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SUMMARY:CNN Seminar - Dominance hierarchy networks of worker ants. - Dr Na
 oki Masuda (Department of Engineering Mathematics\, University of Bristol)
DTSTART:20141202T171500Z
DTEND:20141202T181500Z
UID:TALK55820@talks.cam.ac.uk
CONTACT:Petra Vertes
DESCRIPTION:Group-living animals\, from insects to mammals\, often form do
 minance hierarchy\, which is a directed network. The direction of the link
  represents aggression by one individual on the other subordinate individu
 al. In small groups of animals\, it has been long known that the hierarchy
  is often perfectly linear\, allowing unique ranking of the individuals. H
 owever\, perfect linearity is often violated in large groups. I present an
 alysis of aggressive dominance hierarchy formed by worker ants as large di
 rected networks and then discuss evolutionary implications of the results.
  I also present some results on generative models to account for the obser
 ved connectivity patterns\, built on the assumption of heterogeneously dis
 tributed intrinsic strengths of individual nodes.
LOCATION:Keynes Hall in King's College
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