Figure 5.

Interindividual variation of sensitivity tuning and directional tuning in four species of field crickets. For each individual, the best frequency in tuning and the width of the tuning curve 5 dB above the best frequency (blue diamonds and horizontal bar) as well as the optimum of directional tuning and the width of the tuning curve 5 dB below the optimum (red square and horizontal bar) are shown. In addition, the mean values for sensitivity and directionality are given as dashed, vertical blue and red lines, respectively. The range of variation, and the mean value, of the male CF is shown as horizontal and vertical black bars, respectively.