Fig. 2From: A novel approach to quantifying the spatiotemporal behavior of instrumented grey seals used to sample the environmentIndividual sampling effort. Intensity of area use is represented by density quantiles. Each density quantile contains a percentage of GPS surface locations (25, 50, 75, 95) and is color coded based on intensity of use (bright green=highest, light blue=lowest). Small grey points represent GPS surface locations. Larger, colored points represent 69 kHz transmissions color coded by day of the month. Area estimates (km 2) for the 25 % and 95 % density quantiles are shown in the lower right hand cornerBack to article page