tab_xlsx,filename_csv,field,number_of_values_allowed,obligatory,controlled_vocabulary,specifications taxa,taxa.csv,scientific name,1,yes,no,"The full scientific name, with authorship and date information if known. This should be the name in lowest level taxonomic rank that can be determined." taxa,taxa.csv,taxonomy,no limitation,no,no,Full text about the taxonomy taxa,taxa.csv,class,1,no,no,The full scientific name of the classis in which the taxon is classified. taxa,taxa.csv,order,1,no,no,The full scientific name of the order in which the taxon is classified. taxa,taxa.csv,family,1,no,no,The full scientific name of the family in which the taxon is classified. taxa,taxa.csv,genus,1,no,no,The full scientific name of the genus in which the taxon is classified. taxa,taxa.csv,first_observation_text,no limitation,no,no,Full text about the first available. taxa,taxa.csv,distribution_belgium_text,no limitation,no,no,Full text about the species' distribution taxa,taxa.csv,first_observation,1,no,yes,"Depnds on the content of `first_observation_text` and `distribution_belgium_text`. We always select the earliest date of observation, despite the fact that this occurrence is doubtful or not well documented. If this is doubtful record is the only records, this will be clear from the occurrence status (which will be doubtfull in this case)" taxa,taxa.csv,last_observation,1,no,yes,"Depends on the content of `first_observation_text` and `distribution_belgium_text`. We do not populate this field unless this is (very) clear statement is made, e.g. when a species was observed only once and then went extinct and no observations were made afterwards. " taxa,taxa.csv,occurrence_status,1,no,yes,A statement about the presence or absence of a Taxon within the country between the date of first observation and last date of observation taxa,taxa.csv,source_distribution,"multipele, separated by ""|""",no,no,"References related to the distribution information. Only use citations, the full reference can be given in the references tab." taxa,taxa.csv,native_range_text,no limitation,no,no,Full text about the native range taxa,taxa.csv,introduction_pathway_text,no limitation,no,no,Full text about the introduction pathway taxa,taxa.csv,degree_of_establishment_text,no limitation,no,no,Full text about the degree of establishment taxa,taxa.csv,realm,"multiple, separated by ""|""",no,preferred,"Whether the species is found in a terrestrial, marine, freshwater of estuarine envrionments" taxa,taxa.csv,native_range,"multiple, separated by ""|""",no,no,The area to which the alien species is native taxa,taxa.csv,introduction_pathway,"multiple, separated by ""|""",no,yes,The pathway through which an alien species arrives in the region during the period specified by first and last observation. Use the vocabulary suggested by CBD: https://www.cbd.int/doc/meetings/sbstta/sbstta-18/official/sbstta-18-09-add1-en.pdf. taxa,taxa.csv,degree_of_establishment,"multiple, separated by ""|""",no,yes,"The stage in the invasion process a species has reached during the period specified by first and last observation. We prefer to use the vocabulary suggested by ""Blackburn et al. (2011 ) A proposed unified framework for biological invasions. Trends in Ecology and Evolution. 26: 333-339""" taxa,taxa.csv,source_description,"multiple, separated by ""|""",no,no,"References related to the distribution information. Only use citations, the full reference can be given in the references tab." references,references.csv,scientific name,1,yes,yes,"To choose from dropdown menu, no other scienttific names or spellings alowed" references,references.csv,reference,1,yes,no,A text string referring to an un-parsed bibliographic citation. synonyms,synonyms.csv,scientific name,1,yes,no,"The full scientific name of the synonym, with authorship and date information if known. This should be the name in lowest level taxonomic rank that can be determined." synonyms,synonyms.csv,synonym_of,1,yes,yes,"To choose from dropdown menu, no other scienttific names or spellings alowed. This is the full scientific name of the accepted name" vernacular name,vernacular_name.csv,scientific name,1,yes,yes,"To choose from dropdown menu, no other scienttific names or spellings alowed. This is the full scientific name of the accepted name" vernacular name,vernacular_name.csv,vernacular_name,1,yes,no,A common or vernacular name vernacular name,vernacular_name.csv,language,1,yes,no,Language used for the vernacular name