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Process of energy transfer through the food chain

May 13, 2024 | by Bloom Code Studio

  • The initial energy is obtained from the sun, and plants produce metabolic energy by photosynthesis, wherein only 10% of energy is stored in their tissue that’s means approximately 10% of energy available for consumption by grazing herbivores. The plant, in its metabolism, uses the remaining solar energy, lost as heat or lost as waste.
  • Of the 10% that herbivores eat, approximately 10% are stored in their tissue to be fed by carnivores. Herbivores use up the remaining 90% of their metabolic energy in functioning.
  • This process continues up the pyramid, with each subsequent carnivore only inheriting 10% of the previous energy level.
  • As time passes, about 0.1% of the solar energy that hits the top of the pyramid is consumed by the top predator, and the rest is lost in metabolic activities.
  • Decomposers (bacteria, fungi, and worms) get the little amount of energy remaining in the tissues of dead plants and animals.  
  • The 10% rule state that “about 90% of energy from food is used for bodily processes or lost as heat, leaving 10% of the original energy available to feed the next consumer”.   

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