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The study of how living things and their environment interact.

Ecosystem: all of the living and non-living things in an area interacting with each other.

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LIVING parts of an ecosystem such as plants, animals, and bacteria.

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NON-LIVING parts of an ecosystem.

http://www.eoearth.org/files/110601_110700/110664/250px-AP_ES_abiotic_factors_terrestrial_ecosystem.JPG

bealbio.wikispaces.com Population: all the members of one species in an ecosystem.

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All the populations living together in the same area.

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Biosphere

Ecosystem Community Population Organism

The area in which an organism lives.

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An organisms “job” in an ecosystem.

A giraffe's niche is feeding on the canopy on trees.

*Generally, no two species will occupy the same exact niche in an ecosystem.

*This is because it causes the species to compete with one another for resources, and only one will prevail.

*Therefore, one species will typically have to relocate, or adapt to another niche- which is not an easy thing to do- or risk extinction.

http://www.grln.net/Giraffe3.jpg

Lions and African wild dogs are both carnivores, but they have slightly different niches that allow them to coexist in the same ecosystem. Lions hunt large prey such as zebras, while wild dogs prefer smaller prey such as antelope. http://www.hdwallpapers.in/walls/african_lion_king-wide.jpg

wildafrica.cz

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