UmanaSwensonMarchandEtAl2021

Référence

Umaña, M.N., Swenson, N.G., Marchand, P., Cao, M., Lin, L., Zhang, C. (2021) Relating leaf traits to seedling performance in a tropical forest: building a hierarchical functional framework. Ecology, 102(7). (Scopus )

Résumé

Trait-based approaches have been extensively used in community ecology to provide a mechanistic understanding of the drivers of community assembly. However, a foundational assumption of the trait framework, traits relate to performance, has been mainly examined through univariate relationships that simplify the complex phenotypic integration of organisms. We evaluate a conceptual framework in which traits are organized hierarchically combining trait information at the individual- and species-level from biomass allocation and organ-level traits. We focus on photosynthetic traits and predict that the positive effects of increasing plant leaf mass on growth depend on species-level leaf traits. We modeled growth data on more than 1,500 seedlings from 97 seedling species from a tropical forest in China. We found that seedling growth increases with allocation to leaves (high leaf area ratio and leaf mass fraction) and this effect is accentuated for species with high specific leaf area and leaf area. Also, we found that light has a significant effect on growth, and this effect is additive with leaf allocation traits. Our work offers an approach to gain further understanding of the effects of traits on the whole plant-level growth via a hierarchical framework including organ-level and biomass allocation traits at species and individual levels. © 2021 by the Ecological Society of America

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@ARTICLE { UmanaSwensonMarchandEtAl2021,
    AUTHOR = { Umaña, M.N. and Swenson, N.G. and Marchand, P. and Cao, M. and Lin, L. and Zhang, C. },
    JOURNAL = { Ecology },
    TITLE = { Relating leaf traits to seedling performance in a tropical forest: building a hierarchical functional framework },
    YEAR = { 2021 },
    NOTE = { cited By 1 },
    NUMBER = { 7 },
    VOLUME = { 102 },
    ABSTRACT = { Trait-based approaches have been extensively used in community ecology to provide a mechanistic understanding of the drivers of community assembly. However, a foundational assumption of the trait framework, traits relate to performance, has been mainly examined through univariate relationships that simplify the complex phenotypic integration of organisms. We evaluate a conceptual framework in which traits are organized hierarchically combining trait information at the individual- and species-level from biomass allocation and organ-level traits. We focus on photosynthetic traits and predict that the positive effects of increasing plant leaf mass on growth depend on species-level leaf traits. We modeled growth data on more than 1,500 seedlings from 97 seedling species from a tropical forest in China. We found that seedling growth increases with allocation to leaves (high leaf area ratio and leaf mass fraction) and this effect is accentuated for species with high specific leaf area and leaf area. Also, we found that light has a significant effect on growth, and this effect is additive with leaf allocation traits. Our work offers an approach to gain further understanding of the effects of traits on the whole plant-level growth via a hierarchical framework including organ-level and biomass allocation traits at species and individual levels. © 2021 by the Ecological Society of America },
    AFFILIATION = { Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48019, United States; Department of Biological Sciences, University of Notre Dame, South Bend, IN 46556, United States; Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, Rouyn-Noranda, QC J9X 5E4, Canada; CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China; Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan, China },
    ART_NUMBER = { e03385 },
    AUTHOR_KEYWORDS = { biomass allocation traits; canopy openness; China; leaf area; leaf thickness; relative growth rates; seedlings; specific leaf area },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1002/ecy.3385 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107818264&doi=10.1002%2fecy.3385&partnerID=40&md5=d668ff84150b0fef94a58eb9cdd67f7b },
}

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