New multidimensional functional diversity indices for a multifaceted framework in functional ecology

Ecology
Sébastien VillégerDavid Mouillot

Abstract

Functional diversity is increasingly identified as an important driver of ecosystem functioning. Various indices have been proposed to measure the functional diversity of a community, but there is still no consensus on which are most suitable. Indeed, none of the existing indices meets all the criteria required for general use. The main criteria are that they must be designed to deal with several traits, take into account abundances, and measure all the facets of functional diversity. Here we propose three indices to quantify each facet of functional diversity for a community with species distributed in a multidimensional functional space: functional richness (volume of the functional space occupied by the community), functional evenness (regularity of the distribution of abundance in this volume), and functional divergence (divergence in the distribution of abundance in this volume). Functional richness is estimated using the existing convex hull volume index. The new functional evenness index is based on the minimum spanning tree which links all the species in the multidimensional functional space. Then this new index quantifies the regularity with which species abundances are distributed along the spanning tree. Functional d...Continue Reading

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Citations

Mar 23, 2011·Oecologia·Carlo Ricotta, Marco Moretti
Jun 4, 2013·Trends in Plant Science·Daniel C Laughlin, David E Laughlin
Jan 12, 2011·Proceedings of the National Academy of Sciences of the United States of America·Sandra DíazLourens Poorter
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Jan 7, 2014·PloS One·Anik Brind'Amour, Stanislas F Dubois
Oct 16, 2010·Ecological Applications : a Publication of the Ecological Society of America·Sébastien VillégerDavid Mouillot
Aug 12, 2014·PloS One·Carlo RicottaMarco Moretti
Sep 17, 2014·Proceedings of the National Academy of Sciences of the United States of America·Robert J WhittakerKostas A Triantis
Sep 17, 2014·Proceedings of the National Academy of Sciences of the United States of America·David MouillotDavid R Bellwood
Sep 17, 2014·Proceedings of the National Academy of Sciences of the United States of America·Cyrille ViolleJens Kattge
Nov 7, 2015·Global Change Biology·Lauren C PonisioClaire Kremen
Jan 29, 2016·Proceedings. Biological Sciences·D Matthias DehlingMatthias Schleuning
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Mar 19, 2013·Global Change Biology·Laëtitia BuissonPascal Laffaille

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