Global trait–environment relationships of plant communities

Helge Bruelheide 1 Jurgen Dengler 2 Oliver Purschke 3 Jonathan Lenoir 4 Borja Jiménez-Alfaro 5 Stephan Hennekens 6 Zoltán Botta-Dukát Milan Chytrý 7 Richard Field Florian Jansen Jens Kattge 8 Valério Pillar 9 Franziska Schrodt Miguel Mahecha Robert Peet Brody Sandel Peter van Bodegom 10 Jan Altman Esteban Alvarez-Davila 11 Mohammed Arfin Khan Fabio Attorre Isabelle Aubin Christopher Baraloto 12 Jorcely Barroso 13 Marijn Bauters Erwin Bergmeier Idoia Biurrun Anne Bjorkman Benjamin Blonder 14 Andraž Čarni 15 Luis Cayuela 16 Tomáš Černý J. Hans C. Cornelissen 17 Dylan Craven Matteo Dainese 18 Géraldine Derroire 19 Michele de Sanctis Sandra Díaz Jiří Doležal William Farfan-Rios Ted Feldpausch Nicole Fenton Eric Garnier 20 Greg Guerin Alvaro Gutiérrez Sylvia Haider Tarek Hattab 21 Greg Henry Bruno Hérault 12 Pedro Higuchi Norbert Hölzel 22 Jürgen Homeier 23 Anke Jentsch 24 Norbert Jürgens Zygmunt Kącki Dirk Karger Michael Kessler 25 Michael Kleyer 26 Ilona Knollová Andrey Korolyuk Ingolf Kuhn 27 Daniel Laughlin Frederic Lens 28 Jacqueline Loos 29 Frédérique Louault 30 Mariyana Lyubenova Yadvinder Malhi 31 Corrado Marcenò Maurizio Mencuccini 32 Jonas Müller Jérôme Munzinger 33 Isla Myers-Smith David Neill 34 Ülo Niinemets 35 Kate Orwin Wim Ozinga 36 Josep Peñuelas 37 Aaron Pérez-Haase Petr Petřík Oliver Phillips Meelis Pärtel 38 Peter Reich 39 Christine Romermann 40 Arthur Rodrigues Francesco Maria Sabatini Jordi Sardans 41 Marco Schmidt Gunnar Seidler 42 Javier Eduardo Silva Espejo Marcos Silveira 13 Anita Smyth Maria Sporbert Jens-Christian Svenning 43 Zhiyao Tang Raquel Thomas Ioannis Tsiripidis 44 Kiril Vassilev Cyrille Violle 20 Risto Virtanen 45 Evan Weiher 46 Erik Welk 42 Karsten Wesche 47 Marten Winter 48 Christian Wirth 49 Ute Jandt 50
Abstract : Plant functional traits directly affect ecosystem functions. At the species level, trait combinations depend on trade-offs representing different ecological strategies, but at the community level trait combinations are expected to be decoupled from these trade-offs because different strategies can facilitate co-existence within communities. A key question is to what extent community-level trait composition is globally filtered and how well it is related to global versus local environmental drivers. Here, we perform a global, plot-level analysis of trait–environment relationships, using a database with more than 1.1 million vegetation plots and 26,632 plant species with trait information. Although we found a strong filtering of 17 functional traits, similar climate and soil conditions support communities differing greatly in mean trait values. The two main community trait axes that capture half of the global trait variation (plant stature and resource acquisitiveness) reflect the trade-offs at the species level but are weakly associated with climate and soil conditions at the global scale. Similarly, within-plot trait variation does not vary systematically with macro-environment. Our results indicate that, at fine spatial grain, macro-environmental drivers are much less important for functional trait composition than has been assumed from floristic analyses restricted to co-occurrence in large grid cells. Instead, trait combinations seem to be predominantly filtered by local-scale factors such as disturbance, fine-scale soil conditions, niche partitioning and biotic interactions.
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Submitted on : Wednesday, November 6, 2019 - 9:49:51 PM
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Helge Bruelheide, Jurgen Dengler, Oliver Purschke, Jonathan Lenoir, Borja Jiménez-Alfaro, et al.. Global trait–environment relationships of plant communities. Nature Ecology & Evolution, Nature, 2018, 2 (12), pp.1906-1917. ⟨10.1038/s41559-018-0699-8⟩. ⟨hal-02352596⟩

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