Fig. 3. Hatching response of Agalychnis callidryas embryos to 32 different temporal patterns of amplitude-matched 0–100 Hz white noise bursts plotted as a function of cycle length. Stimuli vary in duration of and intervals between periods of vibration. Data are mean proportion hatched ± s.e.m. for each stimulus. For comparison, we have also included the responses to four patterns of 0–11 kHz noise (open squares) (from Warkentin, 1995).