Evolutionary heritage influences amazon tree ecology

Fernanda Coelho De Souza*, Kyle G. Dexter, Oliver L. Phillips, Roel J.W. Brienen, Jerome Chave, David R. Galbraith, Gabriela Lopez Gonzalez, Abel Monteagudo Mendoza, R. Toby Pennington, Lourens Poorter, E.J.M.M. Arets, Rene G.A. Boot, Peter J. van der Meer

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

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 among 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 more than 300 genera including all major angiosperm clades to test for evolutionary constraints on traits. We found significant phylogenetic signal (PS) 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 pioneer and shade tolerant lifehistory strategies within independent lineages, the existence of significant PS allows clearer predictions of the links between evolutionary diversity, ecosystem function and the response of tropical forests to global change.

Original languageEnglish
Article number20161587
JournalProceedings of the Royal Society. B: Biological Sciences
Volume283
Issue number1844
DOIs
Publication statusPublished - 2016

    Fingerprint

Keywords

  • Convergent evolution
  • Divergent selection
  • Phylogenetic signal
  • Trait
  • Tropical tree

Cite this

De Souza, F. C., Dexter, K. G., Phillips, O. L., Brienen, R. J. W., Chave, J., Galbraith, D. R., ... van der Meer, P. J. (2016). Evolutionary heritage influences amazon tree ecology. Proceedings of the Royal Society. B: Biological Sciences, 283(1844), [20161587]. https://doi.org/10.1098/rspb.2016.1587