Article (Scientific journals)
Global patterns and environmental drivers of forest functional composition
Bouchard, Elise; Searle, Eric B.; Drapeau, Pierre et al.
2024In Global Ecology and Biogeography, 33 (2), p. 303 - 324
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Keywords :
biogeography; climate; environmental gradients; functional traits; seed mass; species abundance; specific leaf area; trees; wood density; Global and Planetary Change; Ecology, Evolution, Behavior and Systematics; Ecology
Abstract :
[en] Aim: To determine the relationships between the functional trait composition of forest communities and environmental gradients across scales and biomes and the role of species relative abundances in these relationships. Location: Global. Time period: Recent. Major taxa studied: Trees. Methods: We integrated species abundance records from worldwide forest inventories and associated functional traits (wood density, specific leaf area and seed mass) to obtain a data set of 99,953 to 149,285 plots (depending on the trait) spanning all forested continents. We computed community-weighted and unweighted means of trait values for each plot and related them to three broad environmental gradients and their interactions (energy availability, precipitation and soil properties) at two scales (global and biomes). Results: Our models explained up to 60% of the variance in trait distribution. At global scale, the energy gradient had the strongest influence on traits. However, within-biome models revealed different relationships among biomes. Notably, the functional composition of tropical forests was more influenced by precipitation and soil properties than energy availability, whereas temperate forests showed the opposite pattern. Depending on the trait studied, response to gradients was more variable and proportionally weaker in boreal forests. Community unweighted means were better predicted than weighted means for almost all models. Main conclusions: Worldwide, trees require a large amount of energy (following latitude) to produce dense wood and seeds, while leaves with large surface to weight ratios are concentrated in temperate forests. However, patterns of functional composition within-biome differ from global patterns due to biome specificities such as the presence of conifers or unique combinations of climatic and soil properties. We recommend assessing the sensitivity of tree functional traits to environmental changes in their geographic context. Furthermore, at a given site, the distribution of tree functional traits appears to be driven more by species presence than species abundance.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Bouchard, Elise ;  Department of Biological Sciences, Centre for Forest Research (CFR), Université du Québec à Montréal, Montreal, Canada
Searle, Eric B. ;  Department of Biological Sciences, Centre for Forest Research (CFR), Université du Québec à Montréal, Montreal, Canada ; Ontario Forest Research Institute, Ontario Ministry of Natural Resources and Forestry, Sault Ste. Marie, Canada
Drapeau, Pierre ;  Department of Biological Sciences, Centre for Forest Research (CFR), Université du Québec à Montréal, Montreal, Canada
Liang, Jingjing ;  Forest Advanced Computing and Artificial Intelligence Lab (FACAI), Department of Forestry and Natural Resources, Purdue University, West Lafayette, United States
Gamarra, Javier G. P. ;  Forestry Division, Food and Agriculture Organization of the United Nations, Rome, Italy
Abegg, Meinrad 
Alberti, Giorgio 
Zambrano, Angelica Almeyda
Alvarez-Davila, Esteban 
Alves, Luciana F. 
Avitabile, Valerio 
Aymard, Gerardo 
Bastin, Jean-François  ;  Université de Liège - ULiège > TERRA Research Centre > Biodiversité et Paysage
Birnbaum, Philippe 
Bongers, Frans 
Bouriaud, Olivier 
Brancalion, Pedro 
Broadbent, Eben
Bussotti, Filippo 
Gatti, Roberto Cazzolla 
Češljar, Goran 
Chisholm, Chelsea 
Cienciala, Emil 
Clark, Connie J.
Corral-Rivas, José Javier 
Crowther, Thomas W. 
Dayanandan, Selvadurai
Decuyper, Mathieu 
de Gasper, André L. 
de-Miguel, Sergio 
Derroire, Géraldine 
DeVries, Ben
Djordjević, Ilija 
Van Do, Tran 
Dolezal, Jiri 
Fayle, Tom M. 
Fridman, Jonas 
Frizzera, Lorenzo 
Gianelle, Damiano 
Hemp, Andreas
Hérault, Bruno 
Herold, Martin 
Imai, Nobuo
Jagodziński, Andrzej M. 
