Drivers of plant invasions and their scale-dependency in grasslands

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dc.contributor.authorBuzhdygan, Oksanaen_US
dc.contributor.authorBaldauf, Selinaen_US
dc.contributor.authorTietjen, Brittaen_US
dc.contributor.authorIemelianova, Svitlanaen_US
dc.contributor.authorBorovyk, Dariiaen_US
dc.contributor.authorVynokurov, Denysen_US
dc.contributor.authorChusova, Olhaen_US
dc.contributor.authorBudzhak, Vasylen_US
dc.contributor.authorBergmann, Joanaen_US
dc.contributor.authorDengler, Jürgenen_US
dc.contributor.authorDembicz, Iwonaen_US
dc.contributor.authorJaniˇsov´a, Monikaen_US
dc.contributor.authorVasheniak, Iuliiaen_US
dc.contributor.authorChase, Jonathanen_US
dc.contributor.authorKuzemko, Annaen_US
dc.date.accessioned2026-04-07T08:25:54Z
dc.date.available2026-04-07T08:25:54Z
dc.date.issued2026
dc.description.abstractConservation and management policies for plant invasions often rely on coarse-scale data, while plant diversity effects on ecosystem functions and services are primarily driven by species interactions at small spatial scales. Yet, most evidence on invasion drivers at fine scales is limited to a single grain size, leaving uncertainty about their scale-dependency. Understanding such scale-dependency is essential for predicting and managing invasions effectively. We sampled plant communities across grassland habitats in Ukraine to assess how native species richness, environmental factors, and anthropogenic disturbances influence community invasion level – the proportions of all alien species, and separately for invasive species (fast-spreading aliens at advanced stages of invasion), archaeophytes (introduced before 1500 CE) and neophytes (post-1500 CE aliens). By analysing these groups across six fine-grain areas (0.001–100 m2), we tested for scale-dependent effects. Native species richness was the strongest driver of invasions, showing negative effects that weakened with increasing scale. Alien species were dominated by archaeophytes and occurred most in dry grasslands, and least in fringe, alpine, and mesic types, driven by climatic and disturbance gradients. A range of abiotic and anthropogenic drivers, including precipitation, temperature, disturbance, land use and urbanization also influenced invasion levels, but their importance varied with scale. Notably, the scale-dependency of invasion drivers differed among archaeophytes, neophytes, and invasive species. Our results highlight the importance of separating alien groups and considering multiple spatial grains to avoid overlooking key drivers of invasion. Focusing on scale- and group-specific factors can enhance the ecological relevance and efficiency of conservation and management strategies targeting plant invasions.en_US
dc.identifier.citation111en_US
dc.identifier.issn0006-3207
dc.identifier.urihttps://doi.org/10.1016/j.biocon.2025.111584
dc.identifier.urihttps://ekmair.ukma.edu.ua/handle/123456789/38958
dc.language.isoenen_US
dc.relation.sourceBiological Conservationen_US
dc.statusfirst publisheden_US
dc.subjectlevel of invasionen_US
dc.subjectalien plant speciesen_US
dc.subjectinvasive plant speciesen_US
dc.subjectarchaeophytesen_US
dc.subjectneophytesen_US
dc.subjectnative biodiversityen_US
dc.subjectspatial scale dependencyen_US
dc.subjectfine grainen_US
dc.subjectgrasslandsen_US
dc.subjectUkraineen_US
dc.subjectarticleen_US
dc.titleDrivers of plant invasions and their scale-dependency in grasslandsen_US
dc.typeArticleen_US
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