We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Path selection and foraging efficiency in Argentine ant transport networks.
- Authors
Garnier, Simon; Guérécheau, Aurélie; Combe, Maud; Fourcassié, Vincent; Theraulaz, Guy
- Abstract
We experimentally investigated both individual and collective behavior of the Argentine ant Linepithema humile as they crossed symmetrical and asymmetrical bifurcations in gallery networks. Ants preferentially followed the branch that deviated the least from their current direction and their probability to perform a U-turn after a bifurcation increased with the turning angle at the bifurcation. At the collective level, colonies were better able to find the shortest path that linked the nest to a food source in a polarized network where bifurcations were symmetrical from one direction and asymmetrical from the other than in a network where all bifurcations were symmetrical. We constructed a model of individual behavior and showed that an individual’s preference for the least deviating path will be amplified via the ants’ mass recruitment mechanism thus explaining the difference found between polarized and non-polarized networks. The foraging efficiency measured in the simulations was three times higher in polarized than in non-polarized networks after only 15 min. We conclude that measures of transport network efficiency must incorporate both the structural properties of the network and the behavior of the network users.
- Subjects
FORAGING behavior; SURVIVAL behavior (Animals); ANIMAL behavior; LINEPITHEMA; ARGENTINE ant; FOOD; SOCIOBIOLOGY
- Publication
Behavioral Ecology & Sociobiology, 2009, Vol 63, Issue 8, p1167
- ISSN
0340-5443
- Publication type
Article
- DOI
10.1007/s00265-009-0741-6