Evidence for contrasting size-frequency distributions of workers patrolling vegetation vs. the ground in the polymorphic African ant Anoplolepis custodiens

It is often hypothesized that ant species with substantial variation in worker body size should have schemes for allocating workers to different foraging tasks based on size. Here, we document in Anoplolepis custodiens ants preliminary evidence for a relationship between worker body size and the foraging surfaces on which workers walk. Workers of A. custodiens were collected in pitfall traps near their nest entrances and compared in size to...