Expected maps

Sylvia melanocephala neznami autor

The European Breeding Bird Atlas 2 (EBBA2) is currently in the middle of the data collection process and consequently there are no final results at this early stage of the project.

 

The final results will be published in a book and will be also available on-line by 2020.

 

The EBBA2 attempts to generate maps for the whole of Europe to show information for the four scientific objectives of the project, which are

 

1) to document breeding evidence for all bird species at a resolution of 50×50 km

2) to estimate abundance for all bird species at a resolution of 50×50 km

3) to determine the changes in bird species distribution at a resolution of 50×50 km since the 1980s

4) to model fine-grained distribution for as many bird species as possible and project it at a resolution of 10×10 km

In order to visualise how we attempt to fulfil these four objectives we used old available data on species distribution at 50×50 km and expert knowledge to produce the first simulations of the EBBA2 maps.

 

The following four maps show these simulations for the Sardinian Warbler (Sylvia melanocephala).

 

9O7T103560a

Sardinian warbler (Sylvia melanocephala)

Expected map 1

The final map will present breeding evidence for each square. A modelling approach will be used to predict occurrence in non- or poorly surveyed squares.

first map SYMEL_BREEDING_600dpi

EBBA2 simulated map for the breeding likelihood of the Sardinian Warbler (Sylvia melanocephala).

The project will attempt to illustrate the predictions of statistical models in non-surveyed squares as well as observed data.

 

Expected map 2

The final map will present abundance estimates for each 50×50 km square. A modelling approach will be used to predict abundance in non- or poorly surveyed squares.

second map SYMEL_ABUND_600dpi

EBBA2 simulated abundance map for the Sardinian Warbler (Sylvia melanocephala).

The project will attempt to illustrate the predictions of statistical models in non-surveyed squares as well as observed data.

 

 

Expected map 3

The data provision at 50×50 km will also be the basis for a map showing the change in species distribution between the first European Breeding Bird Atlas and the new atlas

third map SYMEL_CHANGE_MAP_600dpi(stars)

EBBA2 simulated map for the change in the species distribution between the two European atlases for the Sardinian Warbler (Sylvia melanocephala).

 

Expected map 4

The final map will present the probability of occurrence at 10×10 km resolution.

fourth map SYMEL_PROB._OCCURENCE1

EBBA2 simulated high resolution map (10×10 km) for the Sardinian Warbler (Sylvia melanocephala).