Difference between revisions of "Trophic level"

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''noun, plural: trophic levels''
 
''noun, plural: trophic levels''
  
A [[position]] in a [[food chain]] or [[Ecological Pyramid]] occupied by a group of [[organisms]] with similar feeding mode.
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A [[position]] in a [[food chain]] or [[Ecological Pyramid]] occupied by a group of [[organisms]] with similar feeding mode
 
 
  
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'''Supplement'''
 
'''Supplement'''
  
For example, the primary [[producer]]s are [[photosynthetic]] [[plants]] occupying the first trophic level. A group of organisms feeding on them is called [[herbivore]]s, which form the second trophic level. Organisms feeding on the [[herbivore]]s, called [[carnivore]]s, occupy the next trophic level.
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A trophic level refers to a level or a position in a [[food chain]] or [[ecological pyramid]]. It is occupied by a group of organisms that have a similar feeding mode. At the base of an ecological pyramid is trophic level 1. A food chain would start as well at trophic level 1. The trophic level 1 is occupied by the primary [[producer]]s (e.g. [[plant]]s). The primary [[producer]]s include a  group of organisms producing their own food. As the given example, the plants are primary producers for their ability to manufacture their food through [[photosynthesis]]. The next trophic level in a food chain or ecological pyramid is the trophic level 2. In this level, the organisms occupying this level feed on the primary producers and are referred to as primary consumers, i.e. [[herbivore]]s. Organisms feeding on the [[herbivore]]s, called [[predator]]s, occupy the next trophic level, i.e. trophic level 3. The trophic levels 4 or 5 are occupied by [[carnivore]]s or apex predators. The last of the trophic level is occupied by [[decomposer]]s, i.e.[[ detrivore]]s.
  
  
''Word origin:'' Greek ''trophē'', food.
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''Word origin:'' Greek ''trophē'' (food)
  
''See also:'' [[Ecological Pyramid]], [[food chain]], [[food web]].
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''See also:''  
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* [[Ecological Pyramid]]
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* [[food chain]]
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* [[food web]]
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* [[autotroph]]
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* [[consumer]]
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* [[herbivore]]
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* [[predator]]
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* [[carnivore]]
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* [[decomposer]]

Revision as of 05:04, 15 October 2016

Definition

noun, plural: trophic levels

A position in a food chain or Ecological Pyramid occupied by a group of organisms with similar feeding mode


Supplement

A trophic level refers to a level or a position in a food chain or ecological pyramid. It is occupied by a group of organisms that have a similar feeding mode. At the base of an ecological pyramid is trophic level 1. A food chain would start as well at trophic level 1. The trophic level 1 is occupied by the primary producers (e.g. plants). The primary producers include a group of organisms producing their own food. As the given example, the plants are primary producers for their ability to manufacture their food through photosynthesis. The next trophic level in a food chain or ecological pyramid is the trophic level 2. In this level, the organisms occupying this level feed on the primary producers and are referred to as primary consumers, i.e. herbivores. Organisms feeding on the herbivores, called predators, occupy the next trophic level, i.e. trophic level 3. The trophic levels 4 or 5 are occupied by carnivores or apex predators. The last of the trophic level is occupied by decomposers, i.e.detrivores.


Word origin: Greek trophē (food)

See also: