Fig. 2. Regulation of the call level by common marmosets. Each data point
represents the median value of one twitter call series (dB re. 20 µPa). (A)
Female: rs=0.904, N=14,
Pc<0.001; (B) Male 1: rs=0.887,
N=12, Pc<0.01; (C) Male 2:
rs=0.816, N=11, Pc<0.01;
(D) Male 3: rs=0.935, N=9,
Pc<0.01.