We, the disturbing animal: effects of anthropogenic noise in a Brazilian zoo
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Monticelli, P. F., Medeiros Morato, A. C., & Campos Paula, B. (2022). We, the disturbing animal: effects of anthropogenic noise in a Brazilian zoo. Tesis Psicológica, 17(1), 1-33. https://doi.org/10.37511/tesis.v17n1a5

Resumen

The negative effects of loud anthropic sounds on non-human health and welfare urges attention. We report here the results of a technical study we conducted attending a Public Prosecutor’s request at Ribeirão Preto, SP, Brazil. A Civil Inquiry informed against nocive effects of human concentration on captive and free-living animals around the municipal zoo. The zoo is part of a natural protected area that paradoxically was used as a locale for public festivities. We aimed to compare two weekends, one of a traditional Italian event (EV) and another with no event (NE), and check sound level and behavioral changes in a sample of captive animals and in the soundscape. We employed three procedures: (1) Sound Pressure level (SPL) assessment at different localities; (2) Comparative behavior analysis; and (3) Soundscape description. Our results provided cues of how the festivities may be affecting free-living animals in the APA Morro do São Bento and captive ones. Peak SPL exposure was higher in EV in almost all the localities of the zoo; the six monitored individuals (two ocelots, two crassow, the European cervid and the maned-wolf) changed their activity and resting patterns and the soundscape was more diverse and intense in vocal activity than in NE.

https://doi.org/10.37511/tesis.v17n1a5
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