Waterbird occurrence and abundance in the Strobel Plateau, Patagonia, Argentina

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The Strobel Plateau is a conspicuous and representative basaltic plateau (“meseta”) in the Patagonian steppe, Argentina. This plateau is dotted with more than 1500 shallow lakes, which are regularly used by waterbirds and support one of the main breeding populations of the near threatened Hooded Gre...

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Autores principales: Lancelotti, Julio L., Pozzi, Luciana M., Márquez, Federico, Yorio, Pablo, Pascual, Miguel A.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Aves Argentinas. Asociación Ornitológica del Plata 2009
Materias:
AVES ACUATICAS
MESETA STROBEL
PODICEPS GALLARDOI
WATERBIRDS
STROBEL PLATEAU
Acceso en línea:https://hdl.handle.net/20.500.12110/hornero_v024_n01_p013
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id hornero:hornero_v024_n01_p013
record_format dspace
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic AVES ACUATICAS
MESETA STROBEL
PODICEPS GALLARDOI
WATERBIRDS
STROBEL PLATEAU
PODICEPS GALLARDOI
spellingShingle AVES ACUATICAS
MESETA STROBEL
PODICEPS GALLARDOI
WATERBIRDS
STROBEL PLATEAU
PODICEPS GALLARDOI
Lancelotti, Julio L.
Pozzi, Luciana M.
Márquez, Federico
Yorio, Pablo
Pascual, Miguