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Invasion trends: An interpretable measure of change is needed to support policy targets

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posted on 2024-02-27, 23:29 authored by Melodie McGeochMelodie McGeoch, Y Buba, E Arlé, J Belmaker, David ClarkeDavid Clarke, W Jetz, R Li, H Seebens, F Essl, Q Groom, E García-Berthou, B Lenzner, C Meyer, JR Vicente, JRU Wilson, M Winter
The Kunming-Montreal Global Biodiversity Framework (GBF) calls for a 50% reduction in rates of invasive alien species establishment by 2030. However, estimating changes in rates of introduction and establishment is far from straightforward, particularly on a national scale. Variation in survey effort over time, the absence of data on survey effort, and aspects of the invasion process itself interact in ways that make rate estimates from naive models of invasion trends inaccurate. To support progress toward robust global and national reporting against the GBF invasions target, we illustrate this problem using a combination of simulations, and global and national scale case studies. We provide recommendations and a clear set of steps that are needed for progress. These include routine collection of survey effort data as part of surveillance and monitoring protocols and working closely with researchers to develop meaningful estimates of change in biological invasions. Better awareness of this challenge and investment in developing robust approaches will be required from Parties if progress on Target 6 of the GBF is to be tracked and achieved.


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Conservation Letters





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© 2023 The Authors. Conservation Letters published by Wiley Periodicals LLC. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.