Video-Sound Recording Devices Reveal Multiple Drivers of Nocturnal Vocalizations in Tibetan Macaques.

ABSTRACT: Nocturnal vocalizations not only reflect communications at night, but also reveal adaptive strategies of animals. Previous research focused on the vocalizations of nocturnal species, with little attention to nocturnal vocalizations in diurnal animals. Furthermore, sound studies traditionally employ an active acoustic monitoring approach which is limited in terms of the range of sound collection and is not combined with video data. To fill in these gaps, we studied the nocturnal vocalization of diurnal primates, Tibetan macaques (Macaca thibetana) in Huangshan, China by 4G infrared cameras and passive acoustic monitoring devices. Results showed that Tibetan macaques had a possible bimodal distribution of nocturnal vocalization count, with peaks occurring at 18:00-19:00 and 21:00-23:0

SUBMITTER: Gao X 

PROVIDER: S-EPMC12700726 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature