Spectrally non-overlapping background noise disturbs echolocation via acoustic masking in the CF-FM bat, Hipposideros pratti

Conservation Physiology, Journal Year: 2023, Volume and Issue: 11(1)

Published: Jan. 1, 2023

The environment noise may disturb animal behavior and echolocation via three potential mechanisms: acoustic masking, reduced attention avoidance. Compared with the mechanisms of avoidance, masking is thought to occur only when signal background overlap spectrally temporally. In this study, we investigated effects non-overlapping on pulses electrophysiological responses a constant frequency-frequency modulation (CF-FM) bat, Hipposideros pratti. We found that H. pratti called at higher intensities while keeping CFs their consistent. Electrophysiological tests indicated could decrease auditory sensitivity sharp intensity tuning, suggesting imparts an effect. Because anthropogenic noises are usually concentrated low frequencies bat's pulses, our results provide further evidence negative consequences noise. On basis, sound warning against in foraging habitats echolocating bats.

Language: Английский

Background noise responding neurons in the inferior colliculus of the CF-FM bat, Hipposideros pratti

Hearing Research, Journal Year: 2023, Volume and Issue: 432, P. 108742 - 108742

Published: March 26, 2023

Language: Английский