Behavioral diversity assisting obstacle navigation during group transportation in ant

BioRxiv : the Preprint Server for Biology
Shohei Utsunomiya, Atsuko Takamatsu


Cooperative transportation behavior in ants has attracted attention from a wide range of researchers, from behavioral biologists to roboticists. Ants can accomplish complex tasks as a group whereas individual ants are not intelligent (in the context of this study's tasks). In this study, group transportation and obstacle navigation in Formica japonica , an ant species exhibiting 'uncoordinated transportation' (primitive group transportation), are observed using two differently conditioned colonies. Analyses focus on the effect of group size on two key quantities: transportation speed and obstacle navigation period. Additionally, this study examines how these relationships differ between colonies. The tendencies in transportation speed differ between colonies whereas the obstacle navigation period is consistently reduced irrespective of the colony. To explain this seemingly inconsistent result in transportation speed, we focus on behavioral diversity in 'directivity', defined as the tendency of individual ants to transport a food item toward their own preferential direction. Directivity is not always toward the nest, but rather is distributed around it. The diversity of the first colony is less than that of the second colony. Ba...Continue Reading

Related Concepts

Research Personnel
Antisocial protein, Drosophila
Formica japonica
Colony (Cells or Organisms)

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