Many plants naturalized as aliens abroad have also become more common within their native regions

Rashmi Paudel (), Trevor S. Fristoe, Nicole L. Kinlock, Amy J. S. Davis, Weihan Zhao, Hans Van Calster, Milan Chytrý, Jiří Danihelka, Guillaume Decocq, Luise Ehrendorfer - Schratt, Kun Guo, Wen-Yong Guo, Zdeněk Kaplan, Simon Pierce, Jan Wild, Wayne Dawson, Franz Essl, Holger Kreft, Jan Pergl, Petr Pyšek, Marten Winter and Mark van Kleunen
Additional contact information
Rashmi Paudel: University of Konstanz
Trevor S. Fristoe: University of Konstanz
Nicole L. Kinlock: University of Konstanz
Amy J. S. Davis: University of Konstanz
Weihan Zhao: University of Konstanz
Hans Van Calster: Research Institute for Nature and Forest
Milan Chytrý: Masaryk University
Jiří Danihelka: Masaryk University
Guillaume Decocq: University of Picardie Jules Verne
Luise Ehrendorfer - Schratt: University of Vienna
Kun Guo: Chinese Academy of Sciences
Wen-Yong Guo: East China Normal University
Zdeněk Kaplan: Czech Academy of Sciences
Simon Pierce: University of Milan
Jan Wild: Czech Academy of Sciences
Wayne Dawson: University of Liverpool
Franz Essl: University of Vienna
Holger Kreft: University of Göttingen
Jan Pergl: Institute of Botany
Petr Pyšek: Institute of Botany
Marten Winter: German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
Mark van Kleunen: University of Konstanz

Nature Communications, 2025, vol. 16, issue 1, 1-11

Abstract: Abstract Due to anthropogenic pressure some species have declined whereas others have increased within their native ranges. Simultaneously, many species introduced by humans have established self-sustaining populations elsewhere (i.e. have become naturalized aliens). Previous studies have shown that particularly plant species that are common within their native range have become naturalized elsewhere. However, how changes in native distributions correlate with naturalization elsewhere is unknown. We compare data on grid-cell occupancy of native vascular plant species over time for 10 European regions (countries or parts thereof). For nine regions, both early occupancy and occupancy change correlate positively with global naturalization success (quantified as naturalization in any administrative region and as the number of such regions). In other words, many plant species spreading globally as naturalized aliens are also expanding within their native regions. This implies that integrating data on native occupancy dynamics in invasion risk assessments might help prevent new invasions.

Date: 2025
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DOI: 10.1038/s41467-025-63293-6

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