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Size distributions of workers cutting mango (white bars), cutting leaf (black bars) and workers on a trail (hatched bars). First Kruskal–Wallis ANOVA's are between mango and leaf cutters and second among all three classes for the two colonies where a trail sample was obtained. (a) Colony 1: KW=8.1, d.f.=1, p=0.004; (b) colony 2: KW=19.7, d.f.=1, p<0.001; KW=71.7, d.f.=2, p<0.001; (c) colony 3: KW=20.3, d.f.=1, p<0.001; KW=161.3, d.f.=2, p<0.001; (d) colony 4: KW=17.4, d.f.=1, p<0.001.
