Figure 1

Cox regression of time to corpse removal rate in Formica polyctena based on the different type of corpses used during the experimental setups: (A) Responses to the corpses of potential prey (Drosophila melanogaster) and nestmates (Control); (B) Nestmate corpse consumption: C. vagus—outer group represented by the corpses of Camponotus vagus; NC—nestmate corpses; starved NC—nestmate corpses given to starving colonies; fed NC—nestmate corpses given to satiated colonies; old NC—seven-day-old corpses. Broken lines represent a pointwise 95% confidence interval around the corresponding functions.