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Título: | An evolutionary perspective on leaf economics: phylogenetics of leaf mass per area in vascular plants | Autor: | Flores, Olivier Garnier, Eric Wright, Ian J. Reich, Peter B. Pierce, Simon Dìaz, Sandra Pakeman, Robin J. Rusch, Graciela M. Bernard-Verdier, Maud Testi, Baptiste Bakker, Jan P. Bekker, Renée M. Cerabolini, Bruno E. L. Ceriani, Roberta M. Cornu, Guillaume Cruz, Pablo Delcamp, Matthieu Dolezal, Jiri Eriksson, Ove Fayolle, Adeline Freitas, Helena Golodets, Carly Gourlet-Fleury, Sylvie Hodgson, John G. Brusa, Guido Kleyer, Michael Kunzmann, Dieter Lavorel, Sandra Papanastasis, Vasilios P. Pérez-Harguindeguy, Natalia Vendramini, Fernanda Weiher, Evan |
Palavras-chave: | Brownian model; functional trait; Ornstein– Uhlenbeck model; phenotypic evolution | Data: | Jul-2014 | Editora: | Wiley-Blackwell | Projeto: | ANR project A-BI-ME (Activit es humaines, dynamique et gestion de la BIodiversit e en milieu MEditerran een, ANR-05-BDIV-014, 2006– 2008) | Título da revista, periódico, livro ou evento: | Ecology and Evolution | Volume: | 4 | Número: | 14 | Resumo: | In plant leaves, resource use follows a trade-off between rapid resource capture and conservative storage. This "worldwide leaf economics spectrum" consists of a suite of intercorrelated leaf traits, among which leaf mass per area, LMA, is one of the most fundamental as it indicates the cost of leaf construction and light-interception borne by plants. We conducted a broad-scale analysis of the evolutionary history of LMA across a large dataset of 5401 vascular plant species. The phylogenetic signal in LMA displayed low but significant conservatism, that is, leaf economics tended to be more similar among close relatives than expected by chance alone. Models of trait evolution indicated that LMA evolved under weak stabilizing selection. Moreover, results suggest that different optimal phenotypes evolved among large clades within which extremes tended to be selected against. Conservatism in LMA was strongly related to growth form, as were selection intensity and phenotypic evolutionary rates: woody plants showed higher conservatism in relation to stronger stabilizing selection and lower evolutionary rates compared to herbaceous taxa. The evolutionary history of LMA thus paints different evolutionary trajectories of vascular plant species across clades, revealing the coordination of leaf trait evolution with growth forms in response to varying selection regimes. | URI: | https://hdl.handle.net/10316/109396 | ISSN: | 2045-7758 | DOI: | 10.1002/ece3.1087 | Direitos: | openAccess |
Aparece nas coleções: | I&D CFE - Artigos em Revistas Internacionais |
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Ecology and Evolution - 2014 - Flores - An evolutionary perspective on leaf economics phylogenetics of leaf mass per area.pdf | 462.46 kB | Adobe PDF | Ver/Abrir |
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