Diversity and dissimilarity within and between species assemblages have now been studied for more than half a century by community ecologists in relation to their connections with ecosystem functioning. However, a generalized framework that puts diversity and dissimilarity coefficients under the same formal umbrella is still lacking. In this paper, we show that generalized means represent an effective tool to develop a unifying formulation for the construction of a large array of parametric diversity and dissimilarity measures. These measures include some of the classical diversity coefficients, such as the Shannon entropy, the Gini-Simpson index or the parametric diversity of Patil and Taillie, together with a large number of dissimilarity coefficients of the Bray-Curtis family and can be further extended to the measurement of functional and phylogenetic differences within and between plots.

Towards a unifying framework for diversity and dissimilarity coefficients / Ricotta, Carlo; Szeidl, Laszlo; Pavoine, Sandrine. - In: ECOLOGICAL INDICATORS. - ISSN 1470-160X. - 129:(2021). [10.1016/j.ecolind.2021.107971]

Towards a unifying framework for diversity and dissimilarity coefficients

Ricotta, Carlo
;
2021

Abstract

Diversity and dissimilarity within and between species assemblages have now been studied for more than half a century by community ecologists in relation to their connections with ecosystem functioning. However, a generalized framework that puts diversity and dissimilarity coefficients under the same formal umbrella is still lacking. In this paper, we show that generalized means represent an effective tool to develop a unifying formulation for the construction of a large array of parametric diversity and dissimilarity measures. These measures include some of the classical diversity coefficients, such as the Shannon entropy, the Gini-Simpson index or the parametric diversity of Patil and Taillie, together with a large number of dissimilarity coefficients of the Bray-Curtis family and can be further extended to the measurement of functional and phylogenetic differences within and between plots.
2021
Bray-Curtis dissimilarity; effective number of species; expected species rarity; generalized mean; Gini-Simpson diversity; parametric diversity; Rao's quadratic diversity; Shannon's entropy; species ordinariness
01 Pubblicazione su rivista::01a Articolo in rivista
Towards a unifying framework for diversity and dissimilarity coefficients / Ricotta, Carlo; Szeidl, Laszlo; Pavoine, Sandrine. - In: ECOLOGICAL INDICATORS. - ISSN 1470-160X. - 129:(2021). [10.1016/j.ecolind.2021.107971]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1571360
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