Mean change in population density of Ambrosia artemisiifolia between subsequent years in invaded road corridors with different traffic intensities. High traffic is merged from the corridor types a-road and state road, low traffic is merged from district road and parish road. Mean values are based on road cell specific population density categories (n = 303994 road cells in the road network).

  Part of: Lemke A, Buchholz S, Kowarik I, Starfinger U, von der Lippe M (2021) Interaction of traffic intensity and habitat features shape invasion dynamics of an invasive alien species (Ambrosia artemisiifolia) in a regional road network. NeoBiota 64: 55-175.