. Bonner zoologische Monographien. Zoology. « 105 10 Frequency (kHz) A i B % 1 500 1000 ms. 1000 ms : Audiospectrogram and oscillogram of the two call types of Hyla sp. A (type A, left; type B, right) from Provincia Chapare, 500 m Recording obtained on 13 December 1998. Air temperature °C. long pulsed notes: 11-19 pulses per note ( ± ), duration 99-195 ms ( ± ), pulses per second ( ± ), dominant frequency range 3360-4060 Hz ( ± ); (2) short pulsed notes: pulses per note 2-5 ( ± ), duration 27-75 ms ( ± ), pulse rate is
. Bonner zoologische Monographien. Zoology. « 105 10 Frequency (kHz) A i B % 1 500 1000 ms. 1000 ms : Audiospectrogram and oscillogram of the two call types of Hyla sp. A (type A, left; type B, right) from Provincia Chapare, 500 m Recording obtained on 13 December 1998. Air temperature °C. long pulsed notes: 11-19 pulses per note ( ± ), duration 99-195 ms ( ± ), pulses per second ( ± ), dominant frequency range 3360-4060 Hz ( ± ); (2) short pulsed notes: pulses per note 2-5 ( ± ), duration 27-75 ms ( ± ), pulse rate is the same as in long pulsed notes, dominant frequency range 3340-3920 Hz ( ± ); (3) whistles: duration 97-164 ms ( ± ), without pulses, upward frequency modulation from 3390 Hz at beginning to 3910 Hz at the end of note, dominant frequency range 3710-3820 Hz ( ± ); (4) call type A: duration 310-327 ms ( ± ), inter note interval 82-134 ms ( ± ); (5) call type B: duration 309-452 ms ( ± ), inter note interval 79-103 ms ( ± ). Twenty- one calls of three individuals analyzed; air temperature was °C at time of recording. Due to some morphological similarities of Hyla sp. A and H. minuta, it appears adequate to compare the call characteristics described above with published data of calls of//, minuta. The pulsed calls of Hyla sp. A differ mainly to known calls of H. minuta in a significant lower pulse repetition rate w ithin the calls. In the fol- lowing, pulse rates of calls of different populations of H. minuta provided in the literature are listed: 156-193 pulses per second, Puerto Almacen, Bolivia. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bonn, Zoologisches Forschungsinstitut und Museum Alexander Koenig
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