Document Detail


Urban birds have broader environmental tolerance.
MedLine Citation:
PMID:  17766238     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Urbanization dramatically changes the composition and diversity of biotic communities. The characteristics distinguishing species that persist in urban environments, however, are poorly understood. Here we test the hypothesis that broadly adapted organisms are better able to tolerate urbanization, using a phylogenetically controlled, global comparison of birds. We compared elevational and latitudinal distributions of 217 urban birds found in 73 of the world's largest cities with distributions of 247 rural congeners to test the hypothesis that urban birds possess broader environmental tolerance. Urban birds had markedly broader environmental tolerance than rural congeners, as estimated by elevational and latitudinal distributions. Our results suggest that broad environmental tolerance may predispose some birds to thrive in urban habitats. The mechanisms mediating such environmental tolerance warrant further investigation, but probably include greater behavioural, physiological and ecological flexibility.
Authors:
Frances Bonier; Paul R Martin; John C Wingfield
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biology letters     Volume:  3     ISSN:  1744-9561     ISO Abbreviation:  Biol. Lett.     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-13     Completed Date:  2008-01-24     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  101247722     Medline TA:  Biol Lett     Country:  England    
Other Details:
Languages:  eng     Pagination:  670-3     Citation Subset:  IM    
Affiliation:
Department of Biology, University of Washington, Box 351800, Seattle, WA 98195-1800, USA. fb2@vt.edu
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological*
Animals
Birds / classification,  physiology*
Breeding
Cities
Ecosystem*
Geography
Phylogeny
Seasons
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