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    Rights statement: This is the peer reviewed version of the following article: Pinho, BX, Tabarelli, M, ter Braak, C, et al. Functional biogeography of Neotropical moist forests: Trait–climate relationships and assembly patterns of tree communities. Global Ecol Biogeogr. 2021; 30: 1430– 1446. https://doi.org/10.1111/geb.13309 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1111/geb.13309 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

    Accepted author manuscript, 3.61 MB, PDF document

    Embargo ends: 24/05/22

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

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Functional biogeography of Neotropical moist forests: Trait–climate relationships and assembly patterns of tree communities

Research output: Contribution to journalJournal articlepeer-review

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  • B.X. Pinho
  • M. Tabarelli
  • C.J.F. ter Braak
  • S.J. Wright
  • V. Arroyo-Rodríguez
  • M. Benchimol
  • B.M.J. Engelbrecht
  • S. Pierce
  • P. Hietz
  • B.A. Santos
  • C.A. Peres
  • S.C. Müller
  • F. Bongers
  • M. Lohbeck
  • Ü. Niinemets
  • M. Slot
  • S. Jansen
  • D. Jamelli
  • R.A.F. de Lima
  • N. Swenson
  • R. Condit
  • F. Slik
  • M.A. Hernández-Ruedas
  • G. Mendes
  • M. Martínez-Ramos
  • N. Pitman
  • N. Kraft
  • N. Garwood
  • J.E. Guevara Andino
  • D. Faria
  • E. Chacón-Madrigal
  • E. Mariano-Neto
  • V. Júnior
  • J. Kattge
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<mark>Journal publication date</mark>30/07/2021
<mark>Journal</mark>Global Ecology and Biogeography
Issue number7
Volume30
Number of pages17
Pages (from-to)1430-1446
Publication StatusPublished
Early online date24/05/21
<mark>Original language</mark>English

Abstract

Aim: Here we examine the functional profile of regional tree species pools across the latitudinal distribution of Neotropical moist forests, and test trait–climate relationships among local communities. We expected opportunistic strategies (acquisitive traits, small seeds) to be overrepresented in species pools further from the equator, but also in terms of abundance in local communities in currently wetter, warmer and more seasonal climates. Location: Neotropics. Time period: Recent. Major taxa studied: Trees. Methods: We obtained abundance data from 471 plots across nine Neotropical regions, including c. 100,000 trees of 3,417 species, in addition to six functional traits. We compared occurrence-based trait distributions among regional species pools, and evaluated single trait–climate relationships across local communities using community abundance-weighted means (CWMs). Multivariate trait–climate relationships were assessed by a double-constrained correspondence analysis that tests both how CWMs relate to climate and how species distributions, parameterized by niche centroids in climate space, relate to their traits. Results: Regional species pools were undistinguished in functional terms, but opportunistic strategies dominated local communities further from the equator, particularly in the Northern Hemisphere. Climate explained up to 57% of the variation in CWM traits, with increasing prevalence of lower-statured, light-wooded and softer-leaved species bearing smaller seeds in more seasonal, wetter and warmer climates. Species distributions were significantly but weakly related to functional traits. Main conclusions: Neotropical moist forest regions share similar sets of functional strategies, from which local assembly processes, driven by current climatic conditions, select for species with different functional strategies. We can thus expect functional responses to climate change driven by changes in relative abundances of species already present regionally. Particularly, equatorial forests holding the most conservative traits and large seeds are likely to experience the most severe changes if climate change triggers the proliferation of opportunistic tree species.  

Bibliographic note

This is the peer reviewed version of the following article: Pinho, BX, Tabarelli, M, ter Braak, C, et al. Functional biogeography of Neotropical moist forests: Trait–climate relationships and assembly patterns of tree communities. Global Ecol Biogeogr. 2021; 30: 1430– 1446. https://doi.org/10.1111/geb.13309 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1111/geb.13309 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.