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SUMMARY:Importance of Adaptive Speed in Modeling Collective Movement - Paw
 el Romanczuk (Humboldt-Universität zu Berlin)
DTSTART:20230811T080000Z
DTEND:20230811T090000Z
UID:TALK203425@talks.cam.ac.uk
DESCRIPTION:The collective dynamics &nbsp\;of animal groups has attracted 
 the attention of scientists across a broad range of fields. A variety of a
 gent-based models have been proposed to describe the emergence of coordina
 ted behavior from simple interaction rules. A simplifying assumption of ma
 ny collective movement models\, is that individual agents move with a cons
 tant speed. Here\, we critically re-asses this assumption. Based on theore
 tical considerations accounting for inertia and rotational friction\, we d
 erive a functional dependence of the turning response of individuals on th
 eir instantaneous speed\, which is confirmed by experimental data in diffe
 rent systems. We then investigate the interplay of variable speed and spee
 d-dependent turning on self-organized collective behavior. Among others\, 
 we will show that besides the average speed of individuals\, the variabili
 ty in individual speed can have a dramatic impact on the emergent collecti
 ve dynamics. Finally\, we will discuss more broadly the role of adaptive s
 peed for emergence of collective movement in models without explicit align
 ment interactions.
LOCATION:Seminar Room 1\, Newton Institute
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