Volume 121, Issue 4

The decomposition of Shannon's entropy and a confidence interval for beta diversity

Eric Marcon

AgroParisTech, UMR EcoFoG, BP 709, FR‐97310 Kourou, French Guiana

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Bruno Hérault

AgroParisTech, UMR EcoFoG, BP 709, FR‐97310 Kourou, French Guiana

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Christopher Baraloto

AgroParisTech, UMR EcoFoG, BP 709, FR‐97310 Kourou, French Guiana

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Gabriel Lang

AgroParisTech, UMR EcoFoG, BP 709, FR‐97310 Kourou, French Guiana

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First published: 24 October 2011
Citations: 29
E. Marcon, AgroParisTech, UMR EcoFoG, BP 709, FR‐97310 Kourou, French Guiana. E‐mail: eric.marcon@ecofog.gf

Abstract

Beta diversity is among the most employed theoretical concepts in ecology and biodiversity conservation. Up to date, a self‐contained definition of it, with no reference to alpha and gamma diversity, has never been proposed. Using Kullback‐Leibler divergence, we present the explicit formula of Shannon's β entropy, a bias correction for its estimator and a confidence interval. We also provide the mathematical framework to decompose Shannon diversity into several hierarchical nested levels. From botanical inventories of tropical forest plots in French Guiana, we estimate Shannon diversity at the plot, forest and regional level. We believe this is a complete and usefulness toolbox for ecologists interested in partitioning biodiversity.

Number of times cited according to CrossRef: 29

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