Based on 12,400 geo‐referenced occurrence data, we reconstruct the invasion history of M. leidyi in western Eurasia. We model ocean currents and calculate their stability to match the temporal and spatial spread dynamics with large‐scale connectivity patterns via ocean currents. Additionally, genetic markers are used to test the predicted connectivity between subpopulations.

Supplement to: Jaspers, Cornelia; Huwer, Bastian; Antajan, Elvire; Hosia, Aino; Hinrichsen, Hans-Harald; Biastoch, Arne; Angel, Dror; Asmus, Ragnhild; Augustin, Christina B; Bagheri, Siamak; Beggs, Steven E; Balsby, Thorsten J S; Boersma, Maarten; Bonnet, Delphine; Christensen, Jens T; Dänhardt, Andreas; Delpy, Floriane; Falkenhaug, Tone; Finenko, Galina A; Fleming, Nicholas E C; Fuentes, Veronica; Galil, Bella S; Gittenberger, Arjan; Griffin, Donal C; Haslob, Holger; Javidpour, Jamileh; Kamburska, Lyudmila; Kube, S; Langenberg, Victor T; Lehtiniemi, Maiju; Lombard, Fabien; Malzahn, Arne; Marambio, Macarena; Mihneva, Vesselina; Møller, Lene Friis; Niermann, U; Okyar, Melek Isinibilir; Özdemir, Zekiye Birinci; Pitois, Sophie; Reusch, Thorsten B H; Robbens, Johan; Stefanova, Kremena; Thibault, Delphine; van der Veer, H W; Vansteenbrugge, Lies; van Walraven, Lodewijk; Woźniczka, Adam (2018): Ocean current connectivity propelling the secondary spread of a marine invasive comb jelly across western Eurasia. Global Ecology and Biogeography, 27(7), 814-827