Succession and soil formationPresentation Transcript
Succession Process by which one community replaces another, mostly by predictable and orderly changes in the composition or structure of an ecological community cc licensed flickr photo by stolenbyme: http://flickr.com/photos/stolenbyme/33471969/
Development of a community starting from bare rock.
Part of process of soil formation
cc licensed flickr photo by nbonzey: http://flickr.com/photos/thebonzey/505374606/
due to disturbance of an existing community
cc licensed flickr photo by pinegar: http://flickr.com/photos/pinegar/384646425/
First plants to grow in an area during the process of succession.
In primary succession, pioneer plants are part of the process of soil formation.
In secondary succession, pioneer plants colonize open spaces and stabilize (and fertilize) the soil
cc licensed flickr photo by stolenbyme: http://flickr.com/photos/stolenbyme/33471969/
The community in an area which is a result of the process of succession.
The climax community is not replaced by other plants/animals, but rather maintains itself homeostatically.
The composition of the climax community of an ecosystem depends on the soil and other climate conditions in an area.
cc licensed flickr photo by J. Star: http://flickr.com/photos/jstar/109974710/
Causes of succession
Disturbance of a community
by natural event such as forest fire, flood
by human actions such as clearing a forest by harvesting trees
cc licensed flickr photo by yuan2003: http://flickr.com/photos/yuan2003/1875040848/
Growth of a new community starting from bare rock cc licensed flickr photo by wanderflechten: http://flickr.com/photos/29750062@N06/2991832375/