Invasive plants impact native plant and animal species, communities, and ecosystems. We explore the role of treefall gaps in facilitating invasive species growth. We measured the frequency and density of different life stages of three invasive species: Rubus phoenicolasius, Berberis thunbergii, and Rosa multiflora in an eastern deciduous mature forest. Gaps were important for the establishment, growth, and reproduction of R. phoenicolasius, growth of R. multiflora and reproduction of B. thunbergii. We present several hypotheses as to why we observed a species-specific response of invasive plants to treefall gaps, including propagule rain as a driver of invasive plant establishment.
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