The role of recruitment and dispersal limitation in tree community assembly in Amazonian forests

Washington L. Oliveira, Marcelo B. Medeiros, Marcelo F. Simon, John Hay, Hans ter Steege

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Background: Species composition of plant communities is shaped by the interplay between dispersal limitation, environmental filters and stochastic events.

Aims: The aim of this work was to investigate the effects of dispersal limitation and environmental filtering on tree recruitment. To accomplish this, we employed the unified neutral theory of biodiversity and biogeography to examine migration within the metacommunity, defined as a set of interacting local communities linked by the dispersal of multiple potentially interacting species.

Methods: We sampled 12,975 individuals with dbh ≥ 1 cm in 26 1-ha permanent plots, including habitats of terra firme, transitional forests, várzea and campinarana, on the upper Madeira River, Brazilian Amazon.

Results: Campinarana drew individuals from outside the metacommunity species pool at a mean probability of recruitment of 0.06, a much lower probability than terra firme (0.31), transitional (0.21) and várzea forests (0.22). Environmental variables, such as water table depth, soil texture and fertility, were related to differences in community assembly.

Conclusions: Species abundance distribution and diversity patterns of plant assemblages in a large river landscape in the Amazon highlight the importance of environmental heterogeneity that conditions beta-diversity. The high variation in recruitment probabilities from the metacommunity species pool to local communities suggests high habitat variability in the process of maintaining patterns of local diversity.
Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalPlant Ecology and Diversity
Volume11
Issue number1
Early online date18 May 2018
DOIs
Publication statusPublished - 2018

Keywords

  • Environmental filtering
  • metacommunity
  • neutral models
  • tropical rain forest
  • species abundance

Cite this

Oliveira, Washington L. ; Medeiros, Marcelo B. ; Simon, Marcelo F. ; Hay, John ; ter Steege, Hans. / The role of recruitment and dispersal limitation in tree community assembly in Amazonian forests. In: Plant Ecology and Diversity. 2018 ; Vol. 11, No. 1. pp. 1-12.
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abstract = "Background: Species composition of plant communities is shaped by the interplay between dispersal limitation, environmental filters and stochastic events.Aims: The aim of this work was to investigate the effects of dispersal limitation and environmental filtering on tree recruitment. To accomplish this, we employed the unified neutral theory of biodiversity and biogeography to examine migration within the metacommunity, defined as a set of interacting local communities linked by the dispersal of multiple potentially interacting species.Methods: We sampled 12,975 individuals with dbh ≥ 1 cm in 26 1-ha permanent plots, including habitats of terra firme, transitional forests, v{\'a}rzea and campinarana, on the upper Madeira River, Brazilian Amazon.Results: Campinarana drew individuals from outside the metacommunity species pool at a mean probability of recruitment of 0.06, a much lower probability than terra firme (0.31), transitional (0.21) and v{\'a}rzea forests (0.22). Environmental variables, such as water table depth, soil texture and fertility, were related to differences in community assembly.Conclusions: Species abundance distribution and diversity patterns of plant assemblages in a large river landscape in the Amazon highlight the importance of environmental heterogeneity that conditions beta-diversity. The high variation in recruitment probabilities from the metacommunity species pool to local communities suggests high habitat variability in the process of maintaining patterns of local diversity.",
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The role of recruitment and dispersal limitation in tree community assembly in Amazonian forests. / Oliveira, Washington L.; Medeiros, Marcelo B.; Simon, Marcelo F.; Hay, John; ter Steege, Hans.

In: Plant Ecology and Diversity, Vol. 11, No. 1, 2018, p. 1-12.

Research output: Contribution to JournalArticleAcademicpeer-review

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