follow Dictionary.com

Why was "tantrum" trending last week?

trophic level

noun, Ecology
1.
any class of organisms that occupy the same position in a food chain, as primary consumers, secondary consumers, and tertiary consumers.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for trophic level
  • The term trophic level refers to an organism's position in a food chain.
  • Plant matter in an ecosystem makes up the first trophic level and thus are known as primary producers.
trophic level in Science
trophic level  
Any of the sequential stages in a food chain, occupied by producers at the bottom and in turn by primary, secondary, and tertiary consumers. Decomposers (detritivores) are sometimes considered to occupy their own trophic level. ◇ The rate at which energy is transferred from one trophic level to the next is called the ecological efficiency. Consumers at each level convert an average of only about 10 percent of the chemical energy in their food to their own organic tissue. Since plants can only convert approximately 1 percent of incident sunlight into chemical energy at the lowest trophic level (the bottom of the food chain), the percentage of the energy in incident sunlight that reaches a tertiary consumer is about 0.0001.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for trophic level

Few English speakers likely know this word

Word Value for trophic

14
15
Scrabble Words With Friends