Evaluation of road borders in the pampas region as a source of resources for birds

Increasing land transformation from grassland to crops in the Pampas Region leads to habitat fragmentation for birds. Unused habitat margins provide food, shelter and corridors to birds. We described bird community and resources for birds in road borders adjacent to three road types (unpaved and pav...

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Autores principales:	Mermoz, M.E., Depalma, D.M., Valverde, A.C., Gancedo, J.M., Charnelli, E.M.
Formato:	JOUR
Materias:	Arthropod availability Avian community Conservation Road borders
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00733407_v31_n1_p_Mermoz
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00733407_v31_n1_p_Mermoz
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spelling	todo:paper_00733407_v31_n1_p_Mermoz2023-10-03T14:53:32Z Evaluation of road borders in the pampas region as a source of resources for birds Mermoz, M.E. Depalma, D.M. Valverde, A.C. Gancedo, J.M. Charnelli, E.M. Arthropod availability Avian community Conservation Road borders Increasing land transformation from grassland to crops in the Pampas Region leads to habitat fragmentation for birds. Unused habitat margins provide food, shelter and corridors to birds. We described bird community and resources for birds in road borders adjacent to three road types (unpaved and paved of one or two lanes per hand) in General Madariaga, Buenos Aires Province. We estimated bird abundance, and its association with arthropod availability and vegetation cover. Borders of unpaved roads showed higher bird abundance and richness than those from both kind of paved roads, and higher diversity than borders of paved roads with one lane per hand. The abundance of bird species of high conservation value was higher in unpaved and two-lanes than in one-lane paved roads. Arthropod availability did not vary between roads and did not affect insectivorous birds’ abundance. More cover of reedbed and bulrush and less cover of bare ground had a positive effect on the abundance of birds of higher conservation value and a negative effect on the abundance of birds of less concern. Our results suggest that unpaved roads are the most suitable for birds. Among paved roads, one-lane roads are the least suitable, but this may be due to the higher reedbed-bulrush cover of two-lanes which may favour the species of higher conservation value. Future studies are needed in order to detect which other factors influence the abundance of birds of higher conservation value in unpaved and one lane per hand roads and to confirm the importance of redbeed and bulrush for these species. © 2016, Association Ornitologica del Plata. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00733407_v31_n1_p_Mermoz
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Arthropod availability Avian community Conservation Road borders
spellingShingle	Arthropod availability Avian community Conservation Road borders Mermoz, M.E. Depalma, D.M. Valverde, A.C. Gancedo, J.M. Charnelli, E.M. Evaluation of road borders in the pampas region as a source of resources for birds
topic_facet	Arthropod availability Avian community Conservation Road borders
description	Increasing land transformation from grassland to crops in the Pampas Region leads to habitat fragmentation for birds. Unused habitat margins provide food, shelter and corridors to birds. We described bird community and resources for birds in road borders adjacent to three road types (unpaved and paved of one or two lanes per hand) in General Madariaga, Buenos Aires Province. We estimated bird abundance, and its association with arthropod availability and vegetation cover. Borders of unpaved roads showed higher bird abundance and richness than those from both kind of paved roads, and higher diversity than borders of paved roads with one lane per hand. The abundance of bird species of high conservation value was higher in unpaved and two-lanes than in one-lane paved roads. Arthropod availability did not vary between roads and did not affect insectivorous birds’ abundance. More cover of reedbed and bulrush and less cover of bare ground had a positive effect on the abundance of birds of higher conservation value and a negative effect on the abundance of birds of less concern. Our results suggest that unpaved roads are the most suitable for birds. Among paved roads, one-lane roads are the least suitable, but this may be due to the higher reedbed-bulrush cover of two-lanes which may favour the species of higher conservation value. Future studies are needed in order to detect which other factors influence the abundance of birds of higher conservation value in unpaved and one lane per hand roads and to confirm the importance of redbeed and bulrush for these species. © 2016, Association Ornitologica del Plata. All rights reserved.
format	JOUR
author	Mermoz, M.E. Depalma, D.M. Valverde, A.C. Gancedo, J.M. Charnelli, E.M.
author_facet	Mermoz, M.E. Depalma, D.M. Valverde, A.C. Gancedo, J.M. Charnelli, E.M.
author_sort	Mermoz, M.E.
title	Evaluation of road borders in the pampas region as a source of resources for birds
title_short	Evaluation of road borders in the pampas region as a source of resources for birds
title_full	Evaluation of road borders in the pampas region as a source of resources for birds
title_fullStr	Evaluation of road borders in the pampas region as a source of resources for birds
title_full_unstemmed	Evaluation of road borders in the pampas region as a source of resources for birds
title_sort	evaluation of road borders in the pampas region as a source of resources for birds
url	http://hdl.handle.net/20.500.12110/paper_00733407_v31_n1_p_Mermoz
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Evaluation of road borders in the pampas region as a source of resources for birds

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