The Potential of Manor Gardens for Natural Habitats Conservation

Historical gardens established around manors form an integral part of the European cultural landscape. Recent studies have revealed that manor gardens may serve as local hotspots of biodiversity and provide cultural ecosystem services within urban areas but also in rural landscapes. As a consequence of dramatic land-use changes in recent centuries, followed by a significant loss and degradation of natural habitats, manor gardens often serve as refugia for organisms within the cultural landscape. To compare the proportion of natural habitats in manor gardens with the surrounding landscape, intensively used and semi-natural landscapes were distinguished within a grid using Coordinated Information on the Environment (CORINE) land cover data for the Czech Republic. One hundred manor gardens were randomly selected, followed by a grid overlay of data from the Natura 2000 mapping system. Proportions of natural habitats were calculated for each garden in relation to the surrounding landscape. The results confirmed that manor gardens, compared with the surrounding landscape, play an important role in the conservation of natural habitats, especially in areas with a high level of human impact. For the gardens studied, occurrences of the following natural habitat types from the Natura 2000 system were recorded: forests (25.4 % of the garden area), secondary grasslands (4.4 %), streams and water bodies (1.6 %) and wetlands and riverine vegetation (0.5 %). The proportion of natural habitats within the gardens compared to the surrounding areas was significantly higher in the majority of cases.