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Abstract:

We studied the distribution of eight species of globally threatened and two near-threatened grassland passerines from Paraguay, northeastern Argentina, and Uruguay and gathered data on their natural history and habitat requirements. The records were obtained during surveys conducted between August 2001 and March 2004. The target species were Cock- and Strange-tailed Tyrants (Alectrurus tricolor, A. risora), Black-and-white Monjita (Xolmis dominicanus), Bearded Tachuri (Polystictus pectoralis), Sharp-tailed Tyrant (Culicivora caudacuta), Ochre-breasted Pipit (Anthus nattereri). Dark-throated Seed-eater (Sporophila ruficollis), Marsh Seedeater (S. palustris), Chestnut Seedeater (S. cinammomea), and Saffron-cowled Blackbird (Xanthopsar flavus). We confirm the previously supposed restricted and fragmented distribution of several species. Most target species occur in natural pastures with light to moderate grazing by livestock, a habitat increasingly scarce in the region. © The Neotropical Orinthological Society.

Registro:

Documento: Artículo
Título:Distributions of threatened grassland passerines of paraguay, argentina and uruguay, with new locality records and notes on their natural history and habitat
Autor:Codesido, M.; Fraga, R.M.
Filiación:Departamento de Ecología, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 4to. piso, Ciudad Autónoma de Buenos Aires (C1428EHA), Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
CICYTTP-CONICET, España y Matteri, (3105) Diamante, Entre Ríos, Argentina
Palabras clave:Argentina; Native grasslands; Paraguay; Threatened passerines; Uruguay
Año:2009
Volumen:20
Número:4
Página de inicio:585
Página de fin:595
Título revista:Ornitologia Neotropical
Título revista abreviado:Ornitol. Neotrop.
ISSN:10754377
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10754377_v20_n4_p585_Codesido

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Citas:

---------- APA ----------
Codesido, M. & Fraga, R.M. (2009) . Distributions of threatened grassland passerines of paraguay, argentina and uruguay, with new locality records and notes on their natural history and habitat. Ornitologia Neotropical, 20(4), 585-595.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10754377_v20_n4_p585_Codesido [ ]
---------- CHICAGO ----------
Codesido, M., Fraga, R.M. "Distributions of threatened grassland passerines of paraguay, argentina and uruguay, with new locality records and notes on their natural history and habitat" . Ornitologia Neotropical 20, no. 4 (2009) : 585-595.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10754377_v20_n4_p585_Codesido [ ]
---------- MLA ----------
Codesido, M., Fraga, R.M. "Distributions of threatened grassland passerines of paraguay, argentina and uruguay, with new locality records and notes on their natural history and habitat" . Ornitologia Neotropical, vol. 20, no. 4, 2009, pp. 585-595.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10754377_v20_n4_p585_Codesido [ ]
---------- VANCOUVER ----------
Codesido, M., Fraga, R.M. Distributions of threatened grassland passerines of paraguay, argentina and uruguay, with new locality records and notes on their natural history and habitat. Ornitol. Neotrop. 2009;20(4):585-595.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10754377_v20_n4_p585_Codesido [ ]