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Ecosystems

Ecosystems. “Are dynamic complexes of biotic communities and their associated abiotic environments interacting as functional units.” -U.S. Fish and Wildlife Service. Note series for Environmental Science. Composition of Ecosystems.

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Ecosystems

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  1. Ecosystems “Are dynamic complexes of biotic communities and their associated abiotic environments interacting as functional units.” -U.S. Fish and Wildlife Service Note series for Environmental Science

  2. Composition of Ecosystems • Individuals (species) live together in groups called populations

  3. Ecosystem Energy Flows http://www.globalchange.umich.edu

  4. Earth as a support system Composition of the troposphere http://liftoff.msfc.nasa.gov/academy/space/atmosphere.html

  5. http://otn.uoregon.edu/skmiller

  6. marine.rutgers.edu

  7. Biogeochemical Cycles • Cycles on earth including gases… - Oxygen - Carbon - Nitrogen • Cycles involving solids… - Phosphorus - Sulfur

  8. Ecosystem Interactions • There are many types of ecosystems in the world with many levels of interactions called “trophic interactions” http://www.globalchange.umich.edu

  9. Lake Trophic Interactions

  10. Carbon Cycle NYU Image www.cotf.edu/ete/modules/carbon/earthfire.html

  11. Nitrogen Cycle http://muextension.missouri.edu/xplor/waterq/wq0252.htm

  12. Phosphorus Cycle http://www.bsi.vt.edu/chagedor/biol_4684/Cycles/Pcycle.html

  13. Sulfur Cycle www.agnr.umd.edu/users/agron/nutrient/Factshee/sulfur/Sulfur.html

  14. Taken from Garfield.com

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