WilliamsButlerCavenderBaresEtAl2021

Reference

Williams, L.J., Butler, E.E., Cavender-Bares, J., Stefanski, A., Rice, K.E., Messier, C., Paquette, A., Reich, P.B. (2021) Enhanced light interception and light use efficiency explain overyielding in young tree communities. Ecology Letters, 24(5):996-1006. (Scopus )

Abstract

Diverse plant communities are often more productive than mono-specific ones. Several possible mechanisms underlie this phenomenon but their relative importance remains unknown. Here we investigated whether light interception alone or in combination with light use efficiency (LUE) of dominant and subordinate species explained greater productivity of mixtures relative to monocultures (i.e. overyielding) in 108 young experimental tree communities. We found mixed-species communities that intercepted more light than their corresponding monocultures had 84% probability of overyielding. Enhanced LUE, which arose via several pathways, also mattered: the probability of overyielding was 71% when, in a mixture, species with higher ‘inherent’ LUE (i.e. LUE in monoculture) intercepted more light than species with lower LUE; 94% when dominant species increased their LUE in mixture; and 79% when subordinate species increased their LUE. Our results suggest that greater light interception and greater LUE, generated by inter and intraspecific variation, together drive overyielding in mixed-species forests. © 2021 John Wiley & Sons Ltd.

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@ARTICLE { WilliamsButlerCavenderBaresEtAl2021,
    AUTHOR = { Williams, L.J. and Butler, E.E. and Cavender-Bares, J. and Stefanski, A. and Rice, K.E. and Messier, C. and Paquette, A. and Reich, P.B. },
    JOURNAL = { Ecology Letters },
    TITLE = { Enhanced light interception and light use efficiency explain overyielding in young tree communities },
    YEAR = { 2021 },
    NOTE = { cited By 0 },
    NUMBER = { 5 },
    PAGES = { 996-1006 },
    VOLUME = { 24 },
    ABSTRACT = { Diverse plant communities are often more productive than mono-specific ones. Several possible mechanisms underlie this phenomenon but their relative importance remains unknown. Here we investigated whether light interception alone or in combination with light use efficiency (LUE) of dominant and subordinate species explained greater productivity of mixtures relative to monocultures (i.e. overyielding) in 108 young experimental tree communities. We found mixed-species communities that intercepted more light than their corresponding monocultures had 84% probability of overyielding. Enhanced LUE, which arose via several pathways, also mattered: the probability of overyielding was 71% when, in a mixture, species with higher ‘inherent’ LUE (i.e. LUE in monoculture) intercepted more light than species with lower LUE; 94% when dominant species increased their LUE in mixture; and 79% when subordinate species increased their LUE. Our results suggest that greater light interception and greater LUE, generated by inter and intraspecific variation, together drive overyielding in mixed-species forests. © 2021 John Wiley & Sons Ltd. },
    AFFILIATION = { Department of Forest Resources, University of Minnesota, St Paul, MN 55108, United States; Department of Ecology, Evolution and Behavior, University of Minnesota, St Paul, MN 55108, United States; Extension Education, University of Florida, Fort Lauderdale, FL 33314, United States; Centre for Forest Research, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; Institut des sciences de la forêt tempérée, Université du Québec en Outaouais, Ripon, QC J0V 1V0, Canada; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW 2753, Australia },
    AUTHOR_KEYWORDS = { biodiversity–ecosystem function; complementarity; diversity–productivity; ecophysiology; forest productivity; functional diversity; IDENT; niche partitioning; photosynthetic light-response },
    DOCUMENT_TYPE = { Letter },
    DOI = { 10.1111/ele.13717 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85101903885&doi=10.1111%2fele.13717&partnerID=40&md5=98a754c094ccfdb576ac6bc739395a72 },
}

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