Optothermal Revolution: Colloids in an Optical Ring Trap

ACS Photonics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Directional motion is commonly observed in various living active systems, such as bacterial colonies moving through confined environments. In these the dynamics arise from collective effects of mutual interactions between individual elements, well their with obstacles or boundaries. this study, we turn our focus to an artificial system and experimentally investigate emergence directional revolution dimer trimer structures composed colloidal particles ring-shaped optical illumination. case, movement exclusively facilitated by optothermal interactions─without any direct mechanical force applied external field. Depending on absorption properties particles, can exhibit both attractive repulsive characteristics. The provide necessary driving that propels motion, while serve control structural parameters system. arrangement interaction within fuel controlled, revolution, gradient acting a confining factor, guiding along specific path. Notably, systems be tuned altering intensity This study useful model for understanding insights into biological where group environmental are key coordinated movement.

Language: Английский

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A multi-scale review of the dynamics of collective behaviour: from rapid responses to ontogeny and evolution

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 378(1874)

Published: Feb. 20, 2023

Collective behaviours, such as flocking in birds or decision making by bee colonies, are some of the most intriguing behavioural phenomena animal kingdom. The study collective behaviour focuses on interactions between individuals within groups, which typically occur over close ranges and short timescales, how these drive larger scale properties group size, information transfer groups group-level making. To date, however, studies have focused snapshots, studying timescales up to minutes hours. However, being a biological trait, much longer important behaviour, particularly change their lifetime (the domain developmental biology) from one generation next evolutionary biology). Here, we give an overview across long, illustrating full understanding this animals requires more research attention its biology. Our review forms prologue special issue, addresses pushes forward development evolution encouraging new direction for research. This article is part discussion meeting issue ‘Collective through time’.

Language: Английский

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Linking energy availability, movement and sociality in a wild primate ( Papio ursinus )

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1916)

Published: Oct. 28, 2024

Proximate mechanisms of ‘social ageing’, i.e. shifts in social activity and narrowing networks, are understudied. It is proposed that energetic deficiencies (which often seen older individuals) may restrict movement and, turn, sociality, but empirical tests these intermediary lacking. Here, we study wild chacma baboons ( Papio ursinus ), combining measures faecal triiodothyronine (fT3), a non-invasive proxy for energy availability, high-resolution GPS data (movement proximity) accelerometry (social grooming durations). Higher (individual mean-centred) fT3 was associated with increased residency time (i.e. remaining the same area longer), which, positively related to opportunities close physical proximity). Individuals more frequent received grooming, whereas given, moderated this effect, suggesting an cost giving grooming. While our results support spirit hypothesis, directionality relationship between availability unexpected suggests lower-energy individuals use strategies reduce costs intermittent locomotion. Thus, future work should consider whether age-related declines sociality be by-product strategy conserve energy. This article part discussion meeting issue ‘Understanding age society using natural populations’.

Language: Английский

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Multispecies collective waving behaviour in fish

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 378(1874)

Published: Feb. 20, 2023

Collective behaviour is widely accepted to provide a variety of antipredator benefits. Acting collectively requires not only strong coordination among group members, but also the integration among-individual phenotypic variation. Therefore, groups composed more than one species offer unique opportunity look into evolution both mechanistic and functional aspects collective behaviour. Here, we present data on mixed-species fish shoals that perform dives. These repeated dives produce water waves capable delaying and/or reducing success piscivorous bird attacks. The large majority in these consist sulphur molly, Poecilia sulphuraria , regularly found second species, widemouth gambusia, Gambusia eurystoma making aggregations. In set laboratory experiments, gambusia were much less inclined dive after an attack as compared with mollies, which almost always dive, though mollies dived deep when paired did dive. By contrast, was influenced by presence diving mollies. dampening effect responsive molly can have evolutionary consequences overall waving expect high proportion unresponsive be effective at producing waves. This article part discussion meeting issue ‘Collective through time’.

Language: Английский

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Personality composition affects group cohesion of homing pigeons in response to novelty and predation threat

Animal Behaviour, Journal Year: 2025, Volume and Issue: unknown, P. 123122 - 123122

Published: March 1, 2025

Language: Английский

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Collective behavior and upstream tactics of schooling fish in an obstacle environment

Environmental Biology of Fishes, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Language: Английский

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Fast and Flexible Multiagent Decision-Making

Annual Review of Control Robotics and Autonomous Systems, Journal Year: 2023, Volume and Issue: 7(1), P. 19 - 45

Published: Nov. 28, 2023

A multiagent system should be capable of fast and flexible decision-making to successfully manage the uncertainty, variability, dynamic change encountered when operating in real world. Decision-making is if it breaks indecision as quickly becomes costly. This requires divergence away from addition convergence a decision. adapts signals important successful operation, even they are weak or rare. tunable sensitivity input for modulating regimes which ultrasensitive robust. Nonlinearity feedback process necessary meeting these requirements. article reviews theoretical principles, analytical results, related literature, applications decentralized nonlinear opinion dynamics that enable among multiple options systems interconnected by communication belief networks. The theory tools provide principled systematic means designing analyzing ranging robot teams social

Language: Английский

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Collective synchrony of mating signals modulated by ecological cues and social signals in bioluminescent sea fireflies

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(2011)

Published: Nov. 29, 2023

Individuals often employ simple rules that can emergently synchronize behaviour. Some collective behaviours are intuitively beneficial, but others like mate signalling in leks occur across taxa despite theoretical individual costs. Whether disparate instances of synchronous similarly organized is unknown, largely due to challenges observing many individuals simultaneously. Recording field collectives and ex situ playback experiments, we describe principles bioluminescent signals produced by marine ostracods (Crustacea; Luxorina) seem behaviorally convergent with terrestrial fireflies, whom they last shared a common ancestor over 500 Mya. Like groups males use visual cues (intensity duration light) decide when signal. Individual also modulate their signal based on the distance nearest neighbours. During peak darkness, luminescent 'waves' displays emerge ripple sea floor approximately every 60 s, such periodicity decays within between nights after full moon. Our data reveal these aggregations sensitive both ecological social light sources. Because function difficult dissect, evolutionary convergence, diverse arthropods, provides natural replicates understand generalities produce emergent group

Language: Английский

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Individual and ecological heterogeneity promote complex communication in social vertebrate group decisions

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1905)

Published: May 20, 2024

To receive the benefits of social living, individuals must make effective group decisions that enable them to achieve behavioural coordination and maintain cohesion. However, heterogeneity in physical environments surrounding decision-making contexts can increase level difficulty organisms face making decisions. Groups live variable (high ecological heterogeneity) experience barriers information transfer increased levels uncertainty. In addition, groups with large phenotypic variation individual heterogeneity), have substantial conflicts interest regarding timing nature activities, it difficult for coordinate their behaviours or reach a consensus. such cases, active communication individuals' abilities coordination, as by facilitating aggregation about environment preferences. Here, we review role vertebrate its relationship contexts. We propose complex has evolved facilitate specific socio-ecological contexts, provide framework studying this topic testing related hypotheses part future research area. This article is theme issue 'The power sound: unravelling how acoustic shapes dynamics'.

Language: Английский

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Flocking Method for Identifying of Neural Circuits in Optogenetic Datasets

Lecture notes in computer science, Journal Year: 2024, Volume and Issue: unknown, P. 39 - 52

Published: Jan. 1, 2024

Language: Английский

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