Events that change a community Can alter resources Can destroy or remove organisms.
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SUCCESSION Changes in the environment
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Transcript of Events that change a community Can alter resources Can destroy or remove organisms.
SUCCESSION
Changes in the environment
Disturbances:
Events that change a communityCan alter resourcesCan destroy or remove organisms
Stability:
The ability of a community to resist disturbancesThe greater the biodiversity, the greater the stability
Ecological Succession:
Gradual sequential changes of a communityCan be primary or secondary
Primary Succession:The start of a community in a place where there was no lifeExamples: a new island forms or a volcanic eruption covers a community with lava
Pioneer species are the first organisms to live in a new area
Pioneer species are small, hardy, and grow quickly
Primary succession is a very slow process!
Secondary Succession:
Occurs after a disturbance, either natural or man-made
In secondary succession, soil remains and some
species are able to survive.
This type of succession is much faster. It may only take 100 years in some cases.
Climax Communities:The stable endpoint of successionThere is very little change
