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Trait data from: "Evolutionary heritage influences Amazon tree ecology"

ForestPlots.net2016

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Fernanda Coelho de Souza, Kyle G. Dexter, Oliver L. Phillips, Roel J. W. Brienen, Jérôme Chave, David Galbraith, Gabriela López‐González, Abel Monteagudo‐Mendoza, R. Toby Pennington, Lourens Poorter, Miguel N. Alexiades, Esteban Álvarez‐Dávila, Ana Andrade, Luis E. O. C. Aragão, Alejandro Araujo‐Murakami, E.J.M.M. Arets, Aymard C. Gerardo A., Christopher Baraloto, Barroso Jorcely, Damien Bonal, René Boot, José Luís Camargo, James A. Comiskey, Fernando Cornejo Valverde, Plínio Barbosa de Camargo, Anthony Di Fiore, Fernando Elias, Terry L. Erwin, Ted R. Feldpausch, Leandro Valle Ferreira, Nykolaos M. Fyllas, Emanuel Gloor, Bruno Hérault, Rafael Herrera, Higuchi Niro, Eurídice N. Honorio Coronado, Timothy J. Killeen, William F. Laurance, Susan G. W. Laurance, Jon Lloyd, Thomas Ε. Lovejoy, Yadvinder Malhi, Leandro Maracahipes, Beatriz Schwantes Marimon, Ben Hur Marimon, Casimiro Mendoza, Paulo S. Morandi, David Neill, Percy Núñez Vargas, Edmar Almeida de Oliveira, Eddie Lenza de Oliveira, Walter A. Palacios, María Cristina Peñuela-Mora, Georgia Pickavance, Pipoly III, John J., Nigel C. A. Pitman, Adriana Prieto, Carlos Alberto Quesada, Hirma Ramírez‐Angulo, Agustín Rudas, Kalle Ruokolainen, Rafael P. Salomão, Marcos Silveira, Juliana Stropp, Ter Steege, Hans, Raquel Thomas‐Caesar, Van De Hout, Peter, Geertje van der Heijden, P.J. van der Meer, Rodolfo Vásquez, Simone Aparecida Vieira, Emilio Vilanova, Vincent Antoine Vos, Ophelia Wang, Kenneth R. Young, Roderick Zagt, Timothy R. Baker

Abstract

Lineages tend to retain ecological characteristics of their ancestors through time. However, for some traits, selection during evolutionary history may have also played a role in determining trait values. To address the relative importance of these processes requires large-scale quantification of traits and evolutionary relationships amongst species. The Amazonian tree flora comprises a high diversity of angiosperm lineages and species with widely differing life history characteristics, providing an excellent system to investigate the combined influences of evolutionary heritage and selection in determining trait variation. We used trait data related to the major axes of life history variation among tropical trees (e.g. growth and mortality rates) from 577 inventory plots in closed-canopy forest, mapped onto a phylogenetic hypothesis spanning >300 genera including all major angiosperm clades to test for evolutionary constraints on traits. We found significant phylogenetic signal for all traits, consistent with evolutionarily related genera having more similar characteristics than expected by chance. Although there is also evidence for repeated evolution of similar, pioneer and shade tolerant life history strategies within independent lineages, the existence of significant phylogenetic signal allowsLineages tend to retain ecological characteristics of their ancestors through time. However, for some traits, selection during evolutionary history may have also played a role in determining trait values. To address the relative importance of these processes requires large-scale quantification of traits and evolutionary relationships amongst species. The Amazonian tree flora comprises a high diversity of angiosperm lineages and species with widely differing life history characteristics, providing an excellent system to investigate the combined influences of evolutionary heritage and selection in determining trait variation. We used trait data related to the major axes of life history variation among tropical trees (e.g. growth and mortality rates) from 577 inventory plots in closed-canopy forest, mapped onto a phylogenetic hypothesis spanning >300 genera including all major angiosperm clades to test for evolutionary constraints on traits. We found significant phylogenetic signal for all traits, consistent with evolutionarily related genera having more similar characteristics than expected by chance. Although there is also evidence for repeated evolution of similar, pioneer and shade tolerant life history strategies within independent lineages, the existence of significant phylogenetic signal allows clearer predictions of the links between evolutionary diversity, ecosystem function and the response of tropical forests to global change. clearer predictions of the links between evolutionary diversity, ecosystem function and the response of tropical forests to global change.

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Abstract

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