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Linking trophic positions and flow structure constraints in ecological networks: Energy transfer efficiency or topology effect?

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  • Scotti, Marco
  • Bondavalli, Cristina
  • Bodini, Antonio

Abstract

In the present work we investigate whether the distribution of energy flows in ecosystems responds to criteria of trophic organization. We analyzed weighted and unweighted food webs estimating, for each node, trophic position (TP), Shannon's index of inflow diversity (H) and individual contribution to the whole average mutual information (AMI). Finally, we performed the same analysis on simulated webs that were constructed using the following criteria: (a) preserving topology and varying link strength; (b) modifying position of links and their intensities.

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  • Scotti, Marco & Bondavalli, Cristina & Bodini, Antonio, 2009. "Linking trophic positions and flow structure constraints in ecological networks: Energy transfer efficiency or topology effect?," Ecological Modelling, Elsevier, vol. 220(21), pages 3070-3080.
    • Handle: RePEc:eee:ecomod:v:220:y:2009:i:21:p:3070-3080
    DOI: 10.1016/j.ecolmodel.2008.07.034
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    References listed on IDEAS

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    Cited by:

    1. Yang, Zhifeng & Mao, Xufeng, 2011. "Wetland system network analysis for environmental flow allocations in the Baiyangdian Basin, China," Ecological Modelling, Elsevier, vol. 222(20), pages 3785-3794.

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