Figure 2 in Native food spectrum, size-matching and foraging efficiency of the Mediterranean harvester ant Messor wasmanni (Hymenoptera: Formicidae)

Figure 2. Frequency distribution of harvested material in percent (May, July-August and October 2009). During periods of aboveground activity, returning foragers carrying food items and other materials were collected at random from foraging trails 10 cm far from the nest entrances.