RT journal article T1 Distance decay 2.0-A global synthesis of taxonomic and functional turnover in ecological communities A1 Graco-Roza, Caio A1 Aarnio, Sonja A1 Abrego, Nerea A1 Acosta, Alicia T.R. A1 Alahuhta, Janne A1 Altman, Jan A1 Angiolini, Claudia A1 Aroviita, Jukka A1 Attorre, Fabio A1 Baastrup-Spohr, Lars A1 Barrera-Alba, Jose J. A1 Belmaker, Jonathan A1 Biurrun, Idoia A1 Bonari, Gianmaria A1 Bruelheide, Helge A1 Burrascano, Sabina A1 Carboni, Marta A1 Cardoso, Pedro A1 Carvalho, José C. A1 Castaldelli, Giuseppe A1 Christensen, Morten A1 Correa, Gilsineia A1 Dembicz, Iwona A1 Dengler, Jürgen A1 Dolezal, Jiri A1 Domingos, Patricia A1 Erös, Tibor A1 Ferreira, Carlos E.L. A1 Filibeck, Goffredo A1 Floeter, Sergio R. A1 Friedlander, Alan M. A1 Gammal, Johanna A1 Gavioli, Anna A1 Gossner, Martin M. A1 Granot, Itai A1 Guarino, Riccardo A1 Gustafsson, Camilla A1 Hayden, Brian A1 He, Siwen A1 Heilmann-Clausen, Jacob A1 Heino, Jani A1 Hunter, John T. A1 Huszar, Vera L.M. A1 Janišová, Monika A1 Jyrkänkallio-Mikkola, Jenny A1 Kahilainen, Kimmo K. A1 Kemppinen, Julia A1 Kozub, Łukasz A1 Kruk, Carla A1 Franco Rodil, Iván A2 Biología K1 β-diversity K1 biogeography K1 environmental gradient K1 spatial distance K1 trait AB Aim: Understanding the variation in community composition and species abundances (i.e., beta-diversity) is at the heart of community ecology. A common approach to examine beta-diversity is to evaluate directional variation in community composition by measuring the decay in the similarity among pairs of communities along spatial or environmental distance. We provide the first global synthesis of taxonomic and functional distance decay along spatial and environmental distance by analysing 148 datasets comprising different types of organisms and environments.Location: Global.Time period: 1990 to present.Major taxa studied: From diatoms to mammals.Method: We measured the strength of the decay using ranked Mantel tests (Mantel r) and the rate of distance decay as the slope of an exponential fit using generalized linear models. We used null models to test whether functional similarity decays faster or slower than expected given the taxonomic decay along the spatial and environmental distance. We also unveiled the factors driving the rate of decay across the datasets, including latitude, spatial extent, realm and organismal features.Results: Taxonomic distance decay was stronger than functional distance decay along both spatial and environmental distance. Functional distance decay was random given the taxonomic distance decay. The rate of taxonomic and functional spatial distance decay was fastest in the datasets from mid-latitudes. Overall, datasets covering larger spatial extents showed a lower rate of decay along spatial distance but a higher rate of decay along environmental distance. Marine ecosystems had the slowest rate of decay along environmental distances.Main conclusions: In general, taxonomic distance decay is a useful tool for biogeographical research because it reflects dispersal-related factors in addition to species responses to climatic and environmental variables. Moreover, functional distance decay might be a cost-effective option for investigating community changes in heterogeneous environments. PB WILEY SN 1466-822X YR 2022 FD 2022-07 LK http://hdl.handle.net/10498/27150 UL http://hdl.handle.net/10498/27150 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 15-nov-2026