Impacts of invasive alien marine species on ecosystem services and biodiversity: a pan-European review

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dc.contributor.authorKatsanevakis, Stelios
dc.contributor.authorWallentinus, Inger
dc.contributor.authorZenetos, Argyro
dc.contributor.authorLeppakoski, Erkki
dc.contributor.authorCinar, Melih Ertan
dc.contributor.authorOzturk, Bayram
dc.contributor.authorGrabowski, Michal
dc.contributor.authorGolani, Daniel
dc.contributor.authorCardoso, Ana Cristina
dc.date.accessioned2019-10-27T22:12:36Z
dc.date.available2019-10-27T22:12:36Z
dc.date.issued2014
dc.departmentEge Üniversitesien_US
dc.description.abstractA good understanding of the mechanisms and magnitude of the impact of invasive alien species on ecosystem services and biodiversity is a prerequisite for the efficient prioritisation of actions to prevent new invasions or for developing mitigation measures. In this review, we identified alien marine species that have a high impact on ecosystem services and biodiversity in European seas, classified the mechanisms of impact, commented on the methods applied for assessing the impact and the related inferential strength, and reported on gaps in available information. Furthermore, we have proposed an updated inventory of 87 marine species in Europe, representing 13 phyla, which have a documented high impact on ecosystem services or biodiversity. Food provision was the ecosystem service that was impacted by the greatest number of alien species (in terms of both positive and negative impacts). Following food provision, the ecosystem services that were negatively affected by the highest number of alien species were ocean nourishment, recreation and tourism, and lifecycle maintenance, while the ecosystem services that were most often positively impacted were cognitive benefits, water purification, and climate regulation. In many cases, marine aliens were found to impact keystone/protected species and habitats. Thirty percent of the assessed species had an impact on entire ecosystem processes or wider ecosystem functioning, more often in a negative fashion. Forty-nine of the assessed species were reported as being ecosystem engineers, which fundamentally modify, create, or define habitats by altering their physical or chemical properties. The positive impacts of alien species are probably underestimated, as there is often a perception bias against alien species. Among the species herein assessed as high-impact species, 17 had only negative and 7 only positive impacts; for the majority (63 species), both negative and positive impacts were reported; the overall balance was often unknown. Although there is no doubt that invasive species have modified marine ecosystems, evidence for most of the reported impacts is weak, as it is based on expert judgement or dubious correlations, while only 13% of the reported impacts were inferred via manipulative or natural experiments. A need for stronger inference is evident, to improve our knowledge base of marine biological invasions and better inform environmental managers.en_US
dc.description.sponsorshipEuropean UnionEuropean Union (EU) [308392, 287600]; European UnionEuropean Union (EU) [308392, 287600]en_US
dc.description.sponsorshipSK and ACC were partly supported by the DEVOTES (DEVelopment Of innovative Tools for understanding marine biodiversity and assessing good Environmental Status) project, which was funded by the European Union under the 7th Framework Programme, `The Ocean for Tomorrow' Theme (grant agreement no. 308392), www.devotes-project.eu. AZ was supported by the PERSEUS (Policy-oriented marine Environmental Research for the Southern EUropean Seas) project, which was funded by the European Union under the 7th Framework Programme (grant agreement no. 287600). We thank C. Liquete, M. Thomsen, M. Hanson, and two anonymous reviewers for their useful comments, and G. Mulhern for linguistic editing.en_US
dc.identifier.doi10.3391/ai.2014.9.4.01
dc.identifier.endpage423en_US
dc.identifier.issn1798-6540
dc.identifier.issn1818-5487
dc.identifier.issn1798-6540en_US
dc.identifier.issn1818-5487en_US
dc.identifier.issue4en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage391en_US
dc.identifier.urihttps://doi.org/10.3391/ai.2014.9.4.01
dc.identifier.urihttps://hdl.handle.net/11454/49514
dc.identifier.volume9en_US
dc.identifier.wosWOS:000345597500001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherRegional Euro-Asian Biological Invasions Centre-Reabicen_US
dc.relation.ispartofAquatic Invasionsen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectbiological invasionsen_US
dc.subjectevidenceen_US
dc.subjectimpact assessmenten_US
dc.subjecthigh-impact aliensen_US
dc.subjectprovisioning servicesen_US
dc.subjectregulating and maintenanceen_US
dc.titleImpacts of invasive alien marine species on ecosystem services and biodiversity: a pan-European reviewen_US
dc.typeReview Articleen_US

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