Food pyramid — may refer to:*Food guide pyramid, a core concept in nutritional guides around the world. **MyPyramid, the USDA s 2005 version of the food guide pyramid. *Ecological pyramid or trophic pyramid, a representation of a food chain … Wikipedia
food pyramid — noun Date: 1949 an ecological hierarchy of food relationships in which a chief predator is at the top, each level preys on the next lower level, and usually green plants are at the bottom … New Collegiate Dictionary
Food web — A freshwater aquatic and terrestrial food web. A food web (or food cycle) depicts feeding connections (what eats what) in an ecological community. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) the … Wikipedia
Pyramid (disambiguation) — A pyramid is any three dimensional structure where the upper surfaces are triangular and converge at one point. Pyramid may also refer to:* Pyramid (geometry), a conic solid with polygonal base * Egyptian pyramids, the pyramids of Egypt **… … Wikipedia
Ecological pyramid — An interesting face(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,… … Wikipedia
Ecological footprint — The ecological footprint is a measure of human demand on the Earth s ecosystems. It is a standardized measure of demand for natural capital that may be contrasted with the planet s ecological capacity to regenerate.[1] It represents the amount of … Wikipedia
Ecological niche — Black smokers create ecological niches with their unusual environment In ecology, a niche ( … Wikipedia
Ecological succession — Succession after disturbance: a boreal forest one (left) and two years (right) after a wildfire. Ecological succession, is the phenomenon or process by which a community progressively transforms itself until a stable community is formed. It is a… … Wikipedia
ecological pyramid — noun 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 … Wiktionary
Consumer (food chain) — Spotted hyenas eating a dead Impala. Hyenas are one example of a consumer. Consumers are organisms of an ecological food chain that receive their energy by consuming other organisms. These organisms are formally referred to as heterotrophs, which … Wikipedia
