Checklists are by far the most efficient way for large scale management of distribution information. They are significantly easier to maintain than either range maps or atlases which are other options.
One issue though is that the geographic inheritance upwards can cause a display that significantly distorts where a species is found.
For example this species : Grey Heron
It is on the Newfoundland and Labrador checklist (while there are no iNat records, the species has been seen here 2 or 3 times). The species is legitimately on the Newfoundland checklist. Likewise it is on the Canada checklist, an accurate accounting of Canada’s avifauna on a checklist would include the species.
However this means all 10 million square kilometers of Canada appear selected on the checklist map colouration.
I would propse
- splitting the overlays available for map selection into 2 separate categories. One only containing nations (presumably driven by places defined as a country in the geography data) and a second more precise for sub-national and lower places (province/state/commune whatever)