Figure 7: Comparison of echolocation calls between C. thonglongyai and M. siligorensis.
From: The evolution of sensory divergence in the context of limited gene flow in the bumblebee bat
The calls of C. thonglongyai (top panels) and M. siligorensis (bottom panels) were recorded from free flying bats in an open environment. The amplitude panels a and b show the pattern of calls over a period of 1 s for C. thonglongyai ((a), interval between calls=62 ms) and M. siligorensis ((b), interval between calls=87 ms). Panels c and e show in detail the amplitude for one call per species, whereas panels d and f show the fast Fourier transformation spectrogram of these same calls. Frequency change over time for one call per species can be seen in the spectrograms. For all panels, the X axis represents time (in ms).
