Supplementary Information Emergence of collective changes in travel direction of starling flocks from individual birds fluctuations
نویسندگان
چکیده
Alessandro Attanasi, Andrea Cavagna, Lorenzo Del Castello, Irene Giardina ‡, Asja Jelic ‡,∗ Stefania Melillo, Leonardo Parisi, Oliver Pohl1,2,† Edward Shen, and Massimiliano Viale 1 Istituto Sistemi Complessi, Consiglio Nazionale delle Ricerche, UOS Sapienza, 00185 Rome, Italy 2 Dipartimento di Fisica, Università Sapienza, 00185 Rome, Italy 3 Initiative for the Theoretical Sciences, The Graduate Center, City University of New York, 10016 New York, USA 4 Dipartimento di Informatica, Università Sapienza, 00198 Rome, Italy and ‡ e-mail: [email protected], [email protected]
منابع مشابه
Emergence of collective changes in travel direction of starling flocks from individual birds' fluctuations.
One of the most impressive features of moving animal groups is their ability to perform sudden coherent changes in travel direction. While this collective decision can be a response to an external alarm cue, directional switching can also emerge from the intrinsic fluctuations in individual behaviour. However, the cause and the mechanism by which such collective changes of direction occur are n...
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Flocking is a paradigmatic example of collective animal behaviour, where global order emerges out of self-organization. Each individual has a tendency to align its flight direction with those of neighbours, and such a simple form of interaction produces a state of collective motion of the group. When compared with other cases of collective ordering, a crucial feature of animal groups is that th...
متن کاملAn empirical study of large, naturally occurring starling flocks: a benchmark in collective animal behaviour
Bird flocking is a striking example of collective animal behaviour. A vivid illustration of this phenomenon is provided by the aerial display of vast flocks of starlings gathering at dusk over the roost and swirling with extraordinary spatial coherence. Both the evolutionary justification and the mechanistic laws of flocking are poorly understood, arguably because of a lack of data on large flo...
متن کاملInformation transfer and behavioural inertia in starling flocks
Collective decision-making in biological systems requires all individuals in the group to go through a behavioural change of state. During this transition fast and robust transfer of information is essential to prevent cohesion loss. The mechanism by which natural groups achieve such robustness, though, is not clear. Here we present an experimental study of starling flocks performing collective...
متن کاملScale-free correlations in starling flocks.
From bird flocks to fish schools, animal groups often seem to react to environmental perturbations as if of one mind. Most studies in collective animal behavior have aimed to understand how a globally ordered state may emerge from simple behavioral rules. Less effort has been devoted to understanding the origin of collective response, namely the way the group as a whole reacts to its environmen...
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تاریخ انتشار 2015