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Number of trophic levels in ecological communities

Publication ,  Journal Article
Pimm, SL; Lawton, JH
Published in: Nature
December 1, 1977

ECOLOGICAL food chains are typically short, consisting of not more than four or five trophic levels. This is usually explained by a reduction in the energy which is available to successive links in the food chain1,2. In contrast, we believe that the number of trophic levels is constrained by population dynamics and not by ecological energetics. © 1977 Nature Publishing Group.

Duke Scholars

Published In

Nature

DOI

ISSN

0028-0836

Publication Date

December 1, 1977

Volume

268

Issue

5618

Start / End Page

329 / 331

Related Subject Headings

  • General Science & Technology
 

Citation

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Pimm, S. L., & Lawton, J. H. (1977). Number of trophic levels in ecological communities. Nature, 268(5618), 329–331. https://doi.org/10.1038/268329a0
Pimm, S. L., and J. H. Lawton. “Number of trophic levels in ecological communities.” Nature 268, no. 5618 (December 1, 1977): 329–31. https://doi.org/10.1038/268329a0.
Pimm SL, Lawton JH. Number of trophic levels in ecological communities. Nature. 1977 Dec 1;268(5618):329–31.
Pimm, S. L., and J. H. Lawton. “Number of trophic levels in ecological communities.” Nature, vol. 268, no. 5618, Dec. 1977, pp. 329–31. Scopus, doi:10.1038/268329a0.
Pimm SL, Lawton JH. Number of trophic levels in ecological communities. Nature. 1977 Dec 1;268(5618):329–331.
Journal cover image

Published In

Nature

DOI

ISSN

0028-0836

Publication Date

December 1, 1977

Volume

268

Issue

5618

Start / End Page

329 / 331

Related Subject Headings

  • General Science & Technology