Benefits do not balance costs of biological invasions

Carneiro, Laís and Hulme, Philip E. and Cuthbert, Ross N. and Kourantidou, Melina and Bang, Alok and Haubrock, Phillip J. and Bradshaw, Corey J. A. and Balzani, Paride and Bacher, Sven and Latombe, Guillaume and Bodey, Thomas W. and Probert, Anna F. and Quilodrán, Claudio S. and Courchamp, Franck (2024) Benefits do not balance costs of biological invasions. BioScience.

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Abstract

Biological invasions have profound impacts on biodiversity and ecosystem functioning and services, resulting in substantial economic and health costs estimated in the trillions of dollars. Preventing and managing biological invasions are vital for sustainable development, aligning with the goals of the United Nations Biodiversity Conference. However, some invasive species also offer occasional benefits, leading to divergent perceptions among stakeholders and sectors. Claims that invasion science overlooks positive contributions threaten to hinder proper impact assessment and undermine management. Quantitatively balancing benefits and costs is misleading, because they coexist without offsetting each other. Any benefits also come at a price, affecting communities and regions differently over time. An integrated approach considering both costs and benefits is necessary for understanding and effective management of biological invasions.

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