Issue
EPL
Volume 79, Number 3, August 2007
Article Number 30006
Number of page(s) 5
Section General
DOI http://dx.doi.org/10.1209/0295-5075/79/30006
Published online 18 July 2007
EPL, 79 (2007) 30006
DOI: 10.1209/0295-5075/79/30006

Avoidance of conspecific odour trails results in scale-free movement patterns and the execution of an optimal searching strategy

A. M. Reynolds

Rothamsted Research - Harpenden, Hertfordshire, AL5 2JQ, UK

andy.reynolds@bbsrc.ac.uk

received 18 May 2007; accepted in final form 19 June 2007; published August 2007
published online 18 July 2007

Abstract
It is shown how optimal Lévy flight searching patterns for the location of sparsely and randomly distributed targets can emerge from conspecific avoidance (i.e. behaviour designed to avoid locations previously traversed by individuals of the same species). The findings may account for the scale-free foraging movements of jackals and ground-foraging beetles.

PACS
05.40.Fb - Random walks and Levy flights.
05.10.Gg - Stochastic analysis methods (Fokker-Planck, Langevin, etc.).
02.50.Ey - Stochastic processes.

© Europhysics Letters Association 2007