Pan, zoom and click on map to capture coordinates, then submit coordinates to build a species list.
If a radius is defined, species lists are generated using data of specimens collected within the defined area.
If a radius suplied, the area is sampled in concentric rings until the sample size is determined to best represent
the local species diversity.
In other words, poorly collected areas will have a larger radius sampled. Setting the taxon filter will limit the
return to species found within that taxonomic group.