Jähnichen, Gisa and Paula Stefanini (2022). Exploring Sound Emission in Shanghai Zoo as a Public Space. JUCR, 25: 51-63. (original) (raw)
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We, the disturbing animal: effects of anthropogenic noise in a Brazilian zoo
Tesis Psicológica, 2022
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 highe...
Zoo visitor effect on mammal behaviour: Does noise matter?
The zoo visitor effect is the change in animal behaviour and physiology in response to the presence of a viewing public. It is thought to result from, amongst other things, visitor generated sound (i.e., noise), but this hypothesis has never been explicitly tested. We tested this hypothesis through observations on the behaviour and enclosure use of 12 mammal species held in 12 separate enclosures at the Belo Horizonte Zoo when exposed to different sound pressure levels (i.e., noise) from the visiting public. Noise pollution levels were significantly higher with the public present and increased with increasing audience size. Species that are more popular suffered greater noise pollution from the zoo visitors. No overall effects on behaviour were found in relation to noise levels, however, analysis of behaviour at the individual level found some significant differences. Notably, half of the individuals increased their vigilance behaviour with increasing sound levels and approximately onethird of individuals increased their movements. These results show that zoo visitors have a negative welfare impact on individual zoo-housed mammals, especially groups of noisy visitors where levels were recorded outside of the recommended limits for human wellbeing (>70 dB(A)). Thus, zoos need to address this issue, probably, through a combination of visitor education campaigns and acoustic modification to enclosures.
Zoo visitor noise effect AABS 2014.pdf
The zoo visitor effect is the change in animal behaviour and physiology in response to the presence of a viewing public. It is thought to result from, amongst other things, visitor generated sound (i.e., noise), but this hypothesis has never been explicitly tested. We tested this hypothesis through observations on the behaviour and enclosure use of 12 mammal species held in 12 separate enclosures at the Belo Horizonte Zoo when exposed to different sound pressure levels (i.e., noise) from the visiting public. Noise pollution levels were significantly higher with the public present and increased with increasing audience size. Species that are more popular suffered greater noise pollution from the zoo visitors. No overall effects on behaviour were found in relation to noise levels, however, analysis of behaviour at the individual level found some significant differences. Notably, half of the individuals increased their vigilance behaviour with increasing sound levels and approximately onethird of individuals increased their movements. These results show that zoo visitors have a negative welfare impact on individual zoo-housed mammals, especially groups of noisy visitors where levels were recorded outside of the recommended limits for human wellbeing (>70 dB(A)). Thus, zoos need to address this issue, probably, through a combination of visitor education campaigns and acoustic modification to enclosures.
A desirable privation: exploring silence as a mode of zoo visiting
Trace: Journal for Human-Animal Studies, 2023
This article describes and discusses a set of exercises in silent zoo visiting conducted at two zoos in the Southwest of the UK in 2019. The visits were part of a wider project on the auditory culture of zoos, institutions which have tended to be analysed by reference to their concern with the visual display of captive other-than-human animals (henceforth animals). Linking ideas on silence that have emerged from work in anthropology and sound studies respectively, the article explores the notion that among many other affordances, silence can generate opportunities for reflection and the consideration of alternatives, in this case in relation to a prevailing zoo visiting culture often characterised by loud anthropogenic sound. Examining extracts and observations from discussions among participants, the article illustrates how this novel form of visiting fostered a variety of types and qualities of experience. It also provided an impetus for participants to notice and focus on specific animals and aspects of animal lives they might not otherwise have considered. Such meditation could foster feelings of connection to particular zoo animals, while also opening up possibilities for more detached contemplation. The silent visits led participants to produce critical perspectives on conventional zoo visiting, and to imagine future possibilities for the auditory culture of zoos. The article shows that silence can serve as a productive methodological tool in the exploration of human-animal relations, and demonstrates how sound is integral to the formation of those relations within, and by implication beyond, the zoo.
Zoo Noise Study APPLAN3888.pdf
The zoo visitor effect is the change in animal behaviour and physiology in response to the presence of a viewing public. It is thought to result from, amongst other things, visitor generated sound (i.e., noise), but this hypothesis has never been explicitly tested. We tested this hypothesis through observations on the behaviour and enclosure use of 12 mammal species held in 12 separate enclosures at the Belo Horizonte Zoo when exposed to different sound pressure levels (i.e., noise) from the visiting public. Noise pollution levels were significantly higher with the public present and increased with increasing audience size. Species that are more popular suffered greater noise pollution from the zoo visitors. No overall effects on behaviour were found in relation to noise levels, however, analysis of behaviour at the individual level found some significant differences. Notably, half of the individuals increased their vigilance behaviour with increasing sound levels and approximately onethird of individuals increased their movements. These results show that zoo visitors have a negative welfare impact on individual zoo-housed mammals, especially groups of noisy visitors where levels were recorded outside of the recommended limits for human wellbeing (>70 dB(A)). Thus, zoos need to address this issue, probably, through a combination of visitor education campaigns and acoustic modification to enclosures.
The effects of music on animal physiology, behavior and welfare
Lab Animal, 2013
Physiological and psychological effects of listening to music have been documented in humans. The changes in physiology, cognition and brain chemistry and morphology induced by music have been studied in animal models, providing evidence that music may affect animals similarly to humans. Information about the potential benefits of music to animals suggests that providing music may be used as a means of improving the welfare of laboratory animals, such as through environmental enrichment, stress relief and behavioral modification. The authors review the current research on music's effect on animals' physiology and behavior and discuss its potential for improving animal welfare. They conclude that the benefits of providing music to laboratory animals depend on the species and the type of music.
Human Ecology, 2017
The increasing levels of stress entailed by contemporary urban lifestyles can lead to a greater desire to escape from cities. The restorative sense of 'being away' produced by natural environments has been substantially explored in greenspaces but little studied in zoos, which endeavour to immerse visitors in a local or exotic environment through both the visual environment and soundscape. We explore how soundscapes contribute to this sense of immersion through self-reflective interviews with 20 participants in two zoos in Paris (France). The zoo was perceived as a natural or a socially crowded area depending on the auditory context. Interestingly, focusing on the captive exotic animals seemed to make participants more aware of the more common birds around them in the zoo. By highlighting both, zoos could potentially increase awareness and care for urban biodiversity.
Why we should keep quiet at the zoo
ETHICS IN SCIENCE AND ENVIRONMENTAL POLITICS, 2024
Zoos are typically public attractions that do not explicitly, or through a more implicit culture, expect quietness from their guests. This paper will explore whether quietness is something we should aim for when we are visiting zoos. Primarily through analogy with other public spaces which share some of the key characteristics of zoos (libraries and schools, cinemas, theatres and galleries, war memorials, and hospitals and gardens), we suggest that quiet is indeed appropriate in zoos (more appropriate than being noisy). A major component of this argument will be the exploration of what is meant by quiet (and noise), and outlining a concept of quietness based on an idea of attention. The central premise here, drawing upon theories of attention and love, is that noise involves a certain kind of outward expression, which leaves less room for the appreciation of, and attention to, the animals and information that the zoo provides. The article will reflect on how a call for quiet may create scope for enhancing the educational possibilities of zoos, and how zoos might profit by taking the acoustic dimension of visitor behaviour into account when considering their values.