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  Biomass, in ecology, describes the total weight of living organisms of one species within a given area such as a habitat or biome. Biomass provides an indication of the energy stored within a community and the rate of change of biomass shows the productivity of the system under study. In a food web or chain, the biomass of the producers (green plants) greatly exceeds that of the consumers (herbivores and carnivores) because the transfer of energy between each link is inefficient. RB

See also community; competition.



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