Bioacoustical characterization of Phyllostomidae bats in Colombian low montane rain forest
DOI:
https://doi.org/10.18636/bioneotropical.v7i2.600Keywords:
Acoustic, Spectrogram, Phyllostómidae, Ultrasound, Humid Forest.Abstract
The emission of ultrasound allows bats make decisive tasks associated with the interpretation of their surroundings, displacement, orientation and obtaining food. In the case of Phyllostomidae bats, the emissions show high frequencies and low intensities, similarly they complement largely by the sense of smell and in a less proportion, by sight. Objective: This study presents the characterization of bioacoustics emissions for seven species: Artibeus jamaicensis (Leach, 1821) Carollia brevicauda (Schinz, 1821), Carollia perspicillata (Linnaeus, 1758), Phyllostomus hastatus (Pallas, 1767), Phyllostomus discolor (Wagner, 1843) Sturnira luisi (Davis, 1980), Sturnira lilium (E.Geo roy, 1810). Methodology: The acoustic records have been reported in a humid forest in San Francisco,Cundinamarca, Colombia, using the autonomous recorder Song Meter SM2 Bat (Wild Life Acoustics). The emissions were obtained applying closed recording booth space ight method and after, they were visualized using Sonobat 2.9.4 Software. Results: Spectrograms were obtained and a consensus among the spectral values recorded by each specie, with the mean and the standard deviation, then some values are contrasted. Conclusion: Recognition of modulated structures, numerous harmonics and high frequencies. Likewise, after making contrast of spectral values, which are mainly referred to the high or initial frequency (Hif), low or initial frequency (Lof) and duration (ms), with di erent authors, it study recognizes the need to expand studies that take into account characteristics of Phyllostomidae individuals in eld or under controlled conditions.
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