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TOPIC : Ecology AIM : What are Food Chains & Food Webs?

TOPIC : Ecology AIM : What are Food Chains & Food Webs?. Main source of energy in an ecosystem. FOOD CHAIN. Model of the feeding relationships in an ecosystem Shows how matter and energy pass from one organism to another. Food chain. Secondary Consumer (Carnivore or omnivore).

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TOPIC : Ecology AIM : What are Food Chains & Food Webs?

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  1. TOPIC: EcologyAIM: What are Food Chains & Food Webs?

  2. Main source of energy in an ecosystem

  3. FOOD CHAIN Model of the feeding relationships in an ecosystem Shows how matter and energy pass from one organism to another

  4. Food chain Secondary Consumer (Carnivore or omnivore) Grass  Grasshopper  Sparrows  Hawks Primary Consumer (Herbivore) Tertiary Consumer Producer (TROPHIC LEVELS) Decrease in energy

  5. FOOD WEB Interconnecting food chains Shows all possible feeding relationships among the organisms in a community

  6. Energy Pyramid Shows the amount of energy available at each feeding level in an ecosystem

  7. Pyramid of energy Tertiary consumers Energy decreases Secondary consumers (3rd FL) Primary consumers (2nd FL) Producers (1st feeding level)

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