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Difference between revisions of "Food chain"

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The series of step by which energy is obtained, used and transformed by living things.
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'''Definition'''
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A feeding [[hierarchy]] in which [[organisms]] in an [[ecosystem]] are grouped into [[trophic]] (nutritional) levels and are shown in a succession to represent the flow of food [[energy]] and the feeding relationships between them.
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'''Supplement'''
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The directional flow of materials and [[energy]] from one [[organism]] to another is graphically represented by arrows. For example: [[trees]] and [[shrubs]] ([[producer]]) → giraffe ([[herbivore]]) → [[lion]] ([[carnivore]]).
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Most food chains have only about four to five links since too many links in a food chain will result in high demand, less supply of food (and therefore [[energy]]).
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''See also:'' [[food web]], [[trophic level]].

Latest revision as of 00:51, 4 October 2008

Definition

A feeding hierarchy in which organisms in an ecosystem are grouped into trophic (nutritional) levels and are shown in a succession to represent the flow of food energy and the feeding relationships between them.


Supplement

The directional flow of materials and energy from one organism to another is graphically represented by arrows. For example: trees and shrubs (producer) → giraffe (herbivore) → lion (carnivore).

Most food chains have only about four to five links since too many links in a food chain will result in high demand, less supply of food (and therefore energy).


See also: food web, trophic level.