1. ECOLOGICAL SUCCESSION Ecological Succession – the gradual change of species composition in a given area Two main types of ecological succession – Primary (beginning from bare rock) – long time Example: Volcanic Eruption destroys vegetation ecosystem has to develop from bare rock – Secondary (beginning from soil) – short time Example: Forest Fire destroys all vegetation ecosystem has to develop from remain soil

3. ECOLOGICAL SUCCESSION Pioneer Species – first organisms to show up Primary Succession Examples Mosses Lichens

4. Ecological Succession Pioneer Species – first organisms to show up Secondary Succession Examples Annual Weeds

5. Ecological Succession Climax Species – last organisms to show up Primary Succession Examples Balsam Fir Paper Birch White Spruce

6. Ecological Succession Climax Species – last organisms to show up Secondary Succession Examples Oak Hickory

7. Ecological Succession Videos Succession Video – http://www.youtube.com/watch?v=V49IovRSJDs http://www.youtube.com/watch?v=V49IovRSJDs TXPWD quail – http://www.youtube.com/watch?v=c2WsEGY2Ctk http://www.youtube.com/watch?v=c2WsEGY2Ctk