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Senecio pseudoarnica Less. (Asteraceae): a new non-native species invading coastal areas in arctic and subarctic Europe

Abstract

We report the human-assisted spread of Senecio pseudoarnica, native to the northern coasts of North America and the Far East, to arctic and subarctic regions of Europe. Our findings indicate that the species, imported as a decorative plant, is currently rapidly spreading along coastal areas of Iceland and Norway. An exponential model comprehensively explained the increase in the number of known localities. Close climate matching between the native and non-native ranges, as well as practically exact environmental matching, are the main factors that facilitate the process of naturalisation and invasion. It is likely that a complete eradication of the species is already impossible, and further studies are needed to guide effective management strategies.

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Availability of data and material

New distribution data collected during this study are made available through GBIF: https://doi.org/10.15468/gf5nr5

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Acknowledgements

The authors wish to thank Hjörtur Þorbjörnsson (Botanical Garden in Reykjavík) and Hafsteinn Hafliðason for their assistance in locating sources on the first importation of the species to Iceland. Matthew Carlson (Alaska Center for Conservation Science, University of Alaska Anchorage) and Erling Ólafsson (Icelandic Institute of Natural History) are acknowledged for letting us use their photographs of the species.

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No funding was received for this work.

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Contributions

P.W. conceived and designed the study. P.W. analysed the data. P.W. and T.A. contributed data. P.W. and T.A. wrote the paper.

Corresponding author

Correspondence to Pawel Wasowicz.

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The authors declare no conflict of interest.

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Wasowicz, P., Alm, T. Senecio pseudoarnica Less. (Asteraceae): a new non-native species invading coastal areas in arctic and subarctic Europe. Biol Invasions 24, 1575–1583 (2022). https://doi.org/10.1007/s10530-022-02759-w

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  • DOI: https://doi.org/10.1007/s10530-022-02759-w

Keywords

  • Iceland
  • Norway
  • Senecio pseudoarnica
  • Invasive species
  • Arctic
  • Subarctic