DOI: 10.1111/gcb.13070
论文题名: Is supplementary feeding in gardens a driver of evolutionary change in a migratory bird species?
作者: Plummer K.E. ; Siriwardena G.M. ; Conway G.J. ; Risely K. ; Toms M.P.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 12 起始页码: 4353
结束页码: 4363
语种: 英语
英文关键词: Blackcap
; Citizen science
; Climate change
; Contemporary evolution
; Human activities
; Migration
; Urban
; Winter distribution
Scopus关键词: annual variation
; bird
; climate change
; food availability
; human activity
; migratory behavior
; migratory species
; spatial distribution
; urban area
; Central Europe
; United Kingdom
; Aves
; Sylvia atricapilla
; animal
; animal dispersal
; diet
; food intake
; food preference
; Great Britain
; physiology
; population dynamics
; population migration
; season
; songbird
; standards
; Animal Distribution
; Animal Migration
; Animals
; Diet
; Feeding Methods
; Food Preferences
; Great Britain
; Population Dynamics
; Seasons
; Songbirds
英文摘要: Human activities are causing rapid environmental change at a global scale. Urbanization is responsible for some of the most extreme human-altered habitats and is a known driver of evolutionary change, but evidence and understanding of these processes is limited. Here, we investigate the potential underlying mechanisms contributing to the contemporary evolution of migration behaviour in the Eurasian blackcap (Sylvia atricapilla). Blackcaps from central Europe have been wintering in urban areas of Britain with increasing frequency over the past 60 years, rather than migrating south to the Mediterranean. It has been hypothesized that the popularization of providing supplementary foods for wild birds within Britain may have influenced this marked migratory change, but quantifying the selective forces shaping evolutionary changes remains challenging. Using a long-term national scale data set, we examine both the spatial distribution and interannual variation in blackcap wintering behaviour in Britain in relation to supplementary food availability and local climate. Over a 12-year period, we show that blackcaps are becoming increasingly associated with the provision of supplementary foods in British gardens, and that the reliability of bird food supplies is influencing their winter distribution at a national scale. In addition, local climatic temperatures and broader scale weather variation are also important determinants of blackcap wintering patterns once they arrive in Britain. Based on our findings, we conclude that a synergistic effect of increased availability of feeding resources, in the form of garden bird food, coupled with climatic amelioration, has enabled a successful new wintering population to become established in Britain. As global biodiversity is threatened by human-induced environmental change, this study presents new and timely evidence of the role human activities can play in shaping evolutionary trajectories. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61811
Appears in Collections: 影响、适应和脆弱性
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作者单位: British Trust for Ornithology, The Nunnery, Thetford, Norfolk, United Kingdom
Recommended Citation:
Plummer K.E.,Siriwardena G.M.,Conway G.J.,et al. Is supplementary feeding in gardens a driver of evolutionary change in a migratory bird species?[J]. Global Change Biology,2015-01-01,21(12)