Abstract
We propose a bio-inspired, agent-based approach to describe the natural phenomenon of group chasing in both two and three dimensions. Using a set of local interaction rules we created a continuous-space and discrete-time model with time delay, external noise and limited acceleration. We implemented a unique collective chasing strategy, optimized its parameters and studied its properties when chasing a much faster, erratic escaper. We show that collective chasing strategies can significantly enhance the chasers’ success rate. Our realistic approach handles group chasing within closed, soft boundaries—in contrast with the periodic ones in most published literature—and resembles several properties of pursuits observed in nature, such as emergent encircling or the escaper’s zigzag motion.
Highlights
The animal kingdom is full of fascinating phenomena on every level
In this work we propose a bio-inspired, continuous-space and discrete-time agent-based model of group chasing for the rarely studied scenario in which the evader is significantly faster than the pursuers
Summary: chasers we have demonstrated that those chasers that are unable to catch the prey alone can successfully pursue it if there is a certain, well-parametrized interaction between them, which is their collective chasing tactics
Summary
The animal kingdom is full of fascinating phenomena on every level. An essential part of this diverse biosphere is the complex biological interaction network between different species and within the same species, in which interactions are categorized based on the benefits and harms to the interacting partners. Natural prey–predator systems have already been studied many times, including long-term observations of population dynamics and a large number of field studies about animals’ typical behaviour One factor governing these tendencies is the group hunting of large carnivores, such as lions of the Serengeti, wild chimpanzees in the Tai National Park, and coyotes in Yellowstone National Park [2,3,4]. The results of these investigations revealed many interesting behavioural patterns of the animals, e.g. special hunting tactics and the size of packs
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