The geospatial dataset has been produced by University of Forestry as a product of the project: Improving the conservation effectiveness of wetlands, WetMainAreas, funded under Transnational Cooperation Programme Balkan-Mediterranean 2014-2020 in accordance with Subsidy Contract BMP1/2.1/2342/2017. The connected or isolated geographically distinct areas, constitute a network of natural-seminatural areas that safeguard biodiversity, maintains habitats and support the supply of ecosystem services. It was produced by using a series of indicators and spatial modelling techniques, based on a methodology developed by EKBY in the frame of the H2020 SWOS Project. Citation: Hatziiordanou L, Fitoka E, Hadjicharalampous E, Votsi N, Palaskas D, Malak D (2019). Indicators for mapping and assessment of ecosystem condition and of the ecosystem service habitat maintenance in support of the EU Biodiversity Strategy to 2020. One Ecosystem (in press).