About the viewer
This viewer is a tool to visualise the maps of the EBBA2 project. Information depicted in the 50x50 km maps is shown in a grid of points corresponding to the squares of the Universal Transversal Mercator (UTM) grid, the same grid used in the first European Breeding Bird Atlas. Europe is divided in 5 217 squares. The majority of these are regular squares (2 500 km2), but there are also irregular squares with an area larger or smaller than 2 500 km2. Each square has its own code (e.g. 34UFE3).
The maps show the following information for each square:
- Ocurrence: Shows where the species was reported as a breeder (possible, probable or confirmed, plus those reported in some cases just as breeders)
- Breeding category: Shows information of the breeding assessment (possible, probable and confirmed). Depending on the national dataset, this information came from the highest atlas code or the expert breeding assessment. See details on these categories and possibilities in the EBBA2 methodology.
- Abundance: Shows the number of breeding pairs estimated for each square. See details on the abundance categories in the EBBA2 methodology.
- EBBA1 vs EBBA2: Shows the occurrences reported in the pilot data provision and in the first atlas, distinguishing squares in which the species was found in the two atlases or just in one of them.
All the information reported in this viewer should be considered as preliminary data from the pilot data provision. Final maps are expected to be available at the end of the project, by 2020. Please contact us for further information
