17 papers · ranked by Valyu relevance
Lucy A. Taylor, Graham K. Taylor, Ben Lambert, James A. Walker + 3 more
'Dora Biro' 'Steven J. Portugal' 'Anders Hedenström'] Flapping flight is the most energetically demanding form of sustained forwards locomotion that vertebrates perform. Flock dynamics therefore have significant implications for energy expenditure. Despite this, no studies have quantified the biomechanical consequences…
Fabian Arnold, Michael S. Staniszewski, Lisa Pelzl, Claudia Ramenda + 2 more
'Manfred Gahr' 'Susanne Hoffmann'] Animal collective motion is a natural phenomenon readily observable in various taxa. Although theoretical models can predict the macroscopic pattern of group movements based on the relative spatial position of group members, it is poorly understood how group members exchange…
Olivia Pomerenk, Kenneth S. Breuer
Title: Significance The striking formation patterns of flocking birds have long been hypothesized to yield energetic benefits, which arise from unsteady aerodynamic interactions between birds’ wings and their neighbors’ vortical wakes. Yet despite decades of research, the mechanisms underlying energy savings in…
Lucy A. Taylor, Dora Biro, Ben Lambert, James A. Walker + 2 more
Flapping flight is the most energetically demanding form of sustained forwards locomotion that vertebrates perform. Flock dynamics therefore have significant implications for energy expenditure. Despite this, no studies have quantified the biomechanical consequences of flying in a cluster flock relative to flying solo.…
Gábor Vásárhelyi, Csaba Virágh, Gergő Somorjai, Norbert Tarcai + 3 more
'Tamás Szörényi' 'Tamás Nepusz' 'Tamás Vicsek'] Disclaimer: This work has been accepted for publication at the IEEE IROS 2014 Conference. Copyright with IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new…
Elisa Perinot, Johannes Fritz, Leonida Fusani, Bernhard Voelkl + 1 more
'Marco S. Nobile'] The investigation of the emergent collective behaviour in flying birds is a challenging task, yet it has always fascinated scientists from different disciplines. In the attempt of studying and modelling line formation, we collected high-precision position data of 29 free-flying northern bald ibises…
Daniel W. E. Sankey, Steven J. Portugal
Animals are characterised, in part, by their use of voluntary movement, which is used to explore and exploit resources from their surrounding environment. Movement can therefore benefit animals, but will cost them their energetic reserves. Thus, adaptations for faster movements with negligible increases in energy…
Aaron J. Corcoran, Tyson L. Hedrick
Animal groups have emergent properties that result from simple interactions among individuals. However, we know little about why animals adopt different interaction rules because of sparse sampling among species. Here, we identify an interaction rule that holds across single and mixed-species flocks of four migratory…
Marina Papadopoulou, Hanno Hildenbrandt, Rolf F. Storms, Claudio Carere + 2 more
European starlings perform a great diversity of patterns of collective behaviour when hunted by aerial predators; their large flocks continuously change shape, size, and internal structure. How these complex patterns emerge by self-organization through ‘rules’ at the individual level is still unknown. Here, we combine…
Aaron J Corcoran, Tyson L Hedrick, David Lentink, Ian T Baldwin
Animal groups have emergent properties that result from simple interactions among individuals. However, we know little about why animals adopt different interaction rules because of sparse sampling among species. Here, we identify an interaction rule that holds across single and mixed-species flocks of four migratory…
William Bialek, Andrea Cavagna, Irene Giardina, Thierry Mora + 4 more
'Oliver Pohl' 'Edmondo Silvestri' 'Massimiliano Viale' 'Aleksandra M. Walczak'] Flocks of birds exhibit a remarkable degree of coordination and collective response. It is not just that thousands of individuals fly, on average, in the same direction and at the same speed, but that even the fluctuations around the mean…
Rama Hoetzlein
The aerial flocking of birds, or murmurations, have fascinated observers while presenting many challenges to behavioral study and simulation. We examine how the periphery of murmurations remain well bounded and cohesive. We also investigate agitation waves, which occur when a flock is disturbed, developing a plausible…
J. A. Sekhar
The observed formations of birds-in-flight are studied with a thermal model. Avian formation-flying is tested as a self-organization process. The maximum entropy production rate (MEPR) postulate is examined to determine its applicability to the observed "V" formation during the long-distance migration of large birds. A…
Benjamin Pettit, Andrea Perna, Dora Biro, David J. T. Sumpter
Travelling in groups gives animals opportunities to share route information by following cues from each other's movement. The outcome of group navigation will depend on how individuals respond to each other within a flock, school, swarm or herd. Despite the abundance of modelling studies, only recently have researchers…
Udit Halder, Vidya Raju, Matteo Mischiati, Biswadip Dey + 1 more
'P. S. Krishnaprasad'] Avian flocks display a wide variety of flight behaviors, including steady directed translation of center of mass, rapid change of overall morphology, re-shuffling of positions of individuals within a persistent form, etc. These behaviors may be viewed as flock-scale strategies, emerging from…
Shuqin Zhu, Shahram Ghandeharizadeh
We present flight patterns for a collision-free passage of swarms of drones through one or more openings. The narrow openings provide drones with access to an infrastructure component such as charging stations to charge their depleted batteries and hangars for storage. The flight patterns are a staging area (queues)…
Jessica J. Bellefeuille, Ruchitha C. B. Ratnayake, Emily Cornthwaite, Roslyn Dakin
Grouping with others can provide enhanced information about resources and threats. A key hypothesis in social evolution proposes that individuals can benefit from social information in environments where it is challenging to meet energetic needs. Here, we test this hypothesis by examining the environmental drivers of…