The single kingdom a backbone's rows always belong to, or NA
Source:R/backbones.R
backbone_fixed_kingdom.RdA backbone scoped to one kingdom by construction (the vascular-plant
backbones, Species Fungorum) carries no kingdom column, since it has
nothing to record there. This names that kingdom, so a row from such a
backbone can still be placed.
Value
Character vector of coarse kingdom groups (see
normalize_kingdom_group()), NA where the backbone spans more than one
kingdom or is not a known backbone.
Examples
backbone_fixed_kingdom(c("wfo", "fungorum", "gbif"))