. Bonner zoologische Monographien. Zoology. * 123 Frequency (kHz). 2000 ms 1000 2000 ms : Audiospectrogram and oscillogram of the advertisement call of Eleutherodacniiis platy-dactylus from Sehuencas. 2150 m Recording obtained on 19 December 1997. Air temperature °C. regular inter\als at a rate of calls per minute: call energy was distributed between 1500 and 7200 Hz. with a dominant frequency peak at 2390 Hz: har- monic frequency bands were recognizable at 4600 and 6979 Hz. Nine calls of one individual analyzed; Air temperature was °C during recording. At La Hoyada, P
. Bonner zoologische Monographien. Zoology. * 123 Frequency (kHz). 2000 ms 1000 2000 ms : Audiospectrogram and oscillogram of the advertisement call of Eleutherodacniiis platy-dactylus from Sehuencas. 2150 m Recording obtained on 19 December 1997. Air temperature °C. regular inter\als at a rate of calls per minute: call energy was distributed between 1500 and 7200 Hz. with a dominant frequency peak at 2390 Hz: har- monic frequency bands were recognizable at 4600 and 6979 Hz. Nine calls of one individual analyzed; Air temperature was °C during recording. At La Hoyada, Provincia Florida, Departamento Santa Cruz, 1700 m , as well as at a point south of Karahuasi, Provincia Carrasco, Departamento Cochabamba, 2170 m beside single notes three series of notes were recorded in total, each consisting of 14 notes (!) repeated with an approximate rate of notes per sec- ond. Air temperature during both recordings was around °C. Data of the calls from Sehuencas coincide relatively well with the data of calls from La Siberia provided by Marquez et al. (1995), except that the authors report- ed a shorter note duration. The longer calls recorded at La Hoyada and near Karahuasi consisted of a remarkably large number of notes, not reported before. Differences in vocalization among Bolivian populations of £. plan^dactylus may indicate that additional species are involved. Remarks: Eleutherodactylus platy-dactylus is an extremely polymorphic species (De la Riva 1993b, 1998, Köhler et al. 1995a). There is large intra- and interpopulational variation in coloration, body size, as well as in skin texture. It. 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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