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Sobroza TV, Gordo M, Dunn JC, Pequeno PACL, Naissinger BM, Barnett APA. Pied tamarins change their vocal behavior in response to noise levels in the largest city in the Amazon. Am J Primatol 2024; 86:e23606. [PMID: 38340360 DOI: 10.1002/ajp.23606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/14/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024]
Abstract
Many animal species depend on sound to communicate with conspecifics. However, human-generated (anthropogenic) noise may mask acoustic signals and so disrupt behavior. Animals may use various strategies to circumvent this, including shifts in the timing of vocal activity and changes to the acoustic parameters of their calls. We tested whether pied tamarins (Saguinus bicolor) adjust their vocal behavior in response to city noise. We predicted that both the probability of occurrence and the number of long calls would increase in response to anthropogenic noise and that pied tamarins would temporally shift their vocal activity to avoid noisier periods. At a finer scale, we anticipated that the temporal parameters of tamarin calls (e.g., call duration and syllable repetition rate) would increase with noise amplitude. We collected information on the acoustic environment and the emission of long calls in nine wild pied tamarin groups in Manaus, Brazil. We found that the probability of long-call occurrence increased with higher levels of anthropogenic noise, though the number of long calls did not. The number of long calls was related to the time of day and the distance from home range borders-a proxy for the distance to neighboring groups. Neither long-call occurrence nor call rate was related to noise levels at different times of day. We found that pied tamarins decreased their syllable repetition rate in response to anthropogenic noise. Long calls are important for group cohesion and intergroup communication. Thus, it is possible that the tamarins emit one long call with lower syllable repetition, which might facilitate signal reception. The occurrence and quantity of pied tamarin' long calls, as well as their acoustic proprieties, seem to be governed by anthropogenic noise, time of the day, and social mechanisms such as proximity to neighboring groups.
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Affiliation(s)
- Tainara Venturini Sobroza
- Projeto Sauim-de-Coleira, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Centro de Estudos Integrados da Biodiversidade Amazônica- CENBAM/PPBio de Pesquisa de Mamíferos Amazônicos, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
- Grupo de Pesquisa de Mamíferos Amazônicos, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Conservação e Uso de Recursos Naturais, Universidade Federal de Rondônia, Boa Vista, Rondônia, Brazil
| | - Marcelo Gordo
- Projeto Sauim-de-Coleira, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Jacob C Dunn
- Department of Archaeology & Anthropology, University of Cambridge, Cambridge, UK
- Behavioural Ecology Research Group, Anglia Ruskin University, Cambridge, UK
- Department of Cognitive Biology, University of Vienna, Vienna, Austria
| | | | | | - Adrian Paul Ashton Barnett
- Grupo de Pesquisa de Mamíferos Amazônicos, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
- Departamento de Zoologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
- Departamento de Ciências Biológicas, Universidade Estadual do Maranhão, São Luis, Maranhão, Brazil
- Department of Natural Sciences, Middlesex University, London, UK
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Abraham A, Duvall E, Ferraro K, Webster A, Doughty C, le Roux E, Ellis‐Soto D. Understanding anthropogenic impacts on zoogeochemistry is essential for ecological restoration. Restor Ecol 2022. [DOI: 10.1111/rec.13778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew Abraham
- School of Informatics, Computing and Cyber Systems Northern Arizona University Flagstaff USA
| | - Ethan Duvall
- Department of Ecology and Evolutionary Biology Cornell University Ithaca USA
| | - Kristy Ferraro
- School of the Environment Yale University Connecticut USA
| | - Andrea Webster
- Mammal Research Institute University of Pretoria Pretoria South Africa
| | - Chris Doughty
- School of Informatics, Computing and Cyber Systems Northern Arizona University Flagstaff USA
| | - Elizabeth le Roux
- Mammal Research Institute University of Pretoria Pretoria South Africa
- Centre for Biodiversity Dynamics in a Changing World (BIOCHANGE), Section of EcoInformatics and Biodiversity, Department of Biology Aarhus University Denmark
- Environmental Change Institute, School of Geography and the Environment University of Oxford Oxford UK
| | - Diego Ellis‐Soto
- Department of Ecology and Evolutionary Biology Yale University Connecticut USA
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Barrigón Morillas JM, Rey Gozalo G, Montes-González D, Vílchez-Gómez R, Gómez Escobar V. Variability of traffic noise pollution levels as a function of city size variables. ENVIRONMENTAL RESEARCH 2021; 199:111303. [PMID: 34019896 DOI: 10.1016/j.envres.2021.111303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/05/2021] [Accepted: 05/05/2021] [Indexed: 06/12/2023]
Abstract
Noise levels measured in 27 cities with different areas (from 0.6 km2 to 59.27 km2) and populations (from approximately 2000 to 70,000 inhabitants) were compared with respect to five different urban characteristics (population, area, total street length, density, and linear density). Comparisons were conducted for both overall city noise levels and noise registered on five types of roads with different functionality using the Categorisation Method. The results showed that four of the five cities' characteristics presented a significant correlation with the noise levels (all except for density). The calculated correlations were better for noise levels in the different categories than the overall noise values, with higher explained variability on the streets with more traffic. Therefore, the road categorisation method can be used not only to assess the noise variations within cities, but also to better explain the effect of noise on the analysed city characteristics. The results of the calculated relationships enable the estimation of noise levels both currently and in future urban developments of noise values on different types of streets.
