Fig. 4: Biogeographical sectors are consistent with environmental filtering showing associations with environmental variables and community dissimilarity attributed to nestedness.
From: A general rule on the organization of biodiversity in Earth’s biogeographical regions
a, McFadden’s pseudo-R2 from multinomial logistic models across combinations of biogeographical regions and taxa, using biogeographical sectors as the dependent variable and environmental factors as the explanatory variables. See model results across bioregions and taxa in Supplementary Figs. 14–20. b, Proportion of dissimilarity due to nestedness among assemblages of characteristic (dark green boxplots) and non-characteristic (light green boxplots) species across sectors within the same biogeographical region. In both panels, circles represent individual analyses conducted for each biogeographical region. In the nestedness analyses, we conducted one analysis for each origin of the non-characteristic species. On the boxplots, the solid line is the median, the black box is the interquartile range, the whiskers are the minimum and maximum values excluding outliers and the circles are the outliers.
