

http://www.uncw.edu


http://www.cwrl.utexas.edu


http://www.rowan.edu


http://p2-raw.greenpeace.org


Secondary succession
Secondary Succession predictable stages

  • In a place that has soil & living organisms

    • Example: after forest fires

  • Faster

  • Different pioneer species


http://www.geo.arizona.edu predictable stages


http://www.ux1.eiu.edu predictable stages


http://www.agen.ufl.edu predictable stages


Climax community
Climax Community predictable stages

  • End result of succession

  • Stable group of plants and animals

  • Not necessarily big trees

    • Ex: grasses in prairies, cacti in deserts


  • Sequencing Succession predictable stages

    • 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



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