Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem

The Neotropical Region has experienced large habitat transformations as a result of intensified agriculture. These changes have affected the populations of many species of birds in the Espinal ecoregion of Argentina. However, relationships between birds and agriculture in the neotropics are poorly k...

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Autores principales:	Di Giacomo, Adrián Santiago, López de Casenave, Javier Néstor
Publicado:	2010
Materias:	Alfalfa Bird abundance Bird richness Farmland birds Grasslands South american agriculture Soybean Aves Glycine max Medicago sativa
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v112_n2_p283_DiGiacomo http://hdl.handle.net/20.500.12110/paper_00105422_v112_n2_p283_DiGiacomo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00105422_v112_n2_p283_DiGiacomo
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spelling	paper:paper_00105422_v112_n2_p283_DiGiacomo2023-06-08T14:34:34Z Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem Di Giacomo, Adrián Santiago López de Casenave, Javier Néstor Alfalfa Bird abundance Bird richness Farmland birds Grasslands South american agriculture Soybean Aves Glycine max Medicago sativa The Neotropical Region has experienced large habitat transformations as a result of intensified agriculture. These changes have affected the populations of many species of birds in the Espinal ecoregion of Argentina. However, relationships between birds and agriculture in the neotropics are poorly known. We assessed the effects of crops and field margins in an area of agriculture typical for the Espinal ecoregion on the structure of the bird community, and we assessed the value of this habitat for species of conservation concern. birds and vegetation were sampled in and along the margins of fields of soybean (the most widespread crop) and alfalfa. Twenty-five of the 41 species recorded-including all the species of conservation concern-were found almost exclusively in field margins; only five species occurred almost exclusively in within the fields. All other species were found in both margins and fields. Density, richness, and diversity were much greater on the margins than in the fields. bird density in soy fields was lower than in alfalfa. bird richness and diversity in the two crops, however, did not differ. Density in field margins increased with the cover and height of trees and shrubs. most of the field-margin species were woodland-border species, but the species of conservation concern were all associated with grassy field margins. because further declines in the populations of these threatened species are expected, their conservation in agricultural areas would benefit from a broad policy of habitat-conservation plans for field margins such as those practiced in North America and Europe. © The Cooper Ornithological Society 2010. Fil:Di Giacomo, A.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:De Casenave, J.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v112_n2_p283_DiGiacomo http://hdl.handle.net/20.500.12110/paper_00105422_v112_n2_p283_DiGiacomo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Alfalfa Bird abundance Bird richness Farmland birds Grasslands South american agriculture Soybean Aves Glycine max Medicago sativa
spellingShingle	Alfalfa Bird abundance Bird richness Farmland birds Grasslands South american agriculture Soybean Aves Glycine max Medicago sativa Di Giacomo, Adrián Santiago López de Casenave, Javier Néstor Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem
topic_facet	Alfalfa Bird abundance Bird richness Farmland birds Grasslands South american agriculture Soybean Aves Glycine max Medicago sativa
description	The Neotropical Region has experienced large habitat transformations as a result of intensified agriculture. These changes have affected the populations of many species of birds in the Espinal ecoregion of Argentina. However, relationships between birds and agriculture in the neotropics are poorly known. We assessed the effects of crops and field margins in an area of agriculture typical for the Espinal ecoregion on the structure of the bird community, and we assessed the value of this habitat for species of conservation concern. birds and vegetation were sampled in and along the margins of fields of soybean (the most widespread crop) and alfalfa. Twenty-five of the 41 species recorded-including all the species of conservation concern-were found almost exclusively in field margins; only five species occurred almost exclusively in within the fields. All other species were found in both margins and fields. Density, richness, and diversity were much greater on the margins than in the fields. bird density in soy fields was lower than in alfalfa. bird richness and diversity in the two crops, however, did not differ. Density in field margins increased with the cover and height of trees and shrubs. most of the field-margin species were woodland-border species, but the species of conservation concern were all associated with grassy field margins. because further declines in the populations of these threatened species are expected, their conservation in agricultural areas would benefit from a broad policy of habitat-conservation plans for field margins such as those practiced in North America and Europe. © The Cooper Ornithological Society 2010.
author	Di Giacomo, Adrián Santiago López de Casenave, Javier Néstor
author_facet	Di Giacomo, Adrián Santiago López de Casenave, Javier Néstor
author_sort	Di Giacomo, Adrián Santiago
title	Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem
title_short	Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem
title_full	Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem
title_fullStr	Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem
title_full_unstemmed	Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem
title_sort	use and importance of crop and field-margin habitats for birds in a neotropical agricultural ecosystem
publishDate	2010
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v112_n2_p283_DiGiacomo http://hdl.handle.net/20.500.12110/paper_00105422_v112_n2_p283_DiGiacomo
work_keys_str_mv	AT digiacomoadriansantiago useandimportanceofcropandfieldmarginhabitatsforbirdsinaneotropicalagriculturalecosystem AT lopezdecasenavejaviernestor useandimportanceofcropandfieldmarginhabitatsforbirdsinaneotropicalagriculturalecosystem
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Use and importance of crop and field-margin habitats for birds in a Neotropical agricultural ecosystem

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