A few in the know can lead the many, according to new research into travelling animal groups carried out by the universities of Leeds and Oxford. Crowds of Leeds biology undergraduates will be observed to test their theory later this year.
Large groups of animals such as bees, fish, sheep and birds have to make collective decisions about which direction to take, although only a few individuals know the route. Some animals use signals to communicate, such as the honeybee’s famous ‘waggle-dance’. But such signals don’t work in large groups because individuals can only see the animals closest to them.
Leeds professor in behavioural ecology Jens Krause and Oxford biologist Dr Iain Couzin created a computer model based on observations of animals to show how information is shared. They looked at groups which don’t use signalling or have a leader. The model revealed that the larger the group, the smaller the proportion of informed animals needed to guide it, and only a small proportion of animals in the know is needed for accuracy. Animals are capable of agreeing which way to go when informed individuals in the group have different preferences about which way to travel, even though these individuals don’t know if they are in the majority or minority.
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22.05.2018 | Universität Basel
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22.05.2018 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
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