Get access to the xml: attribute groups for xml:lang The index number of the column this field is represented in the source file(s). Indices start with 0. The unique, qualified identifier for the term, usually a URI. E.g. http://rs.tdwg.org/dwc/terms/scientificName A global default value that should be used in case the field doesnt have a column index or the actual value for the source record is NULL. A URI that identifies a vocabulary used for the values found for the field in the source files. The URI ideally should resolve to some machine readable definition like SKOS, RDF, the GBIF vocabulary schema or a simple text file as often found for ISO or RFC standards. E.g. http://rs.gbif.org/vocabulary/gbif/nomenclatural_code.xml; http://www.ietf.org/rfc/rfc3066.txt; http://www.iso.org/iso/list-en1-semic-3.txt Indicates an optional delimiter used for concatenating multiple values in a list.