تعريف ecological pyramid في الإنجليزية الإنجليزية القاموس.
A diagram that shows the relative amounts of energy or matter, or numbers of organisms within each trophic level in a food chain or food web
An Ecological Pyramid (or Trophic pyramid) is a graphical representation designed to show the biomass or productivity at each trophic level in a given ecosystem. Biomass pyramids show the abundance or biomass of organisms at each trophic level, while productivity pyramids show the production or turn-over in biomass. Ecological Pyramids begin with producers on the bottom and proceed through the various trophic levels, the highest of which is on top