Flight



Following Bartumeus et al. (2005), the flights of the Levy Walk can be interpreted as an aggregation of steps in more or less the same direction, separated by acute turns. A variable number of steps can be aggregated into flights using the approach suggested by Turchin (1998). N positions can be aggregated into one flight if all intermediate positions are no more than x m away from the line connecting the first point with point N (see Figure).



 Source:

 de Knegt, H., G. Hengeveld., W.F. de Boer, Frank van Langevelde and Kevin P. Kirkman (2007). Patch density determines movement patterns and foraging efficiency of large herbivores. Behavioural Ecology (18) 1065-1072.