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HOW ECOSYSTEMS WORK

HOW ECOSYSTEMS WORK. Life on Earth Depends on the Sun. 6 CO 2 + 6 H 2 O C 6 H 12 O 6 + 6 O 2. PRODUCERS. Organisms that can use sunlight directly to make their own energy Aka AUTOTROPH Trap solar energy and perform photosynthesis Vital to ecosystems

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HOW ECOSYSTEMS WORK

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  1. HOW ECOSYSTEMS WORK

  2. Life on Earth Depends on the Sun 6 CO2 + 6 H2O C6H12O6 + 6 O2

  3. PRODUCERS Organisms that can use sunlight directly to make their own energy Aka AUTOTROPH Trap solar energy and perform photosynthesis Vital to ecosystems Ex: grasses, algae, cactuses, trees

  4. CONSUMERS Rely on producers directly or indirectly for their energy Aka HETEROTROPHS Primary Consumers = Herbivores Secondary Consumers = Carnivores or Omnivores

  5. DECOMPOSERS Breaks down dead organisms and waste material Returns nutrients to soil, water and air Ex : fungi and bacteria

  6. ENERGY TRANSFER Each time one organism eats another, a transfer of energy occurs Study energy transfers by mapping out food chains and food webs

  7. SPECIAL TERMS Predator Prey Scavenger Parasite Host

  8. FOOD WEB

  9. PYRAMIDS 1- NUMBERS 2- BIOMASS 3- ENERGY

  10. Pyramid of Numbers

  11. Pyramid of Biomass

  12. Pyramid of Energy

  13. Calculate the Percentage loss of energy at each level Cayuga lake, NY- lake ecosystem Humans 1.2 calories Trout 6 calories Smelt 30 calories Small aquatic 150 calories animals 5. Algae 1000 calories

  14. Calculate the Percentage loss of energy at each level Cayuga lake, NY- lake ecosystem Humans 1.2 calories 80 % Trout 6 calories 80 % Smelt 30 calories 80 % Small aquatic 150 calories 85 % animals 5. Algae 1000 calories

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