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dc.contributor.authorJaspers, Cornelia
dc.contributor.authorHuwer, Bastian
dc.contributor.authorAntajan, Elvire
dc.contributor.authorHosia, Aino
dc.contributor.authorHinrichsen, Hans-Harald
dc.contributor.authorBiastoch, Arne
dc.contributor.authorAngel, Dror
dc.contributor.authorAsmus, Ragnhild
dc.contributor.authorAugustin, Christina
dc.contributor.authorBagheri, Siamak
dc.contributor.authorBeggs, Steven E.
dc.contributor.authorBalsby, Thorsten J.S.
dc.contributor.authorBoersma, Maarten
dc.contributor.authorBonnet, Delphine
dc.contributor.authorChristensen, Jens T.
dc.contributor.authorDänhardt, Andreas
dc.contributor.authorDelpy, Floriane
dc.contributor.authorFalkenhaug, Tone
dc.contributor.authorFinenko, Galina
dc.contributor.authorFleming, Nicholas E.C.
dc.contributor.authorFuentes, Veronica
dc.contributor.authorGalil, Bella S.
dc.contributor.authorGittenberger, Arjan
dc.contributor.authorGriffin, Donal C.
dc.contributor.authorHaslob, Holger
dc.contributor.authorJavidpour, Jamileh
dc.contributor.authorKamburska, Lyudmila
dc.contributor.authorKube, Sandra
dc.contributor.authorLangenberg, Victor
dc.contributor.authorLehtiniemi, Maiju
dc.contributor.authorLombard, Fabien
dc.contributor.authorMalzahn, Arne
dc.contributor.authorMarambio, Macarena
dc.contributor.authorMihneva, Veselina
dc.contributor.authorMøller, Lene Friis
dc.contributor.authorNiermann, Ulrich
dc.contributor.authorOkyar, Melek Isinibilir
dc.contributor.authorÔzdemir, Zekiye Birinci
dc.contributor.authorPitois, Sophie
dc.contributor.authorReusch, Thorsten B.H.
dc.contributor.authorRobbens, Johan
dc.contributor.authorStefanova, Kremena
dc.contributor.authorThibault, Delphine
dc.contributor.authorvan der Veer, Henk W.
dc.contributor.authorVansteenbrugge, Lies
dc.contributor.authorvan Walraven, Lodewijk
dc.contributor.authorWoźniczka, Adam
dc.PublishedJaspers C, Huwer B, Antajan E, Hosia A, Hinrichsen H, Biastoch A, Angel D, Asmus R, et al. Ocean current connectivity propelling the secondary spread of a marine invasive comb jelly across western Eurasia. Global Ecology and Biogeography. 2018;27(7):814-827eng
dc.description.abstractAim: Invasive species are of increasing global concern. Nevertheless, the mechanisms driving further distribution after the initial establishment of non‐native species remain largely unresolved, especially in marine systems. Ocean currents can be a major driver governing range occupancy, but this has not been accounted for in most invasion ecology studies so far. We investigate how well initial establishment areas are interconnected to later occupancy regions to test for the potential role of ocean currents driving secondary spread dynamics in order to infer invasion corridors and the source–sink dynamics of a non‐native holoplanktonic biological probe species on a continental scale. Location: Western Eurasia. Time period: 1980s–2016. Major taxa studied: ‘Comb jelly’ Mnemiopsis leidyi. Methods: 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. Results: Ocean currents can explain secondary spread dynamics, matching observed range expansions and the timing of first occurrence of our holoplanktonic non‐native biological probe species, leading to invasion corridors in western Eurasia. In northern Europe, regional extinctions after cold winters were followed by rapid recolonizations at a speed of up to 2,000 km per season. Source areas hosting year‐round populations in highly interconnected regions can re‐seed genotypes over large distances after local extinctions. Main conclusions: Although the release of ballast water from container ships may contribute to the dispersal of non‐native species, our results highlight the importance of ocean currents driving secondary spread dynamics. Highly interconnected areas hosting invasive species are crucial for secondary spread dynamics on a continental scale. Invasion risk assessments should consider large‐scale connectivity patterns and the potential source regions of non‐native marine species.en_US
dc.rightsAttribution CC BY-NCeng
dc.subjectbiological invasionseng
dc.subjectgelatinous zooplanktoneng
dc.subjectinvasion corridorseng
dc.subjectinvasive specieseng
dc.subjectmarine connectivityeng
dc.subjectMnemiopsis leidyieng
dc.subjectrange expansioneng
dc.subjectsource populationseng
dc.subjectsource–sink dynamicseng
dc.titleOcean current connectivity propelling the secondary spread of a marine invasive comb jelly across western Eurasiaeng
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holderCopyright 2018 The Authorseng
dc.source.journalGlobal Ecology and Biogeography
dc.relation.projectNorges forskningsråd: 190304

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