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Percentage (+s.e.) of (a) pollinator species richness, (b) visits and (c) interactions in alien (C, Carpobrotus affine acinaciformis; I, I. glandulifera; O, O. stricta; R, R. ponticum; S, S. elaeagnifolium) and native (filled bar) plant species in invaded (unfilled bar) plant–pollinator networks.
