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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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