AP Biology : 8.6 Biodiversity- Study Notes

Ecological Succession
➢ Ecological succession refers to the predictable procession of plant communities over a relatively short period of time
➢ Primary succession

  •  Process of ecological succession in which no previous organisms have existed
  • sere
         ■ 1. Lichens (pioneer organisms)
         ■ 2. mosses/ferns
         ■ 3. Rough grasses
        ■ 4. Evergreen trees
        ■ 5. Deciduous trees

  •  Final community=climax community

➢ Secondary succession

  •  Same as primary, but starts off with grasses instead of lichens
  •  Occurs when habitat/community has been destroyed/disrupted
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