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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Environmental factors predict community functional composition in Amazonian forests
Authors: Fortunel, Claire
Paine, C E Timothy
Fine, Paul V A
Kraft, Nathan J B
Baraloto, Christopher
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Keywords: Amazonian landscape
climatic and soil gradients
determinants of plant community diversity and structure
environmental filtering
functional traits
tree communities
tropical forests
Issue Date: Jan-2014
Publisher: Wiley Blackwell for the British Ecological Society
Citation: Fortunel C, Paine CET, Fine PVA, Kraft NJB & Baraloto C (2014) Environmental factors predict community functional composition in Amazonian forests, Journal of Ecology, 102 (1), pp. 145-155.
Abstract: 1. The consequences of biodiversity loss for ecosystem services largely depend on the functional identities of extirpated species. However, poor descriptions of spatial patterns of community functional composition across landscapes hamper accurate predictions, particularly in highly diverse tropical regions. Therefore, understanding how community functional composition varies across environmental gradients remains an important challenge. 2. We sampled 15 functional traits in 800 Neotropical tree species across 13 forest plots representative of the broad climatic and soil gradients encompassed by three widespread lowland forest habitats (terra firme forests on clay-rich soils, seasonally flooded forests and white-sand forests) at opposite ends of Amazonia (Peru and French Guiana). We combined univariate and multivariate approaches to test the magnitude and predictability of environmental filtering on community leaf and wood functional composition. 3. Directional shifts in community functional composition correlated with environmental changes across the 13 plots, with denser leaves, stems and roots in forests occurring in environments with limited water and soil-nutrient availability. Critically, these relationships allowed us to accurately predict the functional composition of 61 additional forest plots from environmental data alone. 4. Synthesis. Environmental filtering consistently shapes the functional composition of highly diverse tropical forests at large scales across the terra firme, seasonally flooded and white-sand forests of lowland Amazonia. Environmental factors drive and allow the prediction of variation in community functional composition among habitat types in Amazonian forests.
Type: Journal Article
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Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: UMR "Ecologie des Forêts de Guyane", French Guiana
Biological and Environmental Sciences
University of California, Berkeley
University of Maryland
UMR "Ecologie des Forêts de Guyane", French Guiana

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