It is about wetland connectivities and the impact of manmade systems on the natural ecosystems. I´ll show how an invasive plant can finds its way from for example an agriculture feild to a wetland and threats the being of that ecosystem and the whole of biodiversity of them. And will describe the negetive effects of this invasive species on the environmental funcion of the nature and the loses that many stakeholder are affected by. In the last step I am going to introduse the easy measure to get rid of the stain. the way which would be ecologically and with out any side effect.