ECOLOGICAL SUCCESSION Ecological Succession – the gradual change of species composition in a given area Two main types of ecological succession – Primary.

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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 – TXPWD quail –

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