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Title

Brains and the city: big-brained passerine birds succeed in urban environments

AuthorsMaklakov, A.A.; Immler, Simone; González-Voyer, Alejandro; Ronn, J.; Kolm, N.
Issue Date2011
PublisherRoyal Society (Great Britain)
CitationBiology Letters 7: 730- 732 (2011)
AbstractUrban regions are among the most humanaltered environments on Earth and they are poised for rapid expansion following population growth and migration. Identifying the biological traits that determine which species are likely to succeed in urbanized habitats is important for predicting global trends in biodiversity. We provide the first evidence for the intuitive yet untested hypothesis that relative brain size is a key factor predisposing animals to successful establishment in cities. We apply phylogenetic mixed modelling in a Bayesian framework to show that passerine species that succeed in colonizing at least one of 12 European cities are more likely to belong to big-brained lineages than species avoiding these urban areas. These data support findings linking relative brain size with the ability to persist in novel and changing environments in vertebrate populations, and have important implications for our understanding of recent trends in biodiversity.
URIhttp://hdl.handle.net/10261/61062
DOIhttp://dx.doi.org/10.1098/rsbl.2011.0341
Identifiersdoi: 10.1098/rsbl.2011.0341
issn: 1744-9561
Appears in Collections:(EBD) Artículos
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