Figure 4 - uploaded by Amadeus Plewnia
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Oscillogram and corresponding spectrogram of two pulsed calls recorded from the holotype of Atelopus colomai sp. n.
Source publication
For nearly four decades, harlequin toads, genus Atelopus, have suffered unparalleled population declines. While this also results in limited understanding of alphataxonomic relationships, these toads face an urgent need for advances in systematics to inform conservation efforts. However, high intraspecific variation and cryptic diversity have hinde...
Contexts in source publication
Context 1
... The call recording (CJ ec.cj.aud.19; Fonozoo Sound Code 14651; Fig. 4) contains 11 pulsed calls with duration 2049 ± 220 ms (1747-2488 ms). Intervals between calls last 3601 ± 1791 ms (1791-6928 ms). Dominant frequency is 2848± 14 Hz (2821-2877. Amplitude is generally ascending over the course of the call being interrupted by 2-4 temporal decreases until it reaches its maximum followed by a subsequent ...
Context 2
... with duration 2049 ± 220 ms (1747-2488 ms). Intervals between calls last 3601 ± 1791 ms (1791-6928 ms). Dominant frequency is 2848± 14 Hz (2821-2877. Amplitude is generally ascending over the course of the call being interrupted by 2-4 temporal decreases until it reaches its maximum followed by a subsequent decrease over the last 3-10 pulses (Fig. 4). Call energy is also present in the frequency components related to the pulse rate, which shows weak modulation and a minimal increase toward the end of the call. Each call consists of 52 ± 6 pulses (42-60), that show a length of 7 ± 2 ms (3-4 ms) each. Pulses slightly increase in length over the course of each call and are not ...
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