Acknowledgements

We thank the thousands of contributors of the three odonate occurrence records databases: British Dragonfly Society (BDS), Bayerische Artenschutzkartierung (ASK), and Institució Catalana d’Història Natural (ICHN). David Hepper from BDS for his assistance with the database from GB. Bayerisches Landesamt für Umwelt for providing access to the ASK database. Pere Luque and the rest of the Oxygastra working group members for granting us access to the ICHN database. This study was supported by the Bavarian Ministry of Science and the Arts, via the Bavarian Climate Research Network (bayklif, project “mintbio”; RNF and CH). SP acknowledges support by the Alexander-von-Humboldt Foundation.

Author contributions

RNF: Conceptualization, data curation and analyses, lead writing. LC: manuscript revisions, SP: trait data provision, manuscript revisions. DZ: trait data provision, manuscript revisions. RB: trait data provision, manuscript revisions. CH: manuscript revisions, funding acquisition.