Landbird assemblages in different agricultural landscapes: A case study in the Pampas of central Argentina

A combination of elements (e.g., crops and pasture lands, strips of roadside vegetation, woodlots, temporary wetlands) increases the heterogeneity of rural landscapes. Agricultural landscapes range from homogeneous, dominated by a single element (i.e., pure cropland or pure pastoral farming) to hete...

Descripción completa

Guardado en:
Detalles Bibliográficos
Publicado: 2013
Materias:
Agroecosystem
Grassland bird species
Land use
Matrix
Neotropical region
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v115_n1_p8_Codesido
http://hdl.handle.net/20.500.12110/paper_00105422_v115_n1_p8_Codesido
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00105422_v115_n1_p8_Codesido
record_format dspace
spelling paper:paper_00105422_v115_n1_p8_Codesido2023-06-08T14:34:37Z Landbird assemblages in different agricultural landscapes: A case study in the Pampas of central Argentina Agroecosystem Grassland bird species Land use Matrix Neotropical region A combination of elements (e.g., crops and pasture lands, strips of roadside vegetation, woodlots, temporary wetlands) increases the heterogeneity of rural landscapes. Agricultural landscapes range from homogeneous, dominated by a single element (i.e., pure cropland or pure pastoral farming) to heterogeneous, dominated by two or more elements (i.e., mixed farming). In this study we characterized landbird assemblages in various agricultural landscapes (cropland, pastoral, and mixed landscapes) in the Pampas of central Argentina, surveying along transects to quantify species richness, composition, and abundance. Mixed landscapes were more heterogeneous than pastoral areas and cropland. Species richness, particularly of generalists, was greater in mixed landscapes. Richness of grassland specialists (species of increased conservation concern in the Pampas) was lower in croplands than in pastoral and mixed landscapes. An indicator-species analysis supported the association of some grassland specialists (Rhea americana, Asthenes hudsoni, Embernagra platensis, Pseudoleistes virescens) with pastoral landscapes. Our results suggest that maintaining landscape heterogeneity throughout the Pampas (i.e., mixed landscapes) is important for preserving species richness of birds. But several threatened grassland specialists inhabiting the Pampas, such as Rhea americana and Asthenes hudsoni, are found exclusively in pastoral landscapes, so the long-term survival of these species will depend on the conservation of this landscape type. © The Cooper Ornithological Society 2013. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v115_n1_p8_Codesido http://hdl.handle.net/20.500.12110/paper_00105422_v115_n1_p8_Codesido
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Agroecosystem
Grassland bird species
Land use
Matrix
Neotropical region
spellingShingle Agroecosystem
Grassland bird species
Land use
Matrix
Neotropical region
Landbird assemblages in different agricultural landscapes: A case study in the Pampas of central Argentina
topic_facet Agroecosystem
Grassland bird species
Land use
Matrix
Neotropical region
description A combination of elements (e.g., crops and pasture lands, strips of roadside vegetation, woodlots, temporary wetlands) increases the heterogeneity of rural landscapes. Agricultural landscapes range from homogeneous, dominated by a single element (i.e., pure cropland or pure pastoral farming) to heterogeneous, dominated by two or more elements (i.e., mixed farming). In this study we characterized landbird assemblages in various agricultural landscapes (cropland, pastoral, and mixed landscapes) in the Pampas of central Argentina, surveying along transects to quantify species richness, composition, and abundance. Mixed landscapes were more heterogeneous than pastoral areas and cropland. Species richness, particularly of generalists, was greater in mixed landscapes. Richness of grassland specialists (species of increased conservation concern in the Pampas) was lower in croplands than in pastoral and mixed landscapes. An indicator-species analysis supported the association of some grassland specialists (Rhea americana, Asthenes hudsoni, Embernagra platensis, Pseudoleistes virescens) with pastoral landscapes. Our results suggest that maintaining landscape heterogeneity throughout the Pampas (i.e., mixed landscapes) is important for preserving species richness of birds. But several threatened grassland specialists inhabiting the Pampas, such as Rhea americana and Asthenes hudsoni, are found exclusively in pastoral landscapes, so the long-term survival of these species will depend on the conservation of this landscape type. © The Cooper Ornithological Society 2013.
title Landbird assemblages in different agricultural landscapes: A case study in the Pampas of central Argentina
title_short Landbird assemblages in different agricultural landscapes: A case study in the Pampas of central Argentina
title_full Landbird assemblages in different agricultural landscapes: A case study in the Pampas of central Argentina
title_fullStr Landbird assemblages in different agricultural landscapes: A case study in the Pampas of central Argentina
title_full_unstemmed Landbird assemblages in different agricultural landscapes: A case study in the Pampas of central Argentina
title_sort landbird assemblages in different agricultural landscapes: a case study in the pampas of central argentina
publishDate 2013
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v115_n1_p8_Codesido
http://hdl.handle.net/20.500.12110/paper_00105422_v115_n1_p8_Codesido
_version_ 1768545955326459904

Ejemplares similares