MAES (Mapping and Assessment of Ecosystems and their Services) Home / Resources / MAES (Mapping and Assessment of Ecosystems and their Services) European knowledge base that assesses the status of ecosystems and their services. MAES Aquatic Ecosystems ← Criteria for identifying free-flowing river stretches for the EU Biodiversity Strategy for 2030 → Guide to decentralized regulations for climate-adaptive and nature-inclusive construction, design and management Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.