WilliamsPaquetteCavender-BaresEtAl2017

Reference

Williams, L.J., Paquette, A., Cavender-Bares, J., Messier, C. and Reich, P.B. (2017) Spatial complementarity in tree crowns explains overyielding in species mixtures. Nature Ecology & Evolution, 1(4). (Scopus )

Abstract

Deciphering the mechanisms that link biodiversity with ecosystem functions is critical to understanding the consequences of changes in biodiversity. The hypothesis that complementarity and selection effects drive relationships between biodiversity and ecosystem functions is well accepted, and an approach to statistically untangle the relative importance of these effects has been widely applied. In contrast, empirical demonstrations of the biological mechanisms that underlie these relationships remain rare. Here, on the basis of a field experiment with young trees, we provide evidence that one form of complementarity in plant communities - complementarity among crowns in canopy space - is a mechanism, related to light interception and use, that links biodiversity with ecosystem productivity. Stem biomass overyielding increased sharply in mixtures with greater crown complementarity. Inherent differences among species in crown architecture led to greater crown complementarity in functionally diverse species mixtures. Intraspecific variation, specifically neighbourhood-driven plasticity in crowns, further modified spatial complementarity and strengthened the positive relationship with overyielding - crown plasticity and inherent interspecific differences contributed near equally in explaining patterns of overyielding. We posit that crown complementarity is an important mechanism that may contribute to diversity-enhanced productivity in forests. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.

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@ARTICLE { WilliamsPaquetteCavender-BaresEtAl2017,
    AUTHOR = { Williams, L.J. and Paquette, A. and Cavender-Bares, J. and Messier, C. and Reich, P.B. },
    TITLE = { Spatial complementarity in tree crowns explains overyielding in species mixtures },
    JOURNAL = { Nature Ecology & Evolution },
    YEAR = { 2017 },
    VOLUME = { 1 },
    NUMBER = { 4 },
    NOTE = { cited By 23 },
    ABSTRACT = { Deciphering the mechanisms that link biodiversity with ecosystem functions is critical to understanding the consequences of changes in biodiversity. The hypothesis that complementarity and selection effects drive relationships between biodiversity and ecosystem functions is well accepted, and an approach to statistically untangle the relative importance of these effects has been widely applied. In contrast, empirical demonstrations of the biological mechanisms that underlie these relationships remain rare. Here, on the basis of a field experiment with young trees, we provide evidence that one form of complementarity in plant communities - complementarity among crowns in canopy space - is a mechanism, related to light interception and use, that links biodiversity with ecosystem productivity. Stem biomass overyielding increased sharply in mixtures with greater crown complementarity. Inherent differences among species in crown architecture led to greater crown complementarity in functionally diverse species mixtures. Intraspecific variation, specifically neighbourhood-driven plasticity in crowns, further modified spatial complementarity and strengthened the positive relationship with overyielding - crown plasticity and inherent interspecific differences contributed near equally in explaining patterns of overyielding. We posit that crown complementarity is an important mechanism that may contribute to diversity-enhanced productivity in forests. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. },
    AFFILIATION = { Department of Ecology, Evolution and Behavior, University of Minnesota, St Paul, MN, United States; Centre for Forest Research, Université du Québec À Montréal, PO Box 8888, Centre-Ville Station, Montréal, QC, Canada; Institut des Sciences de la Forêt Tempérée (ISFORT), Université du Québec en Outaouais, 58 Rue Principale, Ripon, QC, Canada; Department of Forest Resources, University of Minnesota, St Paul, MN, United States; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia },
    ART_NUMBER = { 0063 },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1038/s41559-016-0063 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019265677&doi=10.1038%2fs41559-016-0063&partnerID=40&md5=b8530f3e4b2ab0ddac049ce6ff2a8b6a },
}

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