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 –