Fig. 3

a The number of larvae cannibalized by day 28 and b the number of days until one larva was left, regressed against the number of larval moves during the experiment simulating natural conditions. The regression lines are based on the studied populations at all latitudes: adjusted R ² = 0.327 and P < 0.001, and adjusted R ² = 0.142 and P = 0.002 for the (a) and (b) figures, respectively