作者
Helge Bruelheide,Jürgen Dengler,Oliver Purschke,Jonathan Lenoir,Borja Jiménez‐Alfaro,S.M. Hennekens,Zoltán Botta‐Dukát,Milan Chytrý,Richard Field,Florian Jansen,Jens Kattge,Valério D. Pillar,Franziska Schrodt,Miguel D. Mahecha,Robert K. Peet,Brody Sandel,Peter M. van Bodegom,Jan Altman,Estebán Álvarez,Mohammed Abu Sayed Arfin Khan,Fabio Attorre,Isabelle Aubin,Christopher Baraloto,Jorcely Barroso,Marijn Bauters,Erwin Bergmeier,Idoia Biurrun,Anne D. Bjorkman,Benjamin Blonder,Andraž Čarni,Luis Cayuela,Dylan Craven,Matteo Dainese,Dylan Craven,Matteo Dainese,Géraldine Derroire,Jiří Doležal,William Farfán-Ríos,Jiří Doležal,William Farfán-Ríos,Ted R. Feldpausch,Greg Guerin,Álvaro G. Gutiérrez,Sylvia Haider,Álvaro G. Gutiérrez,Sylvia Haider,Bruno Hérault,Pedro Higuchi,Bruno Hérault,Pedro Higuchi,Anke Jentsch,Jürgen Homeier,Zygmunt Kącki,Norbert Jürgens,Zygmunt Kącki,Michael Kleyer,Michael Kessler,A. Yu. Korolyuk,Ingolf Kuhn,A. Yu. Korolyuk,Frederic Lens,Jacqueline Loos,Frederic Lens,Jacqueline Loos,Frédérique Louault,Mariyana Lyubenova,Maurizio Mencuccini,Corrado Marcenò,Maurizio Mencuccini,Isla H. Myers‐Smith,David Neill,Isla H. Myers‐Smith,David Neill,Josep Peñuelas,Kate H. Orwin,W.A. Ozinga,Oliver L. Phillips,Meelis Pärtel,Petr Petřík,Oliver L. Phillips,Meelis Pärtel,Francesco Maria Sabatini,Jordi Sardans,Arthur Vinícius Rodrigues,Francesco Sabatini,Javier E. Silva‐Espejo,Marcos Silveira,Anita K. Smyth,Maria Sporbert,Marcos Silveira,Zhiyao Tang,Juliana Stropp,Ioannis Tsiripidis,Kiril Vassilev,Cyrille Violle,Risto Virtanen,Evan Weiher,Erik Welk,Risto Virtanen,Marten Winter,Erik Welk,Ute Becker
摘要
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.