Succession

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