This query returns a list of all species that have 5 or fewer hectads within a region.
Apart from the usual clauses to exclude invalid records, the important elements are:
- Grouping by species (because infra-specific taxa would complicate things)
- Counting distinct hectads (rather than a count of records)
- Setting a maximum frequency on the grouped total (hectads in this case)
These options are available on the more options > grouping submenu