What is trophic?

  • (adj): Of or relating to nutrition.
    Example: "A trophic level on the food chain"


The trophic level of an organism is the position it occupies in a food chain. The word trophic derives from the Greek τροφή (trophē) referring to food or feeding. A food chain represents a succession of organisms that eat another organism and are, in turn, eaten themselves. The number of steps an organism is from the start of the chain is a measure of its trophic level. Food chains start at trophic level 1 with primary producers such as plants, move to herbivores at level 2, predators at level 3 and typically finish with carnivores or apex predators at level 4 or 5. The path along the chain can form either a one-way flow or a food "web". Ecological communities with higher biodiversity form more complex trophic paths.

Read more about Trophic.

Some articles on trophic:

Trophic - See Also
... Cascade effect Energy flow (ecology) Trophic cascade Trophic state index – applied to lakes Trophic dynamics - Food web ...
Postencephalitic Trophic Ulcer
... Postencephalitic trophic ulcer is an ulceration of the nose similar to trigeminal trophic lesions, and has been reported following epidemic encephalitis and herpes zoster of the trigeminal nerve ...
Trigeminal Trophic Lesion
... Trigeminal trophic lesions (also known as "Trigeminal trophic syndrome") are a cutaneous condition caused by the interruption of peripheral or central sensory pathways of the trigeminal nerve that ...
Trophic State Index - Trophic Classifications
... Lakes with extreme trophic indices may also be considered hyperoligotrophic or hypereutrophic ... The table below demonstrates how the index values translate into trophic classes ... Relationships between Trophic Index (TI), chlorophyll (Chl), phosphorus (P, both micrograms per litre), Secchi depth (SD, metres), and Trophic Class (after Carlson ...
Cross-boundary Subsidy - Relation of Cross-boundary Subsidies To Selected Ecological Concepts - Biotic Interactions and Trophic Structure - Trophic Cascade
... In subsidizing top trophic levels, effects may also be felt at all lower trophic levels in a phenomenon known as a trophic cascade ... An example of a trophic cascade that also acted as a cross-boundary subsidy is illustrated in a study by Knight et al ... (2005) in which changes in the trophic structure of one ecosystem resulted in an effect that cascaded to the adjacent ecosystem ...