Succession

Gradual, sequential regrowth of species in an area –Usually after it has been destroyed Pioneering Species –Small, fast-growing, fast- reproducing –Usually first species to grow in successions –Ex. Crabgrass & ragweed

Primary Succession The development of a community in an area that has not supported life previously –Rock –Sand dune –island

Canadian Shield Where a glacier was –Eventually rock broke Pioneering species was LICHEN –Association of algae & fungi

Secondary Succession Sequential replacement of species following a disruption of an existing community –Forest fire –Storm –Human activity (logging, mining, farming)

Succession