Antweb.org Proof of Concept:
Overall, the specimens available on Antweb.org seem to be relatively good estimates of the natural variation present in these species (Fig. 3). The proportion of overlap between Antweb.org and the worker head width ranges reported by Cole (1984) does not differ from 1 (t = 1.26, df = 16, P = 0.23). It should be noted, though, that several species on Antweb.org show a much greater degree of variation (200-600%) compared to Cole (1984) (Fig. 3 inset). When the Antweb.org sample range is compared to four intensively measured species there is 70-88% overlap; Antweb.org measurements show more variation in one of the four species (P. rugosus , Fig. 3).