Terrestrial Megafauna Response to Drone Noise Levels in Ex Situ Areas

Drone use has significantly grown in recent years, and there is a knowledge gap on how the noise produced by these systems may affect animals. We investigated how 18 species of megafauna reacted to drone sound pressure levels at different frequencies. The sound pressure level on the low frequency ge...

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Main Authors: Geison Pires Mesquita, Margarita Mulero-Pázmány, Serge A. Wich, José Domingo Rodríguez-Teijeiro
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Drones
Subjects:
Online Access:https://www.mdpi.com/2504-446X/6/11/333
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author Geison Pires Mesquita
Margarita Mulero-Pázmány
Serge A. Wich
José Domingo Rodríguez-Teijeiro
author_facet Geison Pires Mesquita
Margarita Mulero-Pázmány
Serge A. Wich
José Domingo Rodríguez-Teijeiro
author_sort Geison Pires Mesquita
collection DOAJ
description Drone use has significantly grown in recent years, and there is a knowledge gap on how the noise produced by these systems may affect animals. We investigated how 18 species of megafauna reacted to drone sound pressure levels at different frequencies. The sound pressure level on the low frequency generated by the drone did not change the studied species’ behavior, except for the Asian elephant. All other studied species showed higher noise sensitivity at medium and high frequencies. The Asian elephant was the most sensitive species to drone noise, mainly at low frequencies. Felines supported the highest sound pressure level before showing behavioral reactions. Our results suggest that drone sound pressure levels in different frequencies cause behavioral changes that differ among species, which is relevant to assessing drone disturbances in ex situ environments. The findings presented here can help to reduce drone impact for target species and serve as an experimental study for future drone use guidelines.
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spelling doaj.art-5565e2c7c542473fa57768afa8e33d062023-11-24T04:22:01ZengMDPI AGDrones2504-446X2022-10-0161133310.3390/drones6110333Terrestrial Megafauna Response to Drone Noise Levels in Ex Situ AreasGeison Pires Mesquita0Margarita Mulero-Pázmány1Serge A. Wich2José Domingo Rodríguez-Teijeiro3Institute Baguaçu of Biodiversity Research (IBPBio), São Luís 65050849, MA, BrazilDepartment of Animal Biology, University of Málaga, 29071 Málaga, SpainSchool of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool L3 3AF, UKDepartment of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, 08028 Barcelona, SpainDrone use has significantly grown in recent years, and there is a knowledge gap on how the noise produced by these systems may affect animals. We investigated how 18 species of megafauna reacted to drone sound pressure levels at different frequencies. The sound pressure level on the low frequency generated by the drone did not change the studied species’ behavior, except for the Asian elephant. All other studied species showed higher noise sensitivity at medium and high frequencies. The Asian elephant was the most sensitive species to drone noise, mainly at low frequencies. Felines supported the highest sound pressure level before showing behavioral reactions. Our results suggest that drone sound pressure levels in different frequencies cause behavioral changes that differ among species, which is relevant to assessing drone disturbances in ex situ environments. The findings presented here can help to reduce drone impact for target species and serve as an experimental study for future drone use guidelines.https://www.mdpi.com/2504-446X/6/11/333large mammalsauditory sensitivitybehaviordronessound pressure levelsfrequency
spellingShingle Geison Pires Mesquita
Margarita Mulero-Pázmány
Serge A. Wich
José Domingo Rodríguez-Teijeiro
Terrestrial Megafauna Response to Drone Noise Levels in Ex Situ Areas
Drones
large mammals
auditory sensitivity
behavior
drones
sound pressure levels
frequency
title Terrestrial Megafauna Response to Drone Noise Levels in Ex Situ Areas
title_full Terrestrial Megafauna Response to Drone Noise Levels in Ex Situ Areas
title_fullStr Terrestrial Megafauna Response to Drone Noise Levels in Ex Situ Areas
title_full_unstemmed Terrestrial Megafauna Response to Drone Noise Levels in Ex Situ Areas
title_short Terrestrial Megafauna Response to Drone Noise Levels in Ex Situ Areas
title_sort terrestrial megafauna response to drone noise levels in ex situ areas
topic large mammals
auditory sensitivity
behavior
drones
sound pressure levels
frequency
url https://www.mdpi.com/2504-446X/6/11/333
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