DOI: 10.1111/gcb.12098
论文题名: Anthropogenic noise decreases urban songbird diversity and may contribute to homogenization
作者: Proppe D.S. ; Sturdy C.B. ; St. Clair C.C.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 4 起始页码: 1075
结束页码: 1084
语种: 英语
英文关键词: Anthropogenic noise
; Bird song
; Diversity
; Frequency
; Urban abundance
Scopus关键词: abundance
; anthropogenic effect
; greenbelt
; greenspace
; habitat fragmentation
; noise
; population decline
; songbird
; species richness
; urban area
; animal
; article
; biodiversity
; noise
; songbird
; urbanization
; Animals
; Biodiversity
; Noise
; Songbirds
; Urbanization
; Aves
; Passeri
英文摘要: More humans reside in urban areas than at any other time in history. Protected urban green spaces and transportation greenbelts support many species, but diversity in these areas is generally lower than in undeveloped landscapes. Habitat degradation and fragmentation contribute to lowered diversity and urban homogenization, but less is known about the role of anthropogenic noise. Songbirds are especially vulnerable to anthropogenic noise because they rely on acoustic signals for communication. Recent studies suggest that anthropogenic noise reduces the density and reproductive success of some bird species, but that species which vocalize at frequencies above those of anthropogenic noise are more likely to inhabit noisy areas. We hypothesize that anthropogenic noise is contributing to declines in urban diversity by reducing the abundance of select species in noisy areas, and that species with low-frequency songs are those most likely to be affected. To examine this relationship, we calculated the noise-associated change in overall species richness and in abundance for seven common songbird species. After accounting for variance due to vegetative differences, species richness and the abundance of three of seven species were reduced in noisier locations. Acoustic analysis revealed that minimum song frequency was highly predictive of a species' response to noise, with lower minimum song frequencies incurring greater noise-associated reduction in abundance. These results suggest that anthropogenic noise affects some species independently of vegetative conditions, exacerbating the exclusion of some songbird species in otherwise suitable habitat. Minimum song frequency may provide a useful metric to predict how particular species will be affected by noise. In sum, mitigation of noise may enhance habitat suitability for many songbird species, especially for species with songs that include low-frequency elements. © 2012 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62472
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Biological Sciences, University of Alberta, Edmonton, AB , T6G 2E9, Canada; Department of Psychology, Centre for Neuroscience, University of Alberta, Edmonton, AB T6G 2E9, Canada
Recommended Citation:
Proppe D.S.,Sturdy C.B.,St. Clair C.C.. Anthropogenic noise decreases urban songbird diversity and may contribute to homogenization[J]. Global Change Biology,2013-01-01,19(4)