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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
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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
ECOLOGICAL SUCCESSION Pioneer Species – first organisms to show up Primary Succession Examples Mosses Lichens
Ecological Succession Pioneer Species – first organisms to show up Secondary Succession Examples Annual Weeds
Ecological Succession Climax Species – last organisms to show up Primary Succession Examples Balsam Fir Paper Birch White Spruce
Ecological Succession Climax Species – last organisms to show up Secondary Succession Examples Oak Hickory
Ecological Succession Videos Succession Video – http://www.youtube.com/watch?v=V49IovRSJDs TXPWD quail – http://www.youtube.com/watch?v=c2WsEGY2Ctk