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occurrenceStatus (http://rs.tdwg.org/dwc/terms/occurrenceStatus)

@return [String]
Term describing the status of the organism in the given area based on
how frequent the species occurs. See the Occurrence status vocabulary
at http://rs.gbif.org/vocabulary/gbif/occurrence_status.xml for
recommended values.

Vocabulary: http://rs.gbif.org/vocabulary/gbif/occurrence_status.xml

Example: “Absent” “present”
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