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Urban Bird Ecology and Conservation$
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Christopher A. Lepczyk and Paige S. Warren

Print publication date: 2012

Print ISBN-13: 9780520273092

Published to California Scholarship Online: May 2013

DOI: 10.1525/california/9780520273092.001.0001

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From Forests to Cities: Effects of Urbanization on Tropical Birds

From Forests to Cities: Effects of Urbanization on Tropical Birds

(p.32) (p.33) Chapter Three From Forests to Cities: Effects of Urbanization on Tropical Birds
Urban Bird Ecology and Conservation

Ian MacGregor-Fors

Lorena Morales-Pérez

Jorge E. Schondube

University of California Press

Urban development modifies natural habitats by replacing their fundamental components with new ones, causing a loss of biodiversity. However, we know little about urbanization effects on birds in tropical areas of the world. We studied the bird communities of forest habitats and in the city of Morelia, in a region of western Mexico. Bird-species richness was negatively related to urbanization, while bird abundance was positively related to it. Richness was also positively related to tree foliage and herbaceous cover and negatively affected by human activity. Bird abundances were positively related to building and herbaceous height. Although we did not find significant relationships between bird diversity and income, residential areas with the highest bird-species richness corresponded to high-income areas.

Keywords:   bird communities, citywide survey, diversity, habitat structure, socioeconomic attributes, species turnover, urban ecology, urbanization gradient

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