Jaroszewicz, Bogdan 
Jucker, Tommaso 
Kepfer-Rojas, Sebastian 
Keppel, Gunnar 
Khan, Mohammed Latif 
Kim, Hyun Seok 
Korjus, Henn 
Kraxner, Florian 
Laarmann, Diana
Lewis, Simon 
Lu, Huicui 
Maitner, Brian S. 
Marcon, Eric 
Marshall, Andrew R. 
Mukul, Sharif A. 
Nabuurs, Gert-Jan 
Nava-Miranda, María Guadalupe 
Parfenova, Elena I. 
Park, Minjee 
Peri, Pablo L. 
Pfautsch, Sebastian 
Phillips, Oliver L. 
Piedade, Maria Teresa F. 
Piotto, Daniel 
Poulsen, John R. 
Poulsen, Axel Dalberg
Pretzsch, Hans 
Reich, Peter B. 
Rodeghiero, Mirco 
Rolim, Samir 
Rovero, Francesco
Saikia, Purabi 
Salas-Eljatib, Christian 
Schall, Peter 
Schepaschenko, Dmitry 
Schöngart, Jochen
Šebeň, Vladimír 
Sist, Plinio 
Slik, Ferry 
Souza, Alexandre F. 
Stereńczak, Krzysztof 
Svoboda, Miroslav 
Tchebakova, Nadezhda M. 
ter Steege, Hans 
Tikhonova, Elena V.
Usoltsev, Vladimir A.
Valladares, Fernando
Viana, Helder 
Vibrans, Alexander C. 
Wang, Hua-Feng
Westerlund, Bertil 
Wiser, Susan K. 
Wittmann, Florian 
Wortel, Verginia 
Zawiła-Niedźwiecki, Tomasz
Zhou, Mo
Zhu, Zhi-Xin
Zo-Bi, Irié C. 
Paquette, Alain ;  Department of Biological Sciences, Centre for Forest Research (CFR), Université du Québec à Montréal, Montreal, Canada
More authors (93 more) Less
Language :
English
Title :
Global patterns and environmental drivers of forest functional composition
Publication date :
February 2024
Journal title :
Global Ecology and Biogeography
ISSN :
1466-822X
eISSN :
1466-8238
Publisher :
John Wiley and Sons Inc
Volume :
33
Issue :
2
Pages :
303 - 324
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSERC - Natural Sciences and Engineering Research Council
Funding text :
This work was funded in part by a Natural Sciences and Engineering Research Council of Canada Discovery Grant to Alain Paquette. This work was also made possible by the Global Forest Biodiversity Database ( https://www.gfbinitiative.org/ ), which represents the work of over 200 independent investigators and their public and private funding agencies (see Appendix S13 Supplementary acknowledgements). The study was supported by the TRY initiative on plant traits ( http://www.try‐db .org). The TRY database is hosted at the Max Planck Institute for Biogeochemistry (MPI BGC, Germany) and supported by Future Earth and the German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig. We are thankful to Orane Mordacq and Cameron Daoust for their help in cleaning and processing the data as well as collecting functional trait values from literature, and Charlotte Langlois, Marine Fernandez and Maxime Paquette for preparing the manuscript. We would like to thank François Rousseu, Daniel Schoenig, Daniel Lesieur and Mélanie Desrochers, CFR professionals in statistics, database management and GIS.This work was funded in part by a Natural Sciences and Engineering Research Council of Canada Discovery Grant to Alain Paquette. This work was also made possible by the Global Forest Biodiversity Database (https://www.gfbinitiative.org/), which represents the work of over 200 independent investigators and their public and private funding agencies (see Appendix S13 Supplementary acknowledgements). The study was supported by the TRY initiative on plant traits (http://www.try-db.org). The TRY database is hosted at the Max Planck Institute for Biogeochemistry (MPI BGC, Germany) and supported by Future Earth and the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig. We are thankful to Orane Mordacq and Cameron Daoust for their help in cleaning and processing the data as well as collecting functional trait values from literature, and Charlotte Langlois, Marine Fernandez and Maxime Paquette for preparing the manuscript. We would like to thank François Rousseu, Daniel Schoenig, Daniel Lesieur and Mélanie Desrochers, CFR professionals in statistics, database management and GIS.
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