Zone de Texte: 1. Impact Zone de Texte: B. Overcrowding of the biotope Zone de Texte: The overcrowding criterion is accepted if at least one 100% covering population of the species is known in a natural biotope in the study area. Zone de Texte: Study of naturalised species Zone de Texte: Wet habitat overcrowded by Ludwigia spp. Zone de Texte: Cyperus eragrostis not overcrowding the habitat Zone de Texte: Photo: Erick Dronnet

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