Bird communities along urbanization gradients: A comparative analysis among three neotropical cities

Urbanization is expanding continuously over rural and natural areas and it is imperative to analyze its effect on bird communities. Although the impact of urbanization on bird communities in the Neotropical region has been explored by several authors, there is a scarcity of comparative studies with...

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Detalles Bibliográficos
Autores principales: Leveau, L.M., Leveau, C.M., Villegas, M., Cursach, J.A., Suazo, C.G.
Formato: JOUR
Materias:
Biotic homogenization
Bird abundance
Bird richness
Composition
Conservation
Exotic species
Urbanization
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10754377_v28_n_p77_Leveau
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_10754377_v28_n_p77_Leveau2023-10-03T16:03:19Z Bird communities along urbanization gradients: A comparative analysis among three neotropical cities Leveau, L.M. Leveau, C.M. Villegas, M. Cursach, J.A. Suazo, C.G. Biotic homogenization Bird abundance Bird richness Composition Conservation Exotic species Urbanization Urbanization is expanding continuously over rural and natural areas and it is imperative to analyze its effect on bird communities. Although the impact of urbanization on bird communities in the Neotropical region has been explored by several authors, there is a scarcity of comparative studies with standardized methodologies that allow establishing whether the effects of urbanization are similar in different ecoregions. We analyzed the urbanization impact on bird communities in three Neotropical cities. Cities were located in different biomes: La Paz (Bolivia) surrounded by a highland plateau and inter-Andean valleys; Mar del Plata (Argentina) surrounded by agroecosystems of the pampas; and Osorno (Chile), surrounded by agroecosystems, timber plantations, and remnants of temperate forests. In general, high levels of urbanization correlated negatively with bird richness in the three cities, but the response of bird richness to urbanization varied among cities, being linearly negative in La Paz and Osorno and declining only towards high levels of urbanization in Mar del Plata. The effect of urbanization was stronger in La Paz, where more bird species were absent toward higher urbanization levels. Bird abundance did not show significant responses to urbanization. Exotic bird abundance showed a positive relationship with urbanization in the three cities. Bird composition differed between cities and urbanization levels. The House Sparrow (Passer domesticus) was the most abundant species in more urbanized sites, the Eared Dove (Zenaida auriculata) in moderate levels of urbanization, whereas the Rufous-collared Sparrow (Zonotrichia capensis) was most abundant in the less urbanized sites. The results of our study showed that the impact of urbanization on bird communities in the Neotropical region varied among cities, probably as a result of latitude and the structure of rural areas. © The Neotropical Ornithological Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10754377_v28_n_p77_Leveau
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Biotic homogenization
Bird abundance
Bird richness
Composition
Conservation
Exotic species
Urbanization
spellingShingle Biotic homogenization
Bird abundance
Bird richness
Composition
Conservation
Exotic species
Urbanization
Leveau, L.M.
Leveau, C.M.
Villegas, M.
Cursach, J.A.
Suazo, C.G.
Bird communities along urbanization gradients: A comparative analysis among three neotropical cities
topic_facet Biotic homogenization
Bird abundance
Bird richness
Composition
Conservation
Exotic species
Urbanization
description Urbanization is expanding continuously over rural and natural areas and it is imperative to analyze its effect on bird communities. Although the impact of urbanization on bird communities in the Neotropical region has been explored by several authors, there is a scarcity of comparative studies with standardized methodologies that allow establishing whether the effects of urbanization are similar in different ecoregions. We analyzed the urbanization impact on bird communities in three Neotropical cities. Cities were located in different biomes: La Paz (Bolivia) surrounded by a highland plateau and inter-Andean valleys; Mar del Plata (Argentina) surrounded by agroecosystems of the pampas; and Osorno (Chile), surrounded by agroecosystems, timber plantations, and remnants of temperate forests. In general, high levels of urbanization correlated negatively with bird richness in the three cities, but the response of bird richness to urbanization varied among cities, being linearly negative in La Paz and Osorno and declining only towards high levels of urbanization in Mar del Plata. The effect of urbanization was stronger in La Paz, where more bird species were absent toward higher urbanization levels. Bird abundance did not show significant responses to urbanization. Exotic bird abundance showed a positive relationship with urbanization in the three cities. Bird composition differed between cities and urbanization levels. The House Sparrow (Passer domesticus) was the most abundant species in more urbanized sites, the Eared Dove (Zenaida auriculata) in moderate levels of urbanization, whereas the Rufous-collared Sparrow (Zonotrichia capensis) was most abundant in the less urbanized sites. The results of our study showed that the impact of urbanization on bird communities in the Neotropical region varied among cities, probably as a result of latitude and the structure of rural areas. © The Neotropical Ornithological Society.
format JOUR
author Leveau, L.M.
Leveau, C.M.
Villegas, M.
Cursach, J.A.
Suazo, C.G.
author_facet Leveau, L.M.
Leveau, C.M.
Villegas, M.
Cursach, J.A.
Suazo, C.G.
author_sort Leveau, L.M.
title Bird communities along urbanization gradients: A comparative analysis among three neotropical cities
title_short Bird communities along urbanization gradients: A comparative analysis among three neotropical cities
title_full Bird communities along urbanization gradients: A comparative analysis among three neotropical cities
title_fullStr Bird communities along urbanization gradients: A comparative analysis among three neotropical cities
title_full_unstemmed Bird communities along urbanization gradients: A comparative analysis among three neotropical cities
title_sort bird communities along urbanization gradients: a comparative analysis among three neotropical cities
url http://hdl.handle.net/20.500.12110/paper_10754377_v28_n_p77_Leveau
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AT cursachja birdcommunitiesalongurbanizationgradientsacomparativeanalysisamongthreeneotropicalcities
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