Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 118, Issue 20, Pages -Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.2004369118
Keywords
termites; collective behavior; social insects; preferential attachments; Levy walks
Categories
Funding
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES) [001]
- Minas Gerais State Foundation for the Support of Scientific Resarch (Fapemig)
- Brazilian National Council for Scientific Development (CNPq)
- CNPq [PQ 307990/2017-6, PQ 310395/2019-4, PQ 306778/2015-7]
- Biotechnology and Biological Sciences Research Council's Industrial Strategy Challenge Fund [BBS/OS/CP/000001]
- Universidad Nacional Autonoma de Mexico -Programa de Apoyo a Proyectos de Investigacion e Innovacion Tecnologica (UNAM-PAPIIT) [IN107619]
- CIENCIA SEM FRONTEIRAS grant from CAPES-Brazil (2013-2015)
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As the number or density of interacting individuals in a social group increases, a transition can develop to a collective coherent pattern from uncorrelated and disordered behavior of the individuals. The value of the scaling exponent mu of a power law describing the Levy walk of an individual is collectively modified as the density of animals in the group changes. This effect is absent when termites interact with inert obstacles.
As the number or density of interacting individuals in a social group increases, a transition can develop from uncorrelated and disordered behavior of the individuals to a collective coherent pattern. We expand this observation by exploring the fine details of termite movement patterns to demonstrate that the value of the scaling exponent mu of a power law describing the Le ' vy walk of an individual is modified collectively as the density of animals in the group changes. This effect is absent when termites interact with inert obstacles. We also show that the network of encounters and interactions among specific individuals is selective, resembling a preferential attachment mechanism that is important for social networking. Our data strongly suggest that preferential attachments, a phenomenon not reported previously, and favorite interactions with a limited number of acquaintances are responsible for the generation of Le ' vy movement patterns in these social insects.
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