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Roles in an Ecosystem

Roles in an Ecosystem. Producers Consumers (herbivore, carnivore, omnivore, decomposer, detrivore ) Video : The Importance of Decomposers Write down five important uses of these organisms Trophic level – place in a food chain Plants are in the 1 st trophic level Herbivores are in the 2nd.

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Roles in an Ecosystem

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  1. Roles in an Ecosystem • Producers • Consumers (herbivore, carnivore, omnivore, decomposer, detrivore) Video: The Importance of Decomposers Write down five important uses of these organisms • Trophic level – place in a food chain • Plants are in the 1st trophic level • Herbivores are in the 2nd

  2. Pyramid of Numbers • Shows how many organisms are present at each trophic level

  3. Energy Pyramid • Shows how much energy is at each trophic level. • The size of a food chain is limited, because of the amount of energy passed on.

  4. 10% Rule • Only about 10% of the energy in one trophic level passes to the next. • Does this violate the law of conservation of energy? • Where does the energy go?

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