I'm making species distribution maps and have got the Atlas working perfectly using a polygon layer to show the quarter degree grid cells for species observation records. I have ~ 250 species. Problem is that I have for most species a predicted ecological niche model (raster) which I would also like to display on the map and I can't find a way to do this using the Atlas functionality. Theres a very helpful post showing how to use rule based symbology for another polygon file but not for rasters (How to filter features in other layers of a QGIS Atlas?)
Does anyone know how to slove this problem?