SUCCESSIONSUCCESSION

A series of changes in a A series of changes in a communitycommunity

Primary SuccessionPrimary Succession

Begins in an area where there is no life Begins in an area where there is no life EX. Bare rock and sandy beachesEX. Bare rock and sandy beaches

First organisms there need to be hardy First organisms there need to be hardy organisms that can survive harsh organisms that can survive harsh conditions-----conditions-----Pioneer speciesPioneer species

Pioneer species- lichens,bacteria, Pioneer species- lichens,bacteria, decomposers, mossdecomposers, moss

Grasses, shrubs, ferns replace these Grasses, shrubs, ferns replace these organisms which help increase soil fertilityorganisms which help increase soil fertility

As plant life changes and develops the As plant life changes and develops the animal life does the same animal life does the same

Climax CommunityClimax Community

The final, stable stage in the The final, stable stage in the development of a communitydevelopment of a community

New England-Beech, MapleNew England-Beech, MapleSoutheast United States- Oak, Southeast United States- Oak,

HickoryHickory

Bare rock to climax Bare rock to climax communitycommunity

Primary succession following the Primary succession following the retreat of a glacierretreat of a glacier

Secondary SuccessionSecondary Succession

This succession that occurs when the This succession that occurs when the dominant plants of a plant community are dominant plants of a plant community are removedremoved

Fire, natural disaster, human interactionFire, natural disaster, human interaction It occurs faster than primary succession It occurs faster than primary succession

mainly because you don’t have to start mainly because you don’t have to start from scratchfrom scratch

Succession in an area does not always Succession in an area does not always lead to the same climax community each lead to the same climax community each timetime

Secondary SuccessionSecondary Succession

POND SUCCESSIONPOND SUCCESSION