Normalize GBIF occurrence IDs
Arguments
- x
Vector of gbifIDs: digits, numbers, or a gbif.org / api.gbif.org
occurrence URL. Smithsonian NMNH EZIDs (ark:/65665/3..., n2t.net or
collections.nmnh.si.edu links) are also accepted.
Value
Character vector of digit-only IDs or canonical NMNH ARKs, NA where
the input is blank or not an occurrence ID.