FIGURE 3.

Comparisons with expert maps contributed to IUCN assessment. (a and c) Richness patterns and absolute differences with the Mammal Diversity Database (MDD) calculated as MDD minus IUCN (for details see Figure 2). (b and d) Map differences for the antelope Kobus kob in West and Central Africa. In the IUCN source (b), it is treated as a single species and includes information on the type of distribution and seasonality, but it is separated into four species in the Handbook of the Mammals of the World (HMW) and the Illustrated Checklist of the Mammals of the World (CMW) (d)