Kourantidou M. auteur aut IRD Haubrock P. J. auteur aut IRD Cuthbert R. N. auteur aut IRD Bodey T. W. auteur aut IRD Lenzner B. auteur aut IRD Gozlan Rodolphe auteur aut IRD Nunez M. A. auteur aut IRD Salles J. M. auteur aut IRD Diagne C. auteur aut IRD Courchamp F. auteur aut IRD text journalArticle eng text/pdf born digital access In addition to being a major threat to biodiversity and ecosystem functioning, biological invasions also have profound impacts on economies and human wellbeing. However, the threats posed by invasive species often do not receive adequate attention and lack targeted management. In part, this may result from different or even ambivalent perceptions of invasive species which have a dual effect for stakeholders-being simultaneously a benefit and a burden. For these species, literature that synthesizes best practice is very limited, and analyses providing a comprehensive understanding of their economics are generally lacking. This has resulted in a critical gap in our understanding of the underlying trade-offs surrounding management efforts and approaches. Here, we explore qualitative trends in the literature for invasive species with dual effects, drawing from both the recently compiled InvaCost database and international case studies. The few invasive species with dual roles in InvaCost provide evidence for a temporal increase in reporting of costs, but with benefits relatively sporadically reported alongside costs. We discuss methods, management, assessment and policy frameworks dedicated to these species, along with lessons learned, complexities and persisting knowledge gaps. Our analysis points at the need to enhance scientific understanding of those species through inter- and cross-disciplinary efforts that can help advance their management. specialized Double-edge invasive alien species Benefits Costs InvaCost Management Trade-offs Policies Conflict 021 098 036 [Early access] [22 ] 2022 1387-3547 https://www.documentation.ird.fr/hor/fdi:010083955 10.1007/s10530-021-02727-w 1387-3547 [F B010083955] https://www.documentation.ird.fr/hor/fdi:010083955 https://www.documentation.ird.fr/intranet/publi/2022-02/010083955.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2022-02-04 2025-02-24 fdi:010083955 fre