Economic costs of invasive non-native species in urban areas: An underexplored financial drain

Gustavo Heringer* (Corresponding Author), Romina D. Fernandez, Alok Bang, Marion Cordonnier, Ana Novoa, Bernd Lenzner, César Capinha, David Renault, David Roiz, Desika Moodley, Elena Tricarico, Kathrin Holenstein, Melina Kourantidou, Natalia I. Kirichenko, José Ricardo Pires Adelino, Romina D. Dimarco, Thomas W. Bodey, Yuya Watari, Franck Courchamp

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Urbanization is an important driver of global change associated with a set of environmental modifications that affect the introduction and distribution of invasive non-native species (species with populations transported by humans beyond their natural biogeographic range that established and are spreading in their introduced range; hereafter, invasive species). These species are recognized as a cause of large ecological and economic losses. Nevertheless, the economic impacts of these species in urban areas are still poorly understood. Here we present a synthesis of the reported economic costs of invasive species in urban areas using the global InvaCost database, and demonstrate that costs are likely underestimated. Sixty-one invasive species have been reported to cause a cumulative cost of US$ 326.7 billion in urban areas between 1965 and 2021 globally (average annual cost of US$ 5.7 billion). Class Insecta was responsible for >99 % of reported costs (US$ 324.4 billion), followed by Aves (US$ 1.4 billion), and Magnoliopsida (US$ 494 million). The reported costs were highly uneven with the sum of the five costliest species representing 80 % of reported costs. Most reported costs were a result of damage (77.3 %), principally impacting public and social welfare (77.9 %) and authorities-stakeholders (20.7 %), and were almost entirely in terrestrial environments (99.9 %). We found costs reported for 24 countries. Yet, there are 73 additional countries with no reported costs, but with occurrences of invasive species that have reported costs in other countries. Although covering a relatively small area of the Earth's surface, urban areas represent about 15 % of the total reported costs attributed to invasive species. These results highlight the conservative nature of the estimates and impacts, revealing important biases present in the evaluation and publication of reported data on costs. We emphasize the urgent need for more focused assessments of invasive species' economic impacts in urban areas.
Original languageEnglish
Article number170336
Number of pages12
JournalScience of the Total Environment
Volume917
Early online date5 Feb 2024
DOIs
Publication statusPublished - 1 Mar 2024

Bibliographical note

Acknowledgments
The authors acknowledge the French National Research Agency (ANR-14-CE02-0021) and the BNP-Paribas Foundation Climate Initiative for funding the Invacost project that allowed the construction of the InvaCost database. The present work was conducted following a workshop funded by the AXA Research Fund Chair of Invasion Biology and is part of the AlienScenario project funded by BiodivERsA and Belmont-Forum call 2018 on a biodiversity scenario. We also acknowledge Dr. Christophe Diagne for the important contributions during the development of this work, and all researchers and environmental managers who kindly answered our request for information about the costs of invasive species. GH thanks Alexander von Humboldt Foundation and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (Capes) – Finance code 001 for supporting his postdoctoral research. KH has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 766417. DRe thanks InEE-CNRS for the support received for the network GdR 3647 CNRS ‘Invasions Biologiques’. AN and DM were supported by EXPRO grant no. 19-28807X (Czech Science Foundation) and long-term research development project RVO 67985939 (Czech Academy of Sciences), NIK was partially supported by the Russian Science Foundation (project No. 22-16-00075; national literature review) and the Sukachev Institute of Forest SB RAS (the basic project, grant No. FWES-2024-0029; database contribution). ET acknowledges the support of the Project funded under the National Recovery and Resilience Plan (NRRP), Mission 4 Component 2 Investment 1.4 - Call for tender No. 3138 of 16 December 2021, rectified by Decree n. 3175 of 18 December 2021 of the Italian Ministry of University and Research funded by the European Union – NextGenerationEU; Award Number: Project code CNS 00000033, Concession Decree No. 1034 of 17 June 2022 adopted by the Italian Ministry of University and Research, CUP J83C22000870007 and B833C22002910001, Project title “National Biodiversity Future Center - NBFC”.

Keywords

  • Anthropogenic activity
  • Biological invasion
  • Economic impact
  • Urban ecosystem
  • Urbanization
  • InvaCost

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