Emergent oscillations assist obstacle negotiation during ant cooperative transport

@inproceedings{Gelblum2021EmergentOA,
  title={Emergent oscillations assist obstacle negotiation during ant cooperative transport},
  author={Aviram Gelblum and Itai Pinkoviezky and Ehud Fonio and Nir S. Gov and Ofer Feinerman},
  year={2021}
}
Collective motion by animal groups is affected by internal interactions, external constraints and the influx of information. A quantitative understanding of how these different factors give rise to different modes of collective motion is, at present, lacking. Here, we study how ants that cooperatively transport a large food item react to an obstacle blocking their path. Combining experiments with a statistical physics model of mechanically coupled active agents, we show that the constraint… 
Impact of Variable Speed on Collective Movement of Animal Groups
TLDR
It is shown, that besides average speed, the individual speed variability may have a dramatic impact on the emergent collective dynamics, as two groups differing only in their speed variability, and being otherwise identical in all other behavioral parameters, can be in two fundamentally different stationary states.
Programming active cohesive granular matter with mechanically induced phase changes
TLDR
A fruitful interplay between algorithm design and active matter robophysics that can result in principles for programming collectives without the need for complex algorithms or capabilities is revealed.
Formation of stable and responsive collective states in suspensions of active colloids
TLDR
Experimental evidence is provided by investigating the stability of swirls formed by light-responsive active colloids which adjust their individual motion to positions and orientations of neighbours to support the idea of system-independent organisation principles of collective states.
Ant collective cognition allows for efficient navigation through disordered environments
TLDR
This work uses percolation theory and proves that whenever the labyrinth is solvable, a logarithmically small sensing range suffices for extreme speedup, demonstrating the potential advantages of group living and collective cognition in increasing a species’ habitable range.
Response of insect swarms to dynamic illumination perturbations
TLDR
It is found that not only do individuals in the swarm respond to light changes by speeding up during brighter conditions but also the swarm as a whole responds to these perturbations by compressing and simultaneously increasing the attraction of individual midges to its centre of mass.
Cargo capture and transport by colloidal swarms
TLDR
This scheme exploits unique interactions and stochastic dynamics in colloidal swarms to capture and transport microscopic cargo in a robust, stable, error-tolerant, and dynamic manner.
Three-dimensional time-resolved trajectories from laboratory insect swarms
TLDR
A data set of three-dimensional, time-resolved trajectories, including positions, velocities, and accelerations, of individual insects in laboratory insect swarms is provided to study the collective as a whole as well as the dynamics and behaviour of individuals within the swarm.
Effects of load mass and size on cooperative transport in ants over multiple transport challenges
TLDR
Crazy ants excel at cooperative transport despite wide load variation, as effects of load properties vary across transport challenges, and groups struggling to move large loads may find obstacle navigation easier.
Cohesive self-organization of mobile microrobotic swarms.
TLDR
It is found that a balance of magnetic dipolar attraction and multipolar repulsion between self-assembled particle chain microrobots enables their self-organization into cohesive clusters.
Reconfigurable assembly of colloidal motors towards interactive soft materials and systems.
  • Shurui Yuan, Xiankun Lin, Qiang He
  • Medicine
    Journal of colloid and interface science
  • 2021
TLDR
Progress is summarized on reconfigurable assembly of colloidal motors which is driven and modulated by chemical reactions and external fields and the corresponding mechanisms are discussed in detail.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 36 REFERENCES
Ant groups optimally amplify the effect of transiently informed individuals
TLDR
The theoretical models predict that the ant-load system can be transitioned through the critical point of this mesoscopic system by varying its size; the findings show that efficient group-level processes can arise from transient amplification of individual-based knowledge.
Experimental Study and Modeling of Group Retrieval in Ants as an Approach to Collective Transport in Swarm Robotic Systems
TLDR
A comprehensive overview of group retrieval in ants is presented and this phenomenon in Aphaenogaster cockerelli is investigated in order to extract the ants' roles during transport, the rules that govern their actions, and the individual forces that they apply to guide a food item to their nest.
Deciphering Interactions in Moving Animal Groups
TLDR
Using video tracks of fish shoal in a tank, it is shown how a careful, incremental analysis at the local scale allows for the determination of the stimulus/response function governing an individual's moving decisions, yielding a novel schooling model whose parameters are all estimated from data.
Cooperative transport in ants: a review of proximate mechanisms
TLDR
This work provides a review of the behavioral rules that separate the efficient cooperative transporters from the inefficient, as well as a flowchart of the cooperative transport process that enables careful modeling of cooperative transport from a mechanistic perspective.
Collective States, Multistability and Transitional Behavior in Schooling Fish
TLDR
This study demonstrates that collective motion can be effectively mapped onto a set of order parameters describing the macroscopic group structure, revealing the existence of at least three dynamically-stable collective states; swarm, milling and polarized groups.
Inferring the rules of interaction of shoaling fish
TLDR
Three key rules for the social interactions of mosquitofish (Gambusia holbrooki) are identified, which are different from the classical models of collective animal motion, raising new questions about how fish and other animals self-organize on the move.
Collective Motion
TLDR
It is demonstrated both numerically and analytically that even in certain one dimensional self-propelled particle systems an ordered phase exists for finite noise levels.
Locust Collective Motion and Its Modeling
TLDR
A wide range of recent modeling and simulation approaches are described, from discrete agent-based models of self-propelled particles to continuous models of integro-differential equations, aimed at describing and analyzing the fascinating phenomenon of locust collective motion.
Interaction ruling animal collective behavior depends on topological rather than metric distance: Evidence from a field study
TLDR
It is argued that a topological interaction is indispensable to maintain a flock's cohesion against the large density changes caused by external perturbations, typically predation, and supported by numerical simulations.
From Disorder to Order in Marching Locusts
TLDR
This work confirmed the prediction of a rapid transition from disordered to ordered movement and identified a critical density for the onset of coordinated marching in locust nymphs, and demonstrated a dynamic instability in motion at densities typical of locusts in the field.
...
1
2
3
4
...