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Influence of Food Web Structure on Carbon Exchange Between Lakes and the Atmosphere

Open access
Schindler, Daniel E., Carpenter, Stephen R., Cole, Jonathan J., Kitchell, James F., Pace, Michael L.·1997·Science

Abstract

Top predators and nutrient loading in lakes were manipulated to assess the influence of food web structure on carbon flux between lakes and the atmosphere. Nutrient enrichment increased primary production, causing lakes to become net sinks for atmospheric carbon (C atm ). Changes in top predators caused shifts in grazers. At identical nutrient loading, C atm invasion was greater to a lake with low grazing than to one with high grazing. Carbon stable-isotope distributions corroborated the drawdown of lake carbon dioxide and traced C atm transfer from algae to top predators. Thus, top predators altered ecosystem carbon fixation and linkages to the atmosphere.

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  27. We thank K. Cottingham J. Hodgson D. Thomas and N. Voichick for assistance with experiments and sampling; S. Blumenshine N. Caraco K. Cottingham T. Kratz D. Lodge Y. Vadeboncoeur and K. Webster for helpful discussions; and T. Frost and R. Hellenthal for logistical support. N. Haubenstock and K. Tholke performed the stable isotope analyses. This manuscript benefited from reviews by P. Leavitt and K. Webster. Financial support was provided by the National Science Foundation–Ecosystems Program and Doctoral Dissertation Improvement Program. This is a contribution to the University of Wisconsin Center for Limnology the Institute of Ecosystem Studies and the University of Notre Dame Environmental Research Center.

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Metadata

Authors
Schindler, D. E., Carpenter, S. R., Cole, J. J., Kitchell, J. F., & Pace, M. L.
Venue
Science
Published
1997-07-11
Volume
277
Issue
5323
Pages
248-251
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2064580349
Cited by
350
References
2
FWCI
11.22
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Influence of Food Web Structure on Carbon Exchange Between Lakes and the Atmosphere. https://app.cochat.ai/papers/10.1126/science.277.5323.248
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Schindler, D. E., Carpenter, S. R., Cole, J. J., Kitchell, J. F., & Pace, M. L. (1997). Influence of Food Web Structure on Carbon Exchange Between Lakes and the Atmosphere. Science. https://doi.org/10.1126/science.277.5323.248

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