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Functional diversity governs ecosystem response to nutrient enrichment

Author

Listed:
  • Florence D. Hulot

    (Laboratoire d'Ecologie, UMR 7625, Ecole Normale Supérieure)

  • Gérard Lacroix

    (Laboratoire d'Ecologie, UMR 7625, Ecole Normale Supérieure)

  • Françoise Lescher-Moutoué

    (Laboratoire d'Ecologie, UMR 7625, Ecole Normale Supérieure)

  • Michel Loreau

    (Laboratoire d'Ecologie, UMR 7625, Ecole Normale Supérieure)

Abstract

The relationship between species diversity and ecosystem functioning is a central topic in ecology today1,2. Classical approaches to studying ecosystem responses to nutrient enrichment have considered linear food chains3,4. To what extent ecosystem structure, that is, the network of species interactions, affects such responses is currently unknown. This severely limits our ability to predict which species or functional groups will benefit or suffer from nutrient enrichment and to understand the underlying mechanisms5,6,7,8. Here our approach takes ecosystem complexity into account6,9,10 by considering functional diversity at each trophic level11,12,13,14. We conducted a mesocosm experiment to test the effects of nutrient enrichment in a lake ecosystem. We developed a model of intermediate complexity, which separates trophic levels into functional groups according to size and diet. This model successfully predicted the experimental results, whereas linear food-chain models did not. Our model shows the importance of functional diversity and indirect interactions in the response of ecosystems to perturbations, and indicates that new approaches are needed for the management of freshwater ecosystems subject to eutrophication.

Suggested Citation

  • Florence D. Hulot & Gérard Lacroix & Françoise Lescher-Moutoué & Michel Loreau, 2000. "Functional diversity governs ecosystem response to nutrient enrichment," Nature, Nature, vol. 405(6784), pages 340-344, May.
    • Handle: RePEc:nat:nature:v:405:y:2000:i:6784:d:10.1038_35012591
    DOI: 10.1038/35012591
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    Cited by:

    1. Makoto M. Watanabe & Andreas Isdepsky, 2021. "Biocrude Oil Production by Integrating Microalgae Polyculture and Wastewater Treatment: Novel Proposal on the Use of Deep Water-Depth Polyculture of Mixotrophic Microalgae," Energies, MDPI, vol. 14(21), pages 1-29, October.
    2. Ortiz, Marco & Campos, Leonardo & Berrios, Fernando & Rodriguez, Fabián & Hermosillo, Brenda & González, Jorge, 2013. "Network properties and keystoneness assessment in different intertidal communities dominated by two ecosystem engineer species (SE Pacific coast): A comparative analysis," Ecological Modelling, Elsevier, vol. 250(C), pages 307-318.
    3. Wang Tian & Huayong Zhang & Lei Zhao & Xiang Xu & Hai Huang, 2016. "The Relationship between Phytoplankton Evenness and Copepod Abundance in Lake Nansihu, China," IJERPH, MDPI, vol. 13(9), pages 1-15, August.
    4. Montaño-Moctezuma, Gabriela & Li, Hiram W. & Rossignol, Philippe A., 2007. "Alternative community structures in a kelp-urchin community: A qualitative modeling approach," Ecological Modelling, Elsevier, vol. 205(3), pages 343-354.

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