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  • Title: A partial ordering approach for functional diversity.
    Author: Ricotta C, Szeidl L, Moretti M, Blasi C.
    Journal: Theor Popul Biol; 2011 Sep; 80(2):114-20. PubMed ID: 21510965.
    Abstract:
    Functional diversity is generally regarded as the constituent of biological diversity that considers how the species functional traits affect ecosystem processes. Due to its ecological relevance, a number of indices of functional diversity have been proposed to date based on distinct objectives and motivations. Such proliferation of indices can be at least partially overcome by a more fundamental mathematical approach. In this paper we propose an intrinsic ordering approach for abundance-weighted measures of functional diversity that is similar to the Lorenz curves used by ecologists for ordering evenness measures. We then discuss the relevance of a number of functional diversity indices that have a behavior compatible with the proposed partial ordering.
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