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Biology LibreTexts

6: Trophic Webs

  • Page ID
    25200
  • By Drs. Ingrid Waldron and Lori Spindler, Dept Biology, Univ Pennsylvania. CC-BY-NC 4.0.

     

     

    Students analyze the production and utilization of organic molecules in ecosystems. Students construct a food web for Yellowstone National Park, including producers, primary consumers, secondary consumers, decomposers, and trophic omnivores. Then, students analyze a trophic cascade that resulted when wolves were reintroduced to Yellowstone.

    • 6.1: Trophic Webs Protocol
      Organic molecules are complex, carbon-containing molecules found in living organisms. In this activity, we will analyze the production and utilization of organic molecules in ecosystems. We will focus primarily on how carbohydrates are produced and used in ecosystems.
    • 6.2: Trophic Webs Teacher's Preparation Notes
      In this activity, students analyze the production and utilization of organic molecules in ecosystems. Students construct a food web for Yellowstone National Park, including producers, primary consumers, secondary consumers, decomposers, and trophic omnivores. Then, students analyze a trophic cascade that resulted when wolves were reintroduced to Yellowstone.