| The objectives of my study were (1) to determine the spatial distribution of four invasive species; Rubus phoenicolasius, Berberis thunbergii, Rosa multiflora, and Lonicera japonica in a mature forest; (2) to investigate the role of propagule rain from a road, logged forest, and floodplain on these distributions, and (3) to explore the role of treefall gaps as a facilitator of invasion. The importance of propagule rain was indicated by higher densities of R. multiflora near the floodplain and R. phoenicolasius and climbing L. japonica near the road. Based on higher frequency and density, gaps are important for the establishment, growth, and reproduction of R. phoenicolasius, growth of R. multiflora and L. japonica, and reproduction of B. thunbergii.. |
