Guideline on the management of invasive neophytes at building sites

Alien species are non-native organisms that have been introduced into areas outside their original habitat through human influence. Most species establish themselves permanently in the region, behave inconspicuously and have already adapted to the environment. A small proportion, the so-called invasive alien species, endanger and influence biodiversity and the associated ecological services sustainable. The basic requirements for the management of alien species are laid down in EU Regulation (EU) No 1143/2014, which contains a list (Union list) of invasive alien plant (neophytes) and animal species.
Looking at building grounds, infestation with invasive neophytes can cause problems. If they are not controlled properly, they can spread further; taking measures, on the other hand, can be quite cost-intensive. In particular, the recyclability of excavated soil materials can be severely limited by an infestation of invasive neophytes. Clear guidelines and instructions for action are therefore required.
Due to a lack of specific environmental protection regulations for the management of invasive neophytes at building grounds in Austria, a guideline with comprehensive recommendations is urgently needed for the construction and demolition sector. In a first step, the topic of neophyte management on construction sites was included in the Styrian C&D Waste Guide. A supplementary detailed guideline elaborated by all relevant stakeholders is to be completed soon.