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Ecosystems

What shapes Ecosystems and examples of ecosystems.
by

Dawn Lipenta

on 4 June 2010

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Transcript of Ecosystems

Ecosystems Biotic Factors
- living factors Abiotic Factors
- non-living factors Together, the biotic and abiotic factors determine the survival and growth of an organism and the productivity of the ecosystem in which the organism lives. How do you survive?

You have to find your niche! Think of your niche as to where you fit in! type of food
how it gets food
place in food web
what eats it
physical needs
how it reproduces
when it reproduces What would happen if two of the warbler species attempted to occupy the same niche? Interactions within Communitites Competition - organisms are attempting to use the same resource at the same time. Predation - where one organism captures and feeds on another organism Symbosis - any relationship where two species live closely together. Includes: mutalism, commensalism, & parasitism. Mutualism - both species benefit Commensalism - one benefits and the other is not harmed or helped. Parasitism - one organism lives on or in another and harms it. Succession Ecosystems are constantly changing in response to natural and human disturbances. Ecological succession - series of predictable changes that occur in a community over time Pioneer Species - first to populate the area. Primary Succesion Secondary Succesion occurs after a disturbance, such as fire, or humans.
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