Definition And Types Of Ecological Pyramids

Friends, today in this article, we will be outlining the definition, meaning, and types of ecological pyramids.

1. Definition

An ecological pyramid may be defined as a graphic representation of the numbers or biomass or status of accumulated energy at different tropical levels in a food chain in an ecosystem.

2. Three Types

The ecological pyramids are of three types are as under:

  1.  Pyramid of numbers: A pyramid of numbers is the graphic representation depicting the arrangement of a number of individuals of different trophic levels in a food chain in an ecosystem. The shape of the pyramids of numbers may be upright or inverted.
  2. Pyramid of biomass: Pyramid of biomass is a graphic representation of biomass (total amount of living or organic matter in an ecosystem at any time) present per unit area in different trophic levels. Pyramid of biomass may also be straight or inverted.
  3. Pyramid of energy: Pyramid of energy is a graphic representation of the amount of energy per unit area in different trophic levels of a food chain. The pyramids of energy are always upright.

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