While urbanization is often associated to a loss of biodiversity, non-native animal species are strikingly successful in urban landscapes. As biological invasions are recognized to have detrimental environmental, social and economic impacts, extensive understanding of the interactions between invasive species and the abiotic and biotic environment is necessary for effective prevention and management strategies. However, the mechanisms underlying the success of invasive animals in urban environments are still poorly understood. We provide a first conceptual review of the role of urbanization in the introduction, establishment, and potential spread of non-native animal species. We summarize and discuss the mechanisms enhancing biological invasive potential of non-native animals in urban environments, by both isolating and interlinking the abiotic and biotic drivers involved. Following the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA 2020) process, this systematic review covers a total of 124 studies comprehensive of all taxonomic groups, albeit with an evident publication bias for avian and terrestrial invertebrate species (22.1% and 19.8% of literature respectively). High-income regions also represent a larger bulk of the literature (Europe: 26.7%, North America: 23.7%). The most common reported factors facilitating species invasions in urban areas are reduced biotic resistance, and the competitive and urban-compatible ecological and/or behavioural traits of non-native animals allowing urban exploitation and aiding invasion. Finally, we identify important knowledge gaps, such as the scarcity of studies investigating socio-economic spatial patterns in the presence and abundance of invasive species, as well as the adaptive evolution of non-native animal species in urban areas.
The role of urbanization in facilitating the introduction and establishment of non-native animal species: a comprehensive review
Eugenio Carlon,Davide M. Dominoni
Published 2024 in Journal of Urban Ecology
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2024
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Journal of Urban Ecology
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