Potential Wild Bee Habitat in Germany (5m Raster)

The raster dataset shows the spatial distribution of potential habitat of wild bees which is derived from land use and land cover data (CORINE land cover data). The methodological approach was adopted from Zulian et al. (2013) ( see section “related resources”) who estimated different CLC classes regarding their provision of potential nesting sites and floral resources via expert evaluation. Furthermore, the connectivity of the nesting and floral habitat is considered in the model assuming an average flight distance of 200 m which represents small solitary wild bees (moving window approach). The approach of Zulian et al. (2013) was transferred to high resolution German database, which encompasses both the German land cover model 2015 (release year 2018) and the official topographic-cartographic information system (AKTIS Basic-DLM) of the Federal Agency of Cartography and Geodesy of Germany (BKG). The raster values include 2 decimal values from 0 to 1, while 0 refers to no available wild bee habitat and 1 equals the best habitat conditions for wild bees. Restrictions: the approach has been developed for national scale analyses, for the purpose of local and regional analysis, higher resolution data should be included; inaccuracies in the distinction between intensive and extensive grassland; urban areas probably systematically underestimated due to insufficient information of urban vegetation in the basis data; the dataset has not been validated against wild bee sampling data Resolution: 5 x 5 m Format: TIFF Coordinate System: EPSG: 3035 (ETRS89, LAEA) Reference year: 2015 Coverage: Germany