A5081197069- Animal Behavior and Reproduction
- Primate Behavior and Ecology
- Evolutionary Game Theory and Cooperation
- Evolutionary Psychology and Human Behavior
- Distributed Control Multi-Agent Systems
- Insect and Arachnid Ecology and Behavior
- Neuroendocrine regulation and behavior
- Plant and animal studies
- Child and Animal Learning Development
- Animal Vocal Communication and Behavior
- Ecosystem dynamics and resilience
- Biomimetic flight and propulsion mechanisms
- Fish Ecology and Management Studies
- Opinion Dynamics and Social Influence
- Language and cultural evolution
- Evacuation and Crowd Dynamics
- Mathematical and Theoretical Epidemiology and Ecology Models
- Avian ecology and behavior
- Micro and Nano Robotics
- Evolution and Genetic Dynamics
- Memory and Neural Mechanisms
- Animal Ecology and Behavior Studies
- Human-Animal Interaction Studies
- Diffusion and Search Dynamics
- Wildlife Ecology and Conservation
University of Groningen
2015-2024
PhytoCeutica (United States)
2010
Rijksmuseum
2009
University of Zurich
1994-2005
University of Leeds
2000
Information Technology University
1999-2000
Royal Anthropological Institute
2000
Utrecht University
1989-1992
J.M. Burgerscentrum
1990-1991
Abstract Activity and autonomous motion are fundamental in living engineering systems. This has stimulated the new field of ‘active matter’ recent years, which focuses on physical aspects propulsion mechanisms, motility-induced emergent collective behavior a larger number identical agents. The scale agents ranges from nanomotors microswimmers, to cells, fish, birds, people. Inspired by biological various designs synthetic nano- micromachines have been proposed. Such machines provide basis...
Models of self-organization have proved useful in revealing what processes may underlie characteristics swarms. In this study, we review model-based explanations for aspects the shape and internal structure groups fish birds travelling undisturbed (without predator threat). Our models attribute specific collective traits to locomotory properties. Fish slow down avoid collisions swim at a constant depth, whereas fly low variability speed lose altitude during turning. both birds, ‘bearing...
Abstract There is increasing evidence that fish gain energetic benefits from the hydrodynamic interactions when they swim in a school. The most recent indications of such are lower tail (or fin) beat at back school and reduced oxygen consumption schooling versus solitary ones. How advantages may arise poorly understood. Current theories concern either swimming side by or diamond configuration largely ignore effects viscosity among wakes individuals. In reality, however, complex many...
Through combining theoretical models and empirical data, complexity science has increased our understanding of social behavior animals, in particular insects, primates, fish. What are missing studies collective huge swarms birds. Recently detailed data have been collected the swarming maneuvers large flocks thousands starlings (Sturnus vulgaris) at their communal sleeping site (roost). Their flocking dazzling changes density flock shape, but processes underlying them still a mystery. Recent...
Abstract Models of swarming (based on avoidance, alignment and attraction) produce patterns behaviour also seen in schools fish. However, the significance such similarities has been questioned, because some model assumptions are unrealistic [e.g. speed most models is constant with random error, perception global size that have studied small (up to 128 individuals)]. This criticism applies our former model, which we demonstrated emergence two spatial organization, i.e. oblong school form high...
Abstract Lower visibility of female scientists, compared to male is a potential reason for the under‐representation women among senior academic ranks. Visibility in scientific community stems partly from presenting research as an invited speaker at organized meetings. We analysed sex ratio presenters E uropean S ociety volutionary B iology ( ESEB ) C ongress 2011, where all abstract submissions were accepted presentation. Women under‐represented speakers symposia (15% women) (46%), regular...
Flocks of birds are highly variable in shape all contexts (while travelling, avoiding predation, wheeling above the roost). Particularly amazing this respect aerial displays huge flocks starlings (Sturnus vulgaris) sleeping site at dawn. The causes variability hardly known, however. Here we hypothesise that increases when there larger local differences movement behaviour flock. We investigate hypothesis with help a model self-organisation travelling groups, called StarDisplay, since such has...
Bird flocks under predation demonstrate complex patterns of collective escape. These may emerge by self-organization from local interactions among group-members. Computational models have been shown to be valuable for identifying what behavioral rules govern such individuals during motion. However, our knowledge escape is limited the lack quantitative data on bird in field. In present study, we analyze first GPS trajectories pigeons airborne attacked a robotic falcon order build...
Abstract Leadership is not an inherent quality of animal groups that show directional locomotion. However, there are other factors may be responsible for the occurrence leadership in fish shoals, such as individual differences nutritional state between group members. It appears front have a strong influence on shoal movements and individuals occupy positions often characterised by larger body lengths lower state. Potential interactions two their importance positioning within shoals need...
Single behavioural differences between egalitarian and despotic animal societies are often assumed to reflect specific adaptations. However, in the present paper, I will show an individual–orientated model, how many traits of virtual arise as emergent characteristics. The artificial entities live a homogeneous world only aggregate, upon meeting one another may perform dominance interactions which effects winning losing self–reinforcing. behaviour these is studied similar way that real...
In fish schools the density varies per location and often individuals are sorted according to familiarity and/or body size. High is considered advantageous for protection against predators this sorting believed be not only avoid but also finding food. paper, we list a number of mechanisms study, with help an individual-based model schooling agents, which spatial patterns may result from them. our model, regulated by following rules: avoiding those that close by, aligning at intermediate...
Individual-based models of schooling in fish have demonstrated that, via processes self-organization, artificial may school the absence a leader or external stimuli, using local information only. We study for first time how body size and form affect formation such model. For variety group sizes we describe characteristics (i.e., form, spread, density, polarization, turning rate, speed) depend on characteristics. Furthermore, demonstrate that nearest neighbor distance rate individuals are...
Collective behaviour of animals has been a main focus recent research, yet few empirical studies deal with this issue in the context predation, major driver social complexity many animal species. When starling (Sturnus vulgaris) flocks are under attack by raptor, such as peregrine falcon (Falco peregrinus), they show great diversity patterns collective escape. The corresponding structural concerns rapid variation density and shape flock over time. Here, we present first step towards...
Complex patterns of collective behaviour may emerge through self-organization, from local interactions among individuals in a group. To understand what behavioural rules underlie these patterns, computational models are often necessary. These have not yet been systematically studied for bird flocks under predation. Here, we study airborne homing pigeons attacked by robotic falcon, combining empirical data with species-specific model escape. By analysing GPS trajectories flocking individuals,...