LCN Seminar: Tracking individuals shows spatial fidelity is a key regulator of ant social organization

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Event details

Date 06.06.2013
Hour 15:15
Speaker Danielle MERSCH, Faculté de biologie et de médecine, Department of Ecology and Evolution, University of Lausanne
Location
Category Conferences - Seminars
Ants live in organized societies with a marked division of labor among workers, but little is known about how this is generated. We use a tracking system to continuously monitor individually-tagged workers in six colonies of the ant Camponotus fellah over 41 days. Network analyses of over 9 million interactions revealed three distinct groups that differ in behavioral repertoires. Each group represents a functional behavioral unit with workers moving from one group to the next as they age. The rate of interactions was much higher within- than between groups. The precise information on spatial and temporal distribution of all individuals permitted calculation of the expected rates of within- and between-group interactions. These values suggest that the network of interaction within colonies is primarily mediated by age-induced changes in the spatial location of workers.

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Practical information

  • Informed public
  • Free
  • This event is internal

Organizer

  • Prof. Wulfram GERSTNER

Contact

  • Chantal Mellier

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