Indicator Inventory completeness of flowering plants
Aim To assess the inventory completeness of flowering plants in Africa.
How to interpret the indicatorInventory completeness ranges from values of zero to one. Values approaching one indicate a complete inventory.
High inventory completeness suggests that sampling efforts have been sufficient in a given area. For these well-sampled areas, species lists derived from GBIF may approximate well the set of species that can be found on the ground.
Note that high completeness may stem from specimens collected several decades ago. In view of recent land use change and loss of habitats, it is unclear whether old specimens still represent the set of species found on the ground.
We recommend interpreting inventory completeness together with the indicator year of collection of specimens and map of cropland area.
We also highlight the importance of data users being responsible for checking the date of collection of specimens, when using species lists derived from specimens retrieved from the Internet.
Publication and Supplementary Information (with R code) : Mapping ignorance: 300 years of collecting flowering plants in Africa
Shapefile: Completeness Index