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

The condor

¹ 

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 】

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; 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 part...

【 授权许可】

CC BY