Forecasting potential invaders to prevent future biological invasions worldwide
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(Published version)
Date
2024
Authors
Pili, A.N.
Leroy, B.
Measey, J.G.
Farquhar, J.E.
Toomes, A.
Cassey, P.
Chekunov, S.
Grenié, M.
van Winkel, D.
Maria, L.
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Journal article
Citation
Global Change Biology, 2024; 30(7):e17399-1-e17399-22
Statement of Responsibility
Arman N. Pili, Boris Leroy, John G. Measey, Jules E. Farquhar, Adam Toomes, Phillip Cassey, Sebastian Chekunov, Matthias Grenié, Dylan van Winkel, Lisa Maria, Mae Lowe L. Diesmos, Arvin C. Diesmos, Damaris Zurell, Franck Courchamp, David G. Chapple
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Abstract
The ever-increasing and expanding globalisation of trade and transport underpins the escalating global problem of biological invasions. Developing biosecurity infrastructures is crucial to anticipate and prevent the transport and introduction of invasive alien species. Still, robust and defensible forecasts of potential invaders are rare, especially for species without known invasion history. Here, we aim to support decision-making by developing a quantitative invasion risk assessment tool based on invasion syndromes (i.e., generalising typical attributes of invasive alien species). We implemented a workflow based on 'Multiple Imputation with Chain Equation' to estimate invasion syndromes from imputed datasets of species' life-history and ecological traits and macroecological patterns. Importantly, our models disentangle the factors explaining (i) transport and introduction and (ii) establishment. We showcase our tool by modelling the invasion syndromes of 466 amphibians and reptile species with invasion history. Then, we project these models to amphibians and reptiles worldwide (16,236 species [c.76% global coverage]) to identify species with a risk of being unintentionally transported and introduced, and risk of establishing alien populations. Our invasion syndrome models showed high predictive accuracy with a good balance between specificity and generality. Unintentionally transported and introduced species tend to be common and thrive well in human-disturbed habitats. In contrast, those with established alien populations tend to be large-sized, are habitat generalists, thrive well in human-disturbed habitats, and have large native geographic ranges. We forecast that 160 amphibians and reptiles without known invasion history could be unintentionally transported and introduced in the future. Among them, 57 species have a high risk of establishing alien populations. Our reliable, reproducible, transferable, statistically robust and scientifically defensible quantitative invasion risk assessment tool is a significant new addition to the suite of decision-support tools needed for developing a future-proof preventative biosecurity globally.
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© 2024 The Author(s). Global Change Biology published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.