Wednesday, July 6, 2011

Ecological Succession

ECOLOGICAL SUCCESSION

Courtesy:wikipedia
Ecological succession, is the phenomenon or process by which a community progressively transforms itself until a stable community is formed.

Succession may be initiated either by formation of new, unoccupied habitat (e.g., a lava flow or a severe landslide) or by some form of disturbance (e.g. fire, severe windthrow, logging) of an existing community. Succession that begins in areas where no soil is initially present is called primary succession, whereas succession that begins in areas where soil is already present is called secondary succession - is the invasion of a habitat by plants on land that was previously vegetated. Removal of past vegetation may be caused by natural or human disturbances such as fire, logging, cultivation, or hurricanes.

Succession stops when species composition changes no longer occur with time, and this community is said to be a climax community.




courtesy:http://mrswolfgang.wikispaces.com/Spack-Weber+Ecological+Succession




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