On the intermittent behaviour of foraging animalsA. M. Reynolds
Rothamsted Research - Harpenden, Hertfordshire, AL5 2JQ, UK
received 18 May 2006; accepted in final form 30 June 2006
published online 12 July 2006
Many foragers adopt an intermittent searching behaviour in which active local search phases randomly alternate with relocation phases. The average duration of the searching phases has a power-law dependency upon the average duration of the relocation phases. Here it is shown that this observed power-law scaling can be understood within the context of an optimal scale-free (Lévy-flight) searching strategy.
02.50.Ey - Stochastic processes.
05.10.Gg - Stochastic analysis methods (Fokker-Planck, Langevin, etc.).
05.40.Fb - Random walks and Levy flights.
© EDP Sciences 2006