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Affiliation(s)
| | - Guillermo Rey Gozalo
- INTERRA, Lambda, Departamento de Física Aplicada, Universidad de Extremadura, Cáceres, Spain; Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, 5 Poniente 1670, 3460000, Talca, Chile.
| | - David Montes-González
- INTERRA, Lambda, Departamento de Física Aplicada, Universidad de Extremadura, Cáceres, Spain; ISISE, Departamento de Engenharia Civil, Universidade de Coimbra, Luis Reis dos Santos 290, Coimbra, Portugal
| | - Rosendo Vílchez-Gómez
- INTERRA, Lambda, Departamento de Física Aplicada, Universidad de Extremadura, Cáceres, Spain
| | - Valentín Gómez Escobar
- INTERRA, Lambda, Departamento de Física Aplicada, Universidad de Extremadura, Cáceres, Spain
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Montes González D, Barrigón Morillas JM, Rey Gozalo G, Godinho L. Evaluation of exposure to road traffic noise: Effects of microphone height and urban configuration. ENVIRONMENTAL RESEARCH 2020; 191:110055. [PMID: 32805250 DOI: 10.1016/j.envres.2020.110055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/06/2020] [Accepted: 08/02/2020] [Indexed: 06/11/2023]
Abstract
Noise pollution is a major environmental problem due to its impact on human health and implications for other spheres of society. Since road traffic is the main source of noise pollution, the use of measurement methodologies to accurately determine the environmental noise levels to which the façades of buildings in cities are exposed is an important issue. This paper presents an experimental study in urban environments that uses different configurations to evaluate the influence of the position of the microphone and the parking lanes on the levels of road traffic noise to which the population is exposed. In urban settings in which sound waves propagate without obstacles between the lanes of traffic and the receivers, broadband results for the differences between noise levels measured by microphones placed at heights of 4.0 and 1.5 m showed a significant increase with an increase in the distance between the microphone and sound source of between -0.8 and 0.9 dBA over a range from 2 to 8 m. This difference between the two microphones was greater at points where a lane of parked vehicles was located between the road traffic lanes and the receivers were placed near the façades of building. At the same heights, the broadband difference in sound levels ranged from 2.7 to 4.5 dBA. This acoustic shielding effect due to the presence of parked vehicles started to be relevant in the 250 Hz band and increased progressively with frequency. Taking into account these experimental results and the recommendations in the European Noise Directive, it would be important to apply corrections to sound indicators for road traffic noise that are related to the height of the microphone. Making a distinction between urban configurations with and without lines of parked vehicles between the microphone and the road traffic lanes would be advisable.
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Affiliation(s)
- David Montes González
- ISISE, Departamento de Engenharia Civil, Universidade de Coimbra, Luis Reis Dos Santos 290, Coimbra, Portugal; INTERRA, Lambda, Departamento de Física Aplicada, Universidad de Extremadura, Cáceres, Spain
| | | | - Guillermo Rey Gozalo
- INTERRA, Lambda, Departamento de Física Aplicada, Universidad de Extremadura, Cáceres, Spain.
| | - Luís Godinho
- ISISE, Departamento de Engenharia Civil, Universidade de Coimbra, Luis Reis Dos Santos 290, Coimbra, Portugal
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