Table 1.

Effects of call duration and bandwidth on distance of focus (DOF)

Duration (ms) Bandwidth (kHz)
tPr2tPr2Overall regression equation
10.63<0.00130.8-14.16<0.00144.1DOF=0.689+0.191Dur-0.012BW; F2,253=600, P<0.001, r2=82.6
  • Results reported are from multiple regression analyses based on individual calls. Duration (Dur.; ms) was not related to bandwidth (BW; kHz) (F1,254=2.3; P=0.13), so the actual, rather than residual, bandwidth values were used in the multiple regression analysis.