Trophic level

trophic level

  • 栄養段階.食物連鎖における段階(日本語)
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Glossary of "Life (9th ed.)" by Sadava et al. (2011)

  • A group of organisms united by obtaining their energy from the same part of the food web of a biological community.

Glossary of "Environmental Science: Earth as a Living Planet (2nd ed.)" by Botkin & Keller (1998)

  • In an ecological community, all the organisms that are the same number of food-chain steps from the primary source of energy. For example, in a grassland the green grasses are on the first trophic level, grasshoppers are on the second, birds that feed on grasshoppers are on the third, and so forth.


広島大学 / デジタル自然史博物館 / 植物 / アルファベット順 / T | 仮名順 にもどる