Energy Flow and Trophic Structure
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The transfer of food energy from the source in plants through a series of organisms, with repeated eating and being eaten, is referred to as a food chain. At each transfer a large proportion, 80 to 90 percent, of the potential energy is lost as heat. Therefore the number of ‘links’ in a sequence is limited, usually four or five ... The number of consumers that can be supported by a given primary production output very much depends on the length of the food chain; each link in the chain decreases the available energy by about one order of magnitude.
KeywordsTrophic Level Food Chain Energy Flow Trophic Structure Tree Hole
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