BAT is designed to run analyses at class, order or family level. Analysis at higher taxonomic levels (class or order) may be limited by the size of the dataset. Analysing at this level may take a few minutes, or, sometimes, the analysis may ‘time out’. This happens in particular, with the land mollusc dataset. If this happens, use the ‘back’ button on the Internet browser to return to the input screen and then click reset. The same analysis may run succesfully at another time.
The red numbers, arrows and circles indicate three basic tools of use for view the map.
1. is the zoom in and zoom out (indicated by ‘+’ and ‘-’ respectively). Click on the icon and then draw a box on the map indicating the area to zoom in or out to.
2. is the information tool for viewing species lists and records for a grid square. To use it, click on the icon and then click on one of the grid cells on the map. BAT will activate a screen that details the specimens recorded in the grid cell (as below).
3. is the scroll bar for viewing the rest of the screen including the map legend on the right hand side of the screen.