Multiple facets of biodiversity drive the diversity–stability relationship

Dylan Craven*, Nico Eisenhauer, William D. Pearse, Yann Hautier, Forest Isbell, Christiane Roscher, Michael Bahn, Carl Beierkuhnlein, Gerhard Bönisch, Nina Buchmann, Chaeho Byun, Jane A. Catford, Bruno E.L. Cerabolini, J. Hans C. Cornelissen, Joseph M. Craine, Enrica De Luca, Anne Ebeling, John N. Griffin, Andy Hector, Jes HinesAnke Jentsch, Jens Kattge, Jürgen Kreyling, Vojtech Lanta, Nathan Lemoine, Sebastian T. Meyer, Vanessa Minden, Vladimir Onipchenko, H. Wayne Polley, Peter B. Reich, Jasper van Ruijven, Brandon Schamp, Melinda D. Smith, Nadejda A. Soudzilovskaia, David Tilman, Alexandra Weigelt, Brian Wilsey, Peter Manning

*Corresponding author for this work

    Research output: Contribution to JournalArticleAcademicpeer-review

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    Abstract

    A substantial body of evidence has demonstrated that biodiversity stabilizes ecosystem functioning over time in grassland ecosystems. However, the relative importance of different facets of biodiversity underlying the diversity–stability relationship remains unclear. Here we use data from 39 grassland biodiversity experiments and structural equation modelling to investigate the roles of species richness, phylogenetic diversity and both the diversity and community-weighted mean of functional traits representing the ‘fast–slow’ leaf economics spectrum in driving the diversity–stability relationship. We found that high species richness and phylogenetic diversity stabilize biomass production via enhanced asynchrony in the performance of co-occurring species. Contrary to expectations, low phylogenetic diversity enhances ecosystem stability directly, albeit weakly. While the diversity of fast–slow functional traits has a weak effect on ecosystem stability, communities dominated by slow species enhance ecosystem stability by increasing mean biomass production relative to the standard deviation of biomass over time. Our in-depth, integrative assessment of factors influencing the diversity–stability relationship demonstrates a more multicausal relationship than has been previously acknowledged.

    Original languageEnglish
    Pages (from-to)1579-1587
    Number of pages9
    JournalNature Ecology and Evolution
    Volume2
    Issue number10
    Early online date27 Aug 2018
    DOIs
    Publication statusPublished - Oct 2018

    Funding

    This paper is a product of the sTability group funded by sDiv (www.idiv.de/stability), the Synthesis Centre of the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig (DFG FZT 118). The Jena Experiment is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation; FOR 1451) and the Swiss National Science Foundation. The Cedar Creek biodiversity experiments were supported by awards from the Andrew Mellon Foundation, the US National Science Foundation (NSF) Long-Term Ecological Research (grant numbers DEB-9411972, DEB-0080382, DEB-0620652 and DEB-1234162), Biocomplexity Coupled Biogeochemical Cycles (DEB-0322057), Long-Term Research in Environmental Biology (DEB-0716587, DEB-1242531) and Ecosystem Sciences (NSF DEB-1120064) Programs, as well as the US Department of Energy Programs for Ecosystem Research (DE-FG02-96ER62291) and National Institute for Climatic Change Research (DE-FC02-06ER64158). The Texas MEND study was funded by US-NSF DEB-0639417 and USDA-NIFA-2014-67003-22067. The study has been supported by the TRY initiative on plant traits (http://www.try-db. org). TRY is currently supported by DIVERSITAS/Future Earth and the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig. V.O. received financial support from the Russian Science Foundation (14-50-00029). The authors would also like to thank J. Lefcheck for his help in revising the structural equation models.

    FundersFunder number
    Biocomplexity Coupled Biogeochemical CyclesDEB-0322057
    German Centre for Integrative Biodiversity Research
    Long-Term Research in Environmental BiologyDEB-1242531, DEB-0716587, DEB-1120064
    National Institute for Climatic Change ResearchDE-FC02-06ER64158
    Synthesis Centre of the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-LeipzigFZT 118
    US Department of Energy Programs for Ecosystem ResearchDE-FG02-96ER62291
    US National Science Foundation
    US-NSFDEB-0639417, USDA-NIFA-2014-67003-22067
    National Science FoundationDEB-1234162, DEB-9411972, DEB-0080382, DEB-0620652
    Directorate for Biological Sciences1234162
    Andrew W. Mellon Foundation
    Deutsche ForschungsgemeinschaftFOR 1451
    Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
    Russian Science Foundation14-50-00029
    iDiv

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