Beauchamp, Guy; Fernández-Juricic, Esteban - In: Behavioral Ecology 16 (2005) 2, pp. 352-357
In many species, foraging in groups can enhance individual fitness. However, groups are often predicted to be larger than the size that maximizes individual fitness. This is because individual foragers are expected to continue joining a group until the fitness in the group falls to the level...