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Fast demographic traits promote high diversification rates of Amazonian trees.


ABSTRACT: The Amazon rain forest sustains the world's highest tree diversity, but it remains unclear why some clades of trees are hyperdiverse, whereas others are not. Using dated phylogenies, estimates of current species richness and trait and demographic data from a large network of forest plots, we show that fast demographic traits--short turnover times--are associated with high diversification rates across 51 clades of canopy trees. This relationship is robust to assuming that diversification rates are either constant or decline over time, and occurs in a wide range of Neotropical tree lineages. This finding reveals the crucial role of intrinsic, ecological variation among clades for understanding the origin of the remarkable diversity of Amazonian trees and forests.

SUBMITTER: Baker TR 

PROVIDER: S-EPMC4285998 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature

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Fast demographic traits promote high diversification rates of Amazonian trees.

Baker Timothy R TR   Pennington R Toby RT   Magallon Susana S   Gloor Emanuel E   Laurance William F WF   Alexiades Miguel M   Alvarez Esteban E   Araujo Alejandro A   Arets Eric J M M EJ   Aymard Gerardo G   de Oliveira Atila Alves AA   Amaral Iêda I   Arroyo Luzmila L   Bonal Damien D   Brienen Roel J W RJ   Chave Jerome J   Dexter Kyle G KG   Di Fiore Anthony A   Eler Eduardo E   Feldpausch Ted R TR   Ferreira Leandro L   Lopez-Gonzalez Gabriela G   van der Heijden Geertje G   Higuchi Niro N   Honorio Eurídice E   Huamantupa Isau I   Killeen Tim J TJ   Laurance Susan S   Leaño Claudio C   Lewis Simon L SL   Malhi Yadvinder Y   Marimon Beatriz Schwantes BS   Marimon Junior Ben Hur BH   Monteagudo Mendoza Abel A   Neill David D   Peñuela-Mora Maria Cristina MC   Pitman Nigel N   Prieto Adriana A   Quesada Carlos A CA   Ramírez Fredy F   Ramírez Angulo Hirma H   Rudas Agustin A   Ruschel Ademir R AR   Salomão Rafael P RP   de Andrade Ana Segalin AS   Silva J Natalino M JN   Silveira Marcos M   Simon Marcelo F MF   Spironello Wilson W   ter Steege Hans H   Terborgh John J   Toledo Marisol M   Torres-Lezama Armando A   Vasquez Rodolfo R   Vieira Ima Célia Guimarães IC   Vilanova Emilio E   Vos Vincent A VA   Phillips Oliver L OL  

Ecology letters 20140303 5


The Amazon rain forest sustains the world's highest tree diversity, but it remains unclear why some clades of trees are hyperdiverse, whereas others are not. Using dated phylogenies, estimates of current species richness and trait and demographic data from a large network of forest plots, we show that fast demographic traits--short turnover times--are associated with high diversification rates across 51 clades of canopy trees. This relationship is robust to assuming that diversification rates ar  ...[more]

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