Pyramids of Biomass

• Trophic Levels and Pyramids of Biomass:

  • Pyramids of biomass show the relative biomass at each trophic level, with less biomass as you move up levels
  • Approximately 10% of the biomass of each trophic level is transferred to the next
  • Glucose used in respiration, Urea, Biomass contribute
• 1. bars equally spaced around the midpoint
  2. bars touching
  3. bar for the producer at the bottom
  4. length of each bar is proportional to the amount of biomass available at each trophic level
• Pyramids of Biomass

  A) Tertiary consumer

  B) Secondary consumer

  C) Primary consumer

  D) Producer

  
• Efficiency of biomass transfers = (energy transferred/energy supplied) x 100