Role of landscape elements on recent distributional expansion of European Starlings (Sturnus vulgaris) in agroecosystems of the Pampas, Argentina

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Previous studies of European Starlings in Argentina have focused on identifying biological aspects correlated with establishment of new populations in urban and suburban areas. Starlings have recently invaded rural areas in the Pampas. To understand the factors involved in the recent expansion of Eu...

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Autores principales: Bilenca, David Norberto, Codesido, Mariano
Publicado: 2016
Materias:
agriculture
biogeography
biological invasions
Neotropics
Sturnidae
agricultural ecosystem
biological invasion
dispersal
field survey
landscape structure
Neotropical Region
numerical model
passerine
range expansion
Argentina
Europe
Pampas
Sturnus vulgaris
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15594491_v128_n2_p306_Zufiaurre
http://hdl.handle.net/20.500.12110/paper_15594491_v128_n2_p306_Zufiaurre
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_15594491_v128_n2_p306_Zufiaurre
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spelling paper:paper_15594491_v128_n2_p306_Zufiaurre2023-06-08T16:23:49Z Role of landscape elements on recent distributional expansion of European Starlings (Sturnus vulgaris) in agroecosystems of the Pampas, Argentina Bilenca, David Norberto Codesido, Mariano agriculture biogeography biological invasions Neotropics Sturnidae agricultural ecosystem biogeography biological invasion dispersal field survey landscape structure Neotropical Region numerical model passerine range expansion Argentina Europe Pampas Sturnidae Sturnus vulgaris Previous studies of European Starlings in Argentina have focused on identifying biological aspects correlated with establishment of new populations in urban and suburban areas. Starlings have recently invaded rural areas in the Pampas. To understand the factors involved in the recent expansion of European Starlings into these rural habitats, we investigated how expansion patterns were associated with season, proportion of crop fields, distance to woodlots, and distance to small and big urban centers in agroecoystems of the Pampas. We surveyed 392 fields during 2011-2013 to collect data on presence of starlings and landscape features. We found that the range of European Starlings has expanded by a total area of ∼65,000 km2 since 2005, at a linear range expansion rate of 22.2 km per year. Generalized linear mixed model analysis revealed that presence of European Starlings was significantly related with reduced distances to nearest small urban area. Our findings indicate that range expansion of European Starlings into rural areas of Argentina may follow a neighborhood diffusion pattern, by which well-established populations act as sources of individuals that disperse short distances into nearby favorable areas. In absence of human control, this species is expected to continue its spread and population increase. © 2016 The Wilson Ornithological Society. Fil:Bilenca, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Codesido, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15594491_v128_n2_p306_Zufiaurre http://hdl.handle.net/20.500.12110/paper_15594491_v128_n2_p306_Zufiaurre
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic agriculture
biogeography
biological invasions
Neotropics
Sturnidae
agricultural ecosystem
biogeography
biological invasion
dispersal
field survey
landscape structure
Neotropical Region
numerical model
passerine
range expansion
Argentina
Europe
Pampas
Sturnidae
Sturnus vulgaris
spellingShingle agriculture
biogeography
biological invasions
Neotropics
Sturnidae
agricultural ecosystem
biogeography
biological invasion
dispersal
field survey
landscape structure
Neotropical Region
numerical model
passerine
range expansion
Argentina
Europe
Pampas
Sturnidae
Sturnus vulgaris
Bilenca, David Norberto
Codesido, Mariano
Role of landscape elements on recent distributional expansion of European Starlings (Sturnus vulgaris) in agroecosystems of the Pampas, Argentina
topic_facet agriculture
biogeography
biological invasions
Neotropics
Sturnidae
agricultural ecosystem
biogeography
biological invasion
dispersal
field survey
landscape structure
Neotropical Region
numerical model
passerine
range expansion
Argentina
Europe
Pampas
Sturnidae
Sturnus vulgaris
description Previous studies of European Starlings in Argentina have focused on identifying biological aspects correlated with establishment of new populations in urban and suburban areas. Starlings have recently invaded rural areas in the Pampas. To understand the factors involved in the recent expansion of European Starlings into these rural habitats, we investigated how expansion patterns were associated with season, proportion of crop fields, distance to woodlots, and distance to small and big urban centers in agroecoystems of the Pampas. We surveyed 392 fields during 2011-2013 to collect data on presence of starlings and landscape features. We found that the range of European Starlings has expanded by a total area of ∼65,000 km2 since 2005, at a linear range expansion rate of 22.2 km per year. Generalized linear mixed model analysis revealed that presence of European Starlings was significantly related with reduced distances to nearest small urban area. Our findings indicate that range expansion of European Starlings into rural areas of Argentina may follow a neighborhood diffusion pattern, by which well-established populations act as sources of individuals that disperse short distances into nearby favorable areas. In absence of human control, this species is expected to continue its spread and population increase. © 2016 The Wilson Ornithological Society.
author Bilenca, David Norberto
Codesido, Mariano
author_facet Bilenca, David Norberto
Codesido, Mariano
author_sort Bilenca, David Norberto
title Role of landscape elements on recent distributional expansion of European Starlings (Sturnus vulgaris) in agroecosystems of the Pampas, Argentina
title_short Role of landscape elements on recent distributional expansion of European Starlings (Sturnus vulgaris) in agroecosystems of the Pampas, Argentina
title_full Role of landscape elements on recent distributional expansion of European Starlings (Sturnus vulgaris) in agroecosystems of the Pampas, Argentina
title_fullStr Role of landscape elements on recent distributional expansion of European Starlings (Sturnus vulgaris) in agroecosystems of the Pampas, Argentina
title_full_unstemmed Role of landscape elements on recent distributional expansion of European Starlings (Sturnus vulgaris) in agroecosystems of the Pampas, Argentina
title_sort role of landscape elements on recent distributional expansion of european starlings (sturnus vulgaris) in agroecosystems of the pampas, argentina
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15594491_v128_n2_p306_Zufiaurre
http://hdl.handle.net/20.500.12110/paper_15594491_v128_n2_p306_Zufiaurre
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AT codesidomariano roleoflandscapeelementsonrecentdistributionalexpansionofeuropeanstarlingssturnusvulgarisinagroecosystemsofthepampasargentina
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