University of Veterinary Medicine Vienna A species-level trait dataset of bats in Europe and beyond Knowledge of species' functional traits is essential for understanding biodiversity patterns, predicting the impacts of global environmental changes, and assessing the efficiency of conservation measures. Bats are major components of mammalian diversity and occupy a variety of ecological niches and geographic distributions. However, an extensive compilation of their functional traits and ecological attributes is still missing. Here we present EuroBaTrait 1.0, the most comprehensive and up-to-date trait dataset covering 47 European bat species. The dataset includes data on 118 traits including genetic composition, physiology, morphology, acoustic signature, climatic associations, foraging habitat, roost type, diet, spatial behaviour, life history, pathogens, phenology, and distribution. We compiled the bat trait data obtained from three main sources: (i) a systematic literature and dataset search, (ii) unpublished data from European bat experts, and (iii) observations from large-scale monitoring programs. EuroBaTrait is designed to provide an important data source for comparative and trait-based analyses at the species or community level. The dataset also exposes knowledge gaps in species, geographic and trait coverage, highlighting priorities for future data collection. en TEXT article Animals; Chiropteraphysiology; Ecosystem; Biodiversity; Mammals; Europe 2023 2023 Froidevaux, Jérémy S. P. (University of Stirling / Sorbonne-Université / University of Bristol) Voigt, Christian C. (Leibniz Institute for Zoo and Wildlife Research) Novella-Fernandez, Roberto (Technical University of Munich) Nistreanu, Victoria (Institute of Zoology) Mifsud, Clare M. (University of Malta) Mata, Vanessa A. (Universidade do Porto) Marmet, Julie (Sorbonne-Université) Mariton, Léa (Sorbonne-Université) Lesiński, Grzegorz (Warsaw University of Life Sciences) Leroux, Camille (Sorbonne-Université / Auddicé Biodiversité- ZAC du Chevalement) Legras, Gaëlle (Sorbonne-Université) Laforge, Alexis (Sorbonne-Université) Razgour, Orly (University of Exeter) Korine, Carmi (Ben-Gurion University of the Negev) Kaňuch, Peter (Slovak Academy of Sciences) Juste, Javier (Estación Biológica de Doñana / CIBER de Epidemiología y Salud Pública) Julien, Jean-François (Sorbonne-Université) Ibáñez, Carlos (Estación Biológica de Doñana) Hill, Davina L. (University of Glasgow) Hamidovic, Daniela (Croatian Ministry of Economy and Sustainable Development / Croatian Biospeleological Society) Furmankiewicz, Joanna (University of Wroclaw) Fereidouni, Sasan (University of Veterinary Medicine Vienna) Eldegard, Katrine (Norwegian University of Life Sciences) Vella, Adriana (University of Malta) Devaux, Tiphaine (Sorbonne-Université) Dechmann, Dina K. N. (Max Planck Institute of Animal Behavior / University of Konstanz) Cantú-Salazar, Lisette (Luxembourg Institute of Science and Technology) Bas, Yves (Sorbonne-Université / Université Montpellier) Barré, Kévin (Sorbonne-Université) Ancillotto, Leonardo (Università degli Studi di Napoli Federico II) Amorim, Francisco (Universidade do Porto) Alberdi, Antton (University of Copenhagen) Dekker, Jasja (Jasja Dekker Dierecologie BV) Russo, Danilo (Università degli Studi di Napoli) Uhrin, Marcel (Šafárik University in Košice) Department, Clare (Norwegian University of Science and Technology / University of the Sunshine Coast) Santini, Luca (Sapienza University of Rome) Pacifici, Michela (Sapienza University of Rome) Le Viol, Isabelle (Sorbonne-Université) Kerbiriou, Christian (Sorbonne-Université) Benítez-López, Ana (Estación Biológica de Doñana / University of Granada) Toshkova, Nia (Bulgarian Academy of Sciences) Barbaro, Luc (Sorbonne-Université / University of Toulouse) Sørås, Rune (Norwegian University of Science and Technology) Ruczyński, Ireneusz (Polish Academy of Sciences) Roemer, Charlotte (Sorbonne-Université / Université de Montpellier) Roche, Niamh (Bat Conservation Ireland) Rebelo, Hugo (Universidade do Porto) Nature Portfolio