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The trophic level of an organism is the position it occupies in a food web. Within a food web, a food chain is a succession of organisms that eat other ...
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Trophic levels categorize organisms into different levels of the food chain. The first trophic level are producers, or autotrophs.
The trophic level index (TLI) is used in New Zealand as a measure of nutrient status of lakes. It is similar to the trophic state index but was proposed as ...
Trophic cascades are powerful indirect interactions that can control entire ecosystems, occurring when a trophic level in a food web is suppressed.