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Fig. 1. Hatching response of Agalychnis callidryas embryos to 300 s
vibration playbacks eliciting similar overall levels of hatching and matched
for duty cycle but differing in cycle length. (A) Hatching as a function of
time; hatching was slower with longer cycles. Inset: stimuli used in
playbacks, constructed from bursts of 0–100 Hz synthetic white noise.
Waveforms of 12 s of the pattern of (top to bottom) 0.1:1 s, 0.25:2.5 s, 0.5:5
s, 1:10 s duration: interval times. (B) Hatching as a function of cycles of
vibration. As cycle length increased, embryos sampled progressively fewer
cycles before hatching. Data are means ± s.e.m. of 10 clutches per
stimulus. Different letters indicate significantly different cumulative
hatching curves.
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