Body Size Differences between Foraging and Intranidal Workers of the Monomorphic Ant <i>Lasius niger</i>.

However, as the interaction between “colony” and “worker class” was highly significant at p < 0.0001, the relative differences in body size between worker classes vary among the colonies ( Figure 3 ). 4.

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In many dimorphic species of the genus Pheidole , major workers showed a trend toward specialization for defence and/or food storage while minor workers perform virtually all tasks, including nest maintenance, brood care, and foraging [ 19 , 20 ].

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