Fig. 7. The effect of temperature on the frequency of frog calls, with traffic noise held constant at 50 dB(A) L10 18 hr SPL. (A) Dominant frequency of the advertisement call of Litoria ewingii as a function of wet bulb temperature (n = 24). (B) Lower frequency of the advertisement call of Crinia signifera as a function of water temperature (n = 28). Solid lines show the predicted relationships, dashed lines the 95% credible intervals, and circles the mean call frequency observed at each site, corrected for traffic noise.