Wednesday, May 28, 2008

Ecological pyramids

Graphical representation of trophic levels of food chain is known as Ecological pyramids.
•The base of each pyramid represents the producers or the first trophic levels, mid herbivores and the apex represents tertiary or top level consumers.
•Common parameters used for constructing ecological pyramids are no. of individuals (pyramid of no.), dry weight (pyramid of biomass), or rate of energy flow (pyramid of energy)

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