RT Journal Article T1 Changes in phenology mediate vertebrate population responses to temperature globally A1 Radchuk, Viktoriia A1 Jones, Carys V. A1 McLean, Nina A1 Charmantier, Anne A1 Teplitsky, Céline A1 Alisauskas, Ray A1 Ancona, Sergio A1 Anker-Nilssen, Tycho A1 Arcese, Peter A1 Arlt, Debora A1 Aubry, Lise M. A1 Bailey, Liam A1 Barbraud, Christophe A1 Berg, Karl S. A1 Berteaux, Dominique A1 Blumstein, Daniel T. A1 Bouwhuis, Sandra A1 Brose, Ulrich A1 Brouwer, Lyanne A1 Catry, Paulo A1 Chero, Guillaume A1 Chiaradia, Andre A1 Courtiol, Alexandre A1 Daunt, Francis A1 Delord, Karine A1 Dobson, F. Stephen A1 Drummond, Hugh A1 Eeva, Tapio A1 Fauteux, Dominique A1 Gauthier, Gilles A1 Genovart, Meritxell A1 Granadeiro, José P. A1 Hentati Sundberg, Jonas A1 Harris, Michael A1 Igual, José Manuel A1 Janzen, Fredric A1 Keogan, Katharine A1 Korpimäki, Erkki A1 Kramer-Schadt, Stephanie A1 Kruuk, Loeske E. B. A1 Lewis, Sue A1 Mallory, Mark A1 Martin, Julien A1 Massot, Manuel A1 Matthysen, Erik A1 Mihoub, Jean-Baptiste A1 Møller, Anders Pape A1 Nater, Chloé R. A1 Newell, Mark A1 Oppel, Steffen A1 Oro, Daniel A1 Ortega, Santiago A1 Parejo, Deseada A1 Pärt, Tomas A1 Payo Payo, Ana A1 Pemberton, Josephine A1 Phillips, Richard A. A1 Pillay, Neville A1 Avilés, Jesús M. A1 Rödel, Heiko G. A1 Sanz-Aguilar, Ana A1 Saraux, Claire A1 Schielzeth, Holger A1 Schradin, Carsten A1 Schroeder, Julia A1 Sheldon, Ben C. A1 Tavecchia, Giacomo A1 Tarwater, Corey E. A1 Veiberg, Vebjørn A1 Viblanc, Vincent A. A1 von Holst, Dietrich A1 Vriend, Stefan J. G. A1 Wanless, Sarah A1 Wheelwright, Nathaniel A1 Wood, Andrew G. A1 Sæther, Bernt-Erik A1 Jenouvrier, Stephanie A1 Clobert, Jean A1 Beissinger, Steven R. A1 Visser, Marcel E. A1 Reed, Thomas E. A1 van de Pol, Martijn AB Phenotypic responses to climate affect individual fitness, but the extent to which this translates into effects on population dynamics remains poorly understood. We assemble 213 time series on phenotypes and population sizes of wild vertebrates globally and match them with local climate data. Our meta-analysis shows that morphological traits are mostly climate insensitive. However, phenology is earlier in warmer-than-average years, which contributes positively to population growth in most species. At lower latitudes, temperature has weaker effects on phenology but stronger direct negative effects on population growth, likely because these populations are less capable of tracking climate via plasticity. Variation in the phenology-mediated effect of temperature on population growth cannot be explained by latitude, generation time, migratory mode, or diet. This suggests that simple relationships between species characteristics and population responses to warming may not occur in nature. Instead, we may need to embrace ecological complexity by considering local-scale predictors that capture intra-specific variation. PB Springer Nature SN 2041-1723 YR 2026 FD 2026-01-12 LK https://hdl.handle.net/20.500.14352/134548 UL https://hdl.handle.net/20.500.14352/134548 LA eng NO Radchuk, V., Jones, C.V., McLean, N. et al. Changes in phenology mediate vertebrate population responses to temperature globally. Nat Commun 17, 479 (2026). https://doi.org/10.1038/s41467-025-68172-8 NO This manuscript is a result of the sDiv-funded group sTraitChange and two workshops supported by sDiv (Synthesis Centre at German Center for Integrative Biodiversity Research (iDiv), Jena-Halle-Leipzig). We are grateful to the many researchers who collected field data and kindly shared them. Among others, we would like to thank Rocky Rockwell, Gregory Brown, I-Jiunn Cheng, Wolf, Vladimir Grosbois, Eric Hansen, Oliver Kruger, Andrew Cockburn, Scott Sillett, Heather Renner, Don Dragoo, William J. Sydeman, Cristina Rodríguez Juarez and the sTraitChange Data Consortium (a full list of consortium members appears in Supplementary Note 1). Without such contributions, this study would have been impossible. Sadly, M.H. and D.v.H. passed away during the development of this manuscript. Their long-term datasets are included in this study, and we are indebted to their invaluable contribution. We thank Thomas Banitz for his participation in the sTraitChange workshops and contributions to this study. We thank the UKCEH National Capability for UK Challenges programme NE/Y006208/1 and the Joint Nature Conservation Committee for financial support. This study is part of the long-term Studies in Ecology and Evolution (SEE-Life) program of the CNRS. We acknowledge funding from NSF ORCC project # 2222057 to S.J., NSF DEB project 0089473 to F.S.D., Research Council of Finland grant SA338180 to T.E., Swedish Research Council grant 2021-03892 to J.H.-S., ERC Starting Grant 639192-ALH to T.E.R., Research Council of Norway (project 223257) and the European Research Council (ERC-2022-AdG-101095997) to B.-E.S., Natural Environment Research Council, UK to J.P., Funding by Universidad Nacional Autónoma de México (PAPIIT IN211491, IN-200702-3, IN206610-3, IN205313 and IN205819), Consejo Nacional de Ciencia y Tecnología (81823, 47599, 34500-V, 4722-N9407, 104313) and National Geographic Society (991416) to H.D., Natural Environment Research Council, UK to L.K., BOF-Methusalem grant (48098) to E.M., UID/04292—Centro de Ciências do Mar e do Ambiente (MARE), LA/P/0069/2020 to the Associate Laboratory ARNET, and from the Falkland Islands Government to P.C., NSF DEB-1242510 to F.J., the Spanish Ministry of Science and EU FEDER funds (PID2021-122893NB-C21) to D.O., Spanish Ministerio de Ciencia e Innovación/AEI and EU-FEDER funds (PID2021-124731NB-I00, PIE202230I133) to M.G., and Fundação para a Ciência e a Tecnologia I.P. via cE3c (DOI: 10.54499/UIDB/00329/2020) and CHANGE (LA/P/0121/2020), national funds, and the co-funding by the FEDER, within the PT2020 Partnership Agreement and Compete 2020 to J.P.G. S.R.B. and K.S.B. acknowledge multiple grants from the National Science Foundation, Smithsonian Institution, and National Geographic Society, as well as support from the Maxwell-Hanrahan Foundation for parrotlet studies. Data from Pointe Géologie were collected with the logistical and financial support from Institut Polaire Français Paul-Emile Victor (IPEV), Terres Australes et Antarctiques Françaises, and Zone Atelier Antarctique et Terres Australes (LTSER France). Data from Montpellier was collected with long-term support from the OSU-OREME. Open Access funding enabled and organized by Projekt DEAL. NO Deutsches Zentrum für Integrative Biodiversitätsforschung NO UK Centre for Ecology & Hydrology NO Joint Nature Conservation Committee (Great Britain) NO National Science Foundation (U.S.) NO Research Council of Finland NO Swedish Research Council NO Research Council of Norway NO European Commission NO Natural Environment Research Council (Great Britain) NO Universidad Nacional Autónoma de México NO Consejo Nacional de Ciencia y Tecnología (Mexico) NO National Geographic Society (U.S.) NO Ghent University (Belgium) NO Centro de Ciências do Mar e do Ambiente (Portugal) NO Aquatic Research Network (Portugal) NO Falkland Islands Government NO Ministerio de Ciencia e Innovación (España) NO Fundação para a Ciência e a Tecnologia (Portugal) NO Maxwell-Hanrahan Foundation NO Institut Polaire Français Paul-Emile Victor NO Terres australes et antarctiques françaises NO Zone Atelier Antarctique et Terres Australes NO Hochschulrektorenkonferenz DS Docta Complutense RD 20 may 2026