Figure 3 in Lessons learnt from large-scale eradication of Australian swamp stonecrop Crassula helmsii in a protected Natura 2000 site

Figure 3. Photo impressions of the large scale eradication of Crassula helmsii on the Island of Terschelling. A. The dominant infestation of C. helmsii in an artificial lake (location 5). B. Installing a mitigation fence in order to prevent entry by amphibians and reptiles (2.75 linear km). C. Drainage installation and steel road plates tracks. D. Excavation of 40 cm topsoil (Step 4 of the described eradication approach). E. Recolonization of characteristic native plant species in excavated area 2.5 years after the eradication of C. helmsii (March 2021). F. Guided tours in the study area to inform those concerned.