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- Title
Urban noise influences vocalization structure in the House Wren Troglodytes aedon.
- Authors
Redondo, Priscilla; Barrantes, Gilbert; Sandoval, Luis; Hartley., Ian
- Abstract
Urban habitats are noisy and constrain acoustic communication in birds. We analysed the effect of anthropogenic noise on the vocalization characteristics of House Wrens Troglodytes aedon at two sites with different noise levels (rural and urban). We measured in each song and song trill the frequency bandwidth, maximum amplitude, highest and minimum frequency, and trill rate. In noisy urban environments, there was a reduction in bandwidth and an increase in trill rate relative to quieter, rural environments. The whole song of birds from both populations increased in minimum frequency as noise increased, improving song transmission.
- Subjects
HOUSE wren; METROPOLITAN areas; ANIMAL sound production; NOISE; BANDWIDTHS; EMBELLISHMENT (Vocal music)
- Publication
Ibis, 2013, Vol 155, Issue 3, p621
- ISSN
0019-1019
- Publication type
Article
- DOI
10.1111/ibi.12053