Ecological pyramid: Definition, Type and limitations

Define Ecological Pyramid

  • Ecological pyramid is a mathematical-statistical tool to analyze the food chain in terms of the amount of energy stored, the number of organisms supported and the amount of biomass stored per unit area in a given interval of time.
  • It is graphically represented through the tropic level.

Types of Ecological Pyramid

There are three types of pyramids:

  1. Pyramid of energy – Is always upright
  2. Pyramid of number – can be both upright and inverted
  3. Pyramid of biomass – can be both upright and inverted.

Limitations of the Ecological Pyramid

  • It does not take food webs into consideration.
  • Only applies to ordinary food chains
  • Saprophytes are not admitted in any pyramids.

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