The database include both species richness data (from IUCN) and environmental data extracted at the global extent and at the catchment grain (HydroSHED) More information on this dataset can be found in the Freshwater Metadatabase - BF72 (http://www.freshwatermetadata.eu/metadb/bf_mdb_view.php?entryID=BF72).

The database contains information about 270 shelled Gastropoda (both native and alien). Information is avaialble in 4 data-files: macrohabitat preference, microsites features, traits, range and degree of endemism. Glossareis are available to unterstand the precise innterpretationon terms used. Fuzzy coding is applied (0-3), which describes the association between a species and a variable. More information on this dataset can be found in the Freshwater Metadatabase - BF27 (http://www.freshwatermetadata.eu/metadb/bf_mdb_view.php?entryID=BF27).