Elongation isopleths for simulated data. Elongation isopleths for simulated data created by sorted hulls by perimeter-area ratio (A) and eccentricity of bounding ellipse (B). Isopleth levels indicate the proportion of total points enclosed. Blue isopleths represents contours of low elongation (i.e., non-directional movement), while red indicates higher levels of elongation. Hulls constructed using the a-method (s=0.3, a=220).