Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/9898
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Using functional traits and phylogenetic trees to examine the assembly of tropical tree communities
Authors: Baraloto, Christopher
Hardy, Olivier J
Paine, C E Timothy
Dexter, Kyle G
Cruaud, Corinne
Dunning, Luke T
Gonzalez, Mailyn-Adriana
Molino, Jean-Francois
Sabatier, Daniel
Savolainen, Vincent
Chave, Jerome
Contact Email: c.e.t.paine@stir.ac.uk
Keywords: competition
determinants of plant community diversity and structure
environmental filtering
French Guiana
functional traits
limiting similarity
niche
phylogenetic signal
tropical forests
Issue Date: May-2012
Publisher: Wiley-Blackwell for the British Ecological Society
Citation: Baraloto C, Hardy OJ, Paine CET, Dexter KG, Cruaud C, Dunning LT, Gonzalez M, Molino J, Sabatier D, Savolainen V & Chave J (2012) Using functional traits and phylogenetic trees to examine the assembly of tropical tree communities, Journal of Ecology, 100 (3), pp. 690-701.
Abstract: 1. Niche theory proposes that species differences underlie both coexistence within communities and the differentiation in species composition among communities via limiting similarity and environmental filtering. However, it has been difficult to extend niche theory to species-rich communities because of the empirical challenge of quantifying niches for many species. This has motivated the development of functional and phylogeny-based approaches in community ecology, which represent two different means of approximating niche attributes. 2. Here, we assess the utility of plant functional traits and phylogenetic relationships in predicting community assembly processes using the largest trait and phylogenetic data base to date for any set of species-rich communities. 3. We measured 17 functional traits for all 4672 individuals of 668 tree species co-occurring in nine tropical rain forest plots in French Guiana. Trait variation was summarized into two ordination axes that reflect species niche overlap. 4. We also generated a dated molecular phylogenetic tree based on DNA sequencing of two plastid loci (rbcL and matK) comprising 97% of the individuals and 91% of the species in the plots. 5. We found that, on average, co-occurring species had greater functional and, to a lesser extent, phylogenetic similarity than expected by chance. 6. We also found that functional traits and their ordination loadings showed significant, albeit weak, phylogenetic signal, suggesting that phylogenetic distance provides pertinent information on niche overlap in tropical tree communities. 7. Synthesis. We provide the most comprehensive examination to date of the relative importance of environmental filtering and limiting similarity in structuring tropical tree communities. Our results confirm that environmental filtering is the overriding influence on community assembly in these species-rich systems.
Type: Journal Article
URI: http://hdl.handle.net/1893/9898
DOI Link: http://dx.doi.org/10.1111/j.1365-2745.2012.01966.x
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
Universite Libre de Bruxelles
Biological and Environmental Sciences
Universite Paul Sabatier, Toulouse, France
Commissariat a L’Energie Atomique–Institut de Genomique, France
Imperial College London
Universite Paul Sabatier, Toulouse, France
UMR AMAP, Montpellier, France
UMR AMAP, Montpellier, France
Imperial College London
Universite Paul Sabatier, Toulouse, France

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