Extended Data Fig. 9: Patterns of geographic coverage of grid cells by voucher and observation records of mammals across spatial grain (50 × 50, 100 × 100, 200 × 200, 400 × 400, 800 × 800 and 1600 km × 1600 km).
From: Mass production of unvouchered records fails to represent global biodiversity patterns
Geographic coverage of grid cells was calculated as number of unique collection locales for each grid cell. Evenness or clustering of geographic coverage indicated by Moran’s I (Monte Carlo test, 999 randomizations) with values of 1 indicating clustered/biased coverage and 0 corresponding to geographically even coverage. The bamako colour palette is common to all panels, with darkgreen indicating high coverage and yellow indicating low coverage. The maps are in the Wagner IV projection.
