Generic Comparisons:
In both Pogonomyrmex and Pheidole , the sexual size ratio is a significant predictor of the worker size ratio, once controlling for phylogeny (Pogonomyrmex : F1,8 = 5.421, P = 0.048, R2 = 0.33, Pheidole : F1,15 = 20.77, P = 0.0004, R2 = 0.55)(Fig. 4 inset). The gyne to worker size ratio is also a significant predictor of the worker size ratio in both genera – to a greater extent than the sexual size ratio is (Pogonomyrmex : F1,8= 9.283, P = 0.016, R2 = 0.48, Pheidole : F1,15 = 70.23, P << 0.0001, R2 = 0.81).