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DTSTART:20250330T030000
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DTSTAMP:20260424T143326Z
UID:1741602600@ist.ac.at
DTSTART:20250310T113000
DTEND:20250310T123000
DESCRIPTION:Speaker: Eva Kanso\nhosted by Andela Saric\nAbstract: The remar
 kable cohesion and coordination observed in animal groups is thought to ar
 ise from scale-free correlations\, where changes in the behavior of one an
 imal influence others in the group\, regardless of the distance between th
 em.  In this talk\, I explore scale-free correlation and information prop
 agation in mathematical models of massive schools of fish of the order of 
 10\,000 individuals. I show that (1) as the school size increases\, flow i
 nteractions destabilize global polarization\, creating locally polarized c
 lusters that dynamically self-organize\, split and reassemble\; (2) while 
 correlations in cohesive and polarized clusters are scale free\, splitting
  events are preceded by a decrease in correlation length\; (3) information
  propagates linearly in time within cohesive groups\, thanks to the non-re
 ciprocal nature of interactions between individuals\; and (4) the speed of
  information propagation within cohesive groups is robust to group size\, 
 but varies with self-organization: merging of separate clusters increases 
 the speed of information transfer within each cluster\, while splitting an
 d fragmentation decrease it. I conclude by commenting on the implications 
 of these findings to size regulation and behavioral adaptations in living 
 animal groups.
LOCATION:Raiffeisen Lecture Hall\, ISTA
ORGANIZER:diana.gruber@ista.ac.at
SUMMARY:Eva Kanso: Self-Organization in Massive Fish Schools
URL:https://talks-calendar.ista.ac.at/events/5358
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