Figure 3.

Observed and predicted extinction risk across (a) 8664 species and (b) ca 13 000, 110 × 110 km assemblages worldwide. Predictions are based on the within-family mixed-effect model (GLMM). For details on (a), see figure 2. In (b), the dashed line indicates a 1 : 1 relationship. A different linear regression fit is illustrated for quartiles of assemblage richness. Prediction success increases with increasing richness: 10–90 species: b = 0.17, n = 3276; 91–150 species: b = 0.54, n = 3403; 151–240 species: b = 0.71, n = 3169 and 241–905 species: b = 0.83, n = 3308. Assemblages with less than 10 species are excluded. Richness per assemblage: dark blue solid line, 10–90; light blue solid line, 91–150; yellow solid line, 151–240; red solid line, 241–905.