Fig. 3.

Average number of species coexisting (± 1 SD) when we perform the simulations described in the main text for a variable number of limiting factors (x axis) and size of the species pool (colors). The blue line is for a 10 species pool, the red line for 20 species, and the green line for 30 species. Dashed lines mark the theoretical expectation for an infinite number of factors. (Left to Right) (A) results obtained drawing the ranking for the species independently; (B) positive correlation among factors; (C) trade-off among factors. Details are reported in SI Text.