Anthropogenic noise reduces approach of Black-capped Chickadee (Poecile atricapillus) and Tufted Titmouse (Baeolophus bicolor) to Tufted Titmouse mobbing calls

The condor

Megan D. Gall³  Jacob Damsky⁴ 

[1] Accepted: October 18, 2016;Published: December 28, 2016Cited byEdward J. Raynor, Cara E. Whalen, Mary Bomberger Brown and Larkin A. Powell. (2017) Grassland bird community and acoustic complexity appear unaffected by proximity to a wind energy facility in the Nebraska Sandhills. The Condor 119:3, 484-496.;however, we saw no effect of noise on feeding behavior. Our data support the hypothesis that anthropogenic noise can alter behavioral responses to chick-a-dee calls. This finding is of particular concern because chick-a-dee calls are given in response to a threatening stimulus. If receivers are slow to respond to these warnings, they may be unable to take advantage of the warning.RESUMEN La comunicación exitosa entre un emisor y un receptor es fundamental para coordinar comportamientos entre los organismos. Esta coordinación puede verse afectada negativamente por ruido antropogénico, el cual se ha demostrado que altera la producción de señales vocales en muchas especies de aves. Además de afectar a los emisores, el ruido también puede alterar la recepción y la respuesta comportamental. En este trabajo investigamos los efectos del ruido antropogénico sobre la respuesta comportamental a las señales acústicas en bandadas mixtas de especies de aves canoras. Empleamos la reproducción de llamados previamente grabados de tipo chick-a-dee de Baeolophus bicolor y de ruido antropogénico local para determinar cómo los receptores responden a las llamadas con y sin la adición de ruido. Encontramos que la adición de ruido causó una disminución significativa de aproximadamente 80% en el número de aves que se acercaron al parlante durante la reproducción de la llamada chick-a-dee. Sin embargo, no vimos un efecto del ruido en el comportamiento de alimentación. Nuestros datos apoyan la hipótesis de que el ruido antropogénico puede alterar las respuestas comportamentales a las llamadas de tipo chick-a-dee. Esto es preocupante, ya que las llamadas de tipo chick-a-dee son emitidas como respuesta a una amenaza. Si los receptores son lentos en responder a estas advertencias, pueden ser incapaces de aprovechar el hecho de que se emita una advertencia. Palabras clave: depredadores, enmascaramiento, polución sonora, urbanización Keywords: masking, predators, noise pollution, urbanizationReceived: August 11, 2016;Department of Biology, Vassar College, Poughkeepsie, New York, USACorresponding author: [e-mail] ABSTRACT Successful communication between a sender and a receiver is critical for coordinating behaviors between organisms. This coordination can be disturbed by anthropogenic noise, which has been shown to alter vocal signal production in many species of birds. In addition to affecting senders, noise may also alter reception and behavioral response. Here we investigated the effects of anthropogenic noise on behavioral response to acoustic signals in mixed-species flocks of songbirds. We used playbacks of Tufted Titmouse (Baeolophus bicolor) chick-a-dee calls and local anthropogenic noise to determine how receivers respond to calls with and without added noise. We found that the addition of noise caused a significant decrease of ∼80% in the number of birds that approached the speaker during a chick-a-dee call playback

关键词: masking;    predators;    noise pollution;    urbanization;   

DOI  :  10.1650/CONDOR-16-146.1

学科分类：动物科学

来源: Central Ornithology Publication Office

【 摘 要 】

Successful communication between a sender and a receiver is critical for coordinating behaviors between organisms. This coordination can be disturbed by anthropogenic noise, which has been shown to alter vocal signal production in many species of birds. In addition to affecting senders, noise may also alter reception and behavioral response. Here we investigated the effects of anthropogenic noise on behavioral response to acoustic signals in mixed-species flocks of songbirds. We used playbacks of Tufted Titmouse (Baeolophus bicolor) chick-a-dee calls and local anthropogenic noise to determine how receivers respond to calls with and without added noise. We found that the addition of noise caused a significant decrease of ∼80% in the number of birds that approached the speaker during a chick-a-dee call playback; however, we saw no effect of noise on feeding behavior. Our data support the hypothesis that anthropogenic noise can alter behavioral responses to chick-a-dee calls. This finding is of particular concern because chick-a-dee calls are given in response to a threatening stimulus. If receivers are slow to respond to these warnings, they may be unable to take advantage of the warning.

【 授权许可】

CC BY