Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming

Autores
Sica, Yanina Vanesa; Gavier Pizarro, Gregorio Ignacio; Pidgeon, Anna Michle; Travaini, Alejandro; Bustamante, Javier; Radeloff, Volker C.; Quintana, Rubén D.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Human activities have modified wetlands all over the word. Water control structures that are frequently implemented in these ecosystems to keep lands free of flooding can decrease or degrade habitat for biodiversity. The Paraná River Delta, one of the largest wetlands in Argentina, has recently experienced rapid cattle grazing intensification facilitated by water control structures, resulting in extensive conversion of wetlands to pastures. It is unclear if this loss of wetlands has had a negative impact on the highly diverse bird community. Here, we evaluated the changes in bird assemblages in the Lower Delta of Paraná River after 14 years of cattle grazing intensification. We compared point count data from 1997 to 1999 with data collected in 2012 and 2013 using the same survey methods. We assessed the temporal changes in bird richness and composition using paired permutation tests and multivariate analysis. We related the bird composition to landscape changes to analyse if avian changes were associated with landscape dynamics. We found that after 14 years, the bird community differed greatly. In general, species richness decreased, especially in wet years. We found fewer wetland species in recent surveys; in particular we did not register saffron‐cowled blackbird (Xanthopsar flavus), a species listed as globally vulnerable. Changes in bird composition were associated with an increase in bare soil due to land‐use changes. Even though inter‐annual differences in precipitation and river stage have great effects on the species present in the surveys, the absence of many wetland species in recent wet years, that is when habitat is suitable for them, is most likely due to changes in land cover. Globally, agricultural land use makes inroads into many wetlands, eroding their quality and extent. Maintenance of wetland species requires that conservation efforts focus on these vulnerable ecosystems before full‐scale land conversion occurs.
Instituto de Recursos Biológicos
Fil: Sica, Yanina Vanesa. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Gavier Pizarro, Gregorio Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina
Fil: Pidgeon, Anna M. University of Wisconsin‐Madison. Department of Forest and Wildlife Ecology. SILVIS Lab; Estados Unidos
Fil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina.
Fil: Bustamante, Javier. CSIC. Estación Biológica de Doñana. Department of Wetland Ecology; España
Fil: Radeloff, Volker C. University of Wisconsin‐Madison. Department of Forest and Wildlife Ecology. SILVIS Lab; Estados Unidos
Fil: Quintana, Rubén D. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina
Fuente
Austral Ecology Online Version (May 2018)
Materia
Tierras Húmedas
Ecosistema
Pájaros
Ganado Bovino
Sistemas de Explotación
Wetlands
Ecosystems
Birds
Cattle
Farming Systems
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/2971

id INTADig_a53a11cd5235019756cabccd35d92dbf
oai_identifier_str oai:localhost:20.500.12123/2971
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farmingSica, Yanina VanesaGavier Pizarro, Gregorio IgnacioPidgeon, Anna MichleTravaini, AlejandroBustamante, JavierRadeloff, Volker C.Quintana, Rubén D.Tierras HúmedasEcosistemaPájarosGanado BovinoSistemas de ExplotaciónWetlandsEcosystemsBirdsCattleFarming SystemsHuman activities have modified wetlands all over the word. Water control structures that are frequently implemented in these ecosystems to keep lands free of flooding can decrease or degrade habitat for biodiversity. The Paraná River Delta, one of the largest wetlands in Argentina, has recently experienced rapid cattle grazing intensification facilitated by water control structures, resulting in extensive conversion of wetlands to pastures. It is unclear if this loss of wetlands has had a negative impact on the highly diverse bird community. Here, we evaluated the changes in bird assemblages in the Lower Delta of Paraná River after 14 years of cattle grazing intensification. We compared point count data from 1997 to 1999 with data collected in 2012 and 2013 using the same survey methods. We assessed the temporal changes in bird richness and composition using paired permutation tests and multivariate analysis. We related the bird composition to landscape changes to analyse if avian changes were associated with landscape dynamics. We found that after 14 years, the bird community differed greatly. In general, species richness decreased, especially in wet years. We found fewer wetland species in recent surveys; in particular we did not register saffron‐cowled blackbird (Xanthopsar flavus), a species listed as globally vulnerable. Changes in bird composition were associated with an increase in bare soil due to land‐use changes. Even though inter‐annual differences in precipitation and river stage have great effects on the species present in the surveys, the absence of many wetland species in recent wet years, that is when habitat is suitable for them, is most likely due to changes in land cover. Globally, agricultural land use makes inroads into many wetlands, eroding their quality and extent. Maintenance of wetland species requires that conservation efforts focus on these vulnerable ecosystems before full‐scale land conversion occurs.Instituto de Recursos BiológicosFil: Sica, Yanina Vanesa. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Gavier Pizarro, Gregorio Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; ArgentinaFil: Pidgeon, Anna M. University of Wisconsin‐Madison. Department of Forest and Wildlife Ecology. SILVIS Lab; Estados UnidosFil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina.Fil: Bustamante, Javier. CSIC. Estación Biológica de Doñana. Department of Wetland Ecology; EspañaFil: Radeloff, Volker C. University of Wisconsin‐Madison. Department of Forest and Wildlife Ecology. SILVIS Lab; Estados UnidosFil: Quintana, Rubén D. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina2018-08-03T14:17:33Z2018-08-03T14:17:33Z2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/2971https://onlinelibrary.wiley.com/doi/abs/10.1111/aec.126211442-99851442-9993https://doi.org/10.1111/aec.12621Austral Ecology Online Version (May 2018)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:23Zoai:localhost:20.500.12123/2971instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:23.745INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
title Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
spellingShingle Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
Sica, Yanina Vanesa
Tierras Húmedas
Ecosistema
Pájaros
Ganado Bovino
Sistemas de Explotación
Wetlands
Ecosystems
Birds
Cattle
Farming Systems
title_short Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
title_full Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
title_fullStr Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
title_full_unstemmed Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
title_sort Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
dc.creator.none.fl_str_mv Sica, Yanina Vanesa
Gavier Pizarro, Gregorio Ignacio
Pidgeon, Anna Michle
Travaini, Alejandro
Bustamante, Javier
Radeloff, Volker C.
Quintana, Rubén D.
author Sica, Yanina Vanesa
author_facet Sica, Yanina Vanesa
Gavier Pizarro, Gregorio Ignacio
Pidgeon, Anna Michle
Travaini, Alejandro
Bustamante, Javier
Radeloff, Volker C.
Quintana, Rubén D.
author_role author
author2 Gavier Pizarro, Gregorio Ignacio
Pidgeon, Anna Michle
Travaini, Alejandro
Bustamante, Javier
Radeloff, Volker C.
Quintana, Rubén D.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Tierras Húmedas
Ecosistema
Pájaros
Ganado Bovino
Sistemas de Explotación
Wetlands
Ecosystems
Birds
Cattle
Farming Systems
topic Tierras Húmedas
Ecosistema
Pájaros
Ganado Bovino
Sistemas de Explotación
Wetlands
Ecosystems
Birds
Cattle
Farming Systems
dc.description.none.fl_txt_mv Human activities have modified wetlands all over the word. Water control structures that are frequently implemented in these ecosystems to keep lands free of flooding can decrease or degrade habitat for biodiversity. The Paraná River Delta, one of the largest wetlands in Argentina, has recently experienced rapid cattle grazing intensification facilitated by water control structures, resulting in extensive conversion of wetlands to pastures. It is unclear if this loss of wetlands has had a negative impact on the highly diverse bird community. Here, we evaluated the changes in bird assemblages in the Lower Delta of Paraná River after 14 years of cattle grazing intensification. We compared point count data from 1997 to 1999 with data collected in 2012 and 2013 using the same survey methods. We assessed the temporal changes in bird richness and composition using paired permutation tests and multivariate analysis. We related the bird composition to landscape changes to analyse if avian changes were associated with landscape dynamics. We found that after 14 years, the bird community differed greatly. In general, species richness decreased, especially in wet years. We found fewer wetland species in recent surveys; in particular we did not register saffron‐cowled blackbird (Xanthopsar flavus), a species listed as globally vulnerable. Changes in bird composition were associated with an increase in bare soil due to land‐use changes. Even though inter‐annual differences in precipitation and river stage have great effects on the species present in the surveys, the absence of many wetland species in recent wet years, that is when habitat is suitable for them, is most likely due to changes in land cover. Globally, agricultural land use makes inroads into many wetlands, eroding their quality and extent. Maintenance of wetland species requires that conservation efforts focus on these vulnerable ecosystems before full‐scale land conversion occurs.
Instituto de Recursos Biológicos
Fil: Sica, Yanina Vanesa. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Gavier Pizarro, Gregorio Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina
Fil: Pidgeon, Anna M. University of Wisconsin‐Madison. Department of Forest and Wildlife Ecology. SILVIS Lab; Estados Unidos
Fil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina.
Fil: Bustamante, Javier. CSIC. Estación Biológica de Doñana. Department of Wetland Ecology; España
Fil: Radeloff, Volker C. University of Wisconsin‐Madison. Department of Forest and Wildlife Ecology. SILVIS Lab; Estados Unidos
Fil: Quintana, Rubén D. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina
description Human activities have modified wetlands all over the word. Water control structures that are frequently implemented in these ecosystems to keep lands free of flooding can decrease or degrade habitat for biodiversity. The Paraná River Delta, one of the largest wetlands in Argentina, has recently experienced rapid cattle grazing intensification facilitated by water control structures, resulting in extensive conversion of wetlands to pastures. It is unclear if this loss of wetlands has had a negative impact on the highly diverse bird community. Here, we evaluated the changes in bird assemblages in the Lower Delta of Paraná River after 14 years of cattle grazing intensification. We compared point count data from 1997 to 1999 with data collected in 2012 and 2013 using the same survey methods. We assessed the temporal changes in bird richness and composition using paired permutation tests and multivariate analysis. We related the bird composition to landscape changes to analyse if avian changes were associated with landscape dynamics. We found that after 14 years, the bird community differed greatly. In general, species richness decreased, especially in wet years. We found fewer wetland species in recent surveys; in particular we did not register saffron‐cowled blackbird (Xanthopsar flavus), a species listed as globally vulnerable. Changes in bird composition were associated with an increase in bare soil due to land‐use changes. Even though inter‐annual differences in precipitation and river stage have great effects on the species present in the surveys, the absence of many wetland species in recent wet years, that is when habitat is suitable for them, is most likely due to changes in land cover. Globally, agricultural land use makes inroads into many wetlands, eroding their quality and extent. Maintenance of wetland species requires that conservation efforts focus on these vulnerable ecosystems before full‐scale land conversion occurs.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-03T14:17:33Z
2018-08-03T14:17:33Z
2018-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/2971
https://onlinelibrary.wiley.com/doi/abs/10.1111/aec.12621
1442-9985
1442-9993
https://doi.org/10.1111/aec.12621
url http://hdl.handle.net/20.500.12123/2971
https://onlinelibrary.wiley.com/doi/abs/10.1111/aec.12621
https://doi.org/10.1111/aec.12621
identifier_str_mv 1442-9985
1442-9993
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Austral Ecology Online Version (May 2018)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
_version_ 1844619124713455616
score 12.559606