What are the three types of ecological pyramids? What information is conveyed by each pyramid with regard to structure, function and energy in the ecosystem.

An ecological pyramid is a graphical representation which is used for showing the various ecological features like the number of individuals present at a trophic level, the amount of energy and the biomass at each trophic level.

The three types of ecological pyramids are:

i) Pyramid of number.

ii) Pyramid of biomass.

iii) Pyramid of energy.

The above can be explained further:

i) Pyramid of number:

• It is an ecological pyramid which represents the number of individual organisms at each trophic level in an ecosystem.

• Pyramid of numbers can be either upright or inverted.

ii) Pyramid of biomass:

• It is an ecological pyramid which represents the amount of organic matter present at each trophic level in an ecosystem.

• It can be either upright or inverted pyramid.

iii) Pyramid of energy:

• It is an ecological pyramid which represents the total amount of energy present at each trophic level in an ecosystem.

• It can be either upright or inverted pyramid.