FN Archimer Export Format PT J TI Trait similarity in reef fish faunas across the world’s oceans BT AF McLean, Matthew Stuart-Smith, Rick D. Villeger, Sébastien AUBER, Arnaud Edgar, Graham J. MacNeil, M. Aaron LOISEAU, Nicolas Leprieur, Fabien Mouillot, David AS 1:1;2:2;3:7;4:4;5:2;6:1,5;7:3;8:8;9:8; FF 1:;2:;3:;4:PDG-RBE-HMMN-LRHBL;5:;6:;7:PDG-RBE-MARBEC-LHM;8:;9:; C1 Department of Biology, Dalhousie University, Halifax, NS, Canada Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia MARBEC, Univ Montpellier, CNRS, Institut Français de Recherche pour l’Exploitation de la Mer, IRD, 34095 Montpellier, France Institut Français de Recherche pour l’Exploitation de la Mer, Unité Halieutique de Manche et mer du Nord, 62321 Boulogne-sur-Mer, France Ocean Frontier Institute, Dalhousie University, Halifax, NS, Canada Institut Universitaire de France, 75005 Paris, France MARBEC, Univ Montpellier, CNRS, Institut Français de Recherche pour l’Exploitation de la Mer, IRD, 34095 Montpellier, France MARBEC, Univ Montpellier, CNRS, Institut Français de Recherche pour l’Exploitation de la Mer, IRD, 34095 Montpellier, France C2 UNIV DALHOUSIE, CANADA UNIV TASMANIA, AUSTRALIA IFREMER, FRANCE IFREMER, FRANCE UNIV DALHOUSIE, CANADA INST UNIV FRANCE, FRANCE CNRS, FRANCE UNIV MONTPELLIER, FRANCE SI BOULOGNE SETE SE PDG-RBE-HMMN-LRHBL PDG-RBE-MARBEC-LHM UM MARBEC IN WOS Ifremer UPR WOS Ifremer UMR WOS Cotutelle UMR copubli-france copubli-univ-france copubli-int-hors-europe IF 12.779 TC 46 UR https://archimer.ifremer.fr/doc/00684/79597/82292.pdf https://archimer.ifremer.fr/doc/00684/79597/82293.pdf LA English DT Article DE ;biogeography;community assembly;functional ecology;macroecology;phylogenetics AB Species’ traits, rather than taxonomic identities, determine community assembly and ecosystem functioning, yet biogeographic patterns have been far less studied for traits. While both environmental conditions and evolutionary history shape trait biogeography, their relative contributions are largely unknown for most organisms. Here, we explore the global biogeography of reef fish traits for 2,786 species from 89 ecoregions spanning eight marine realms with contrasting environmental conditions and evolutionary histories. Across realms, we found a common structure in the distribution of species traits despite a 10-fold gradient in species richness, with a defined “backbone” of 21 trait combinations shared by all realms globally, both temperate and tropical. Across ecoregions, assemblages under similar environmental conditions had similar trait compositions despite hosting drastically different species pools from separate evolutionary lineages. Thus, despite being separated by thousands of kilometers and millions of years of evolution, similar environments host similar trait compositions in reef fish assemblages worldwide. Our findings suggest that similar trait-based management strategies can be applied among regions with distinct species pools, potentially improving conservation outcomes across diverse jurisdictions. PY 2021 PD MAR SO Proceedings Of The National Academy Of Sciences Of The United States Of America SN 0027-8424 PU National Academy of Sciences VL 118 IS 12 UT 000631868600009 DI 10.1073/pnas.2012318118 ID 79597 ER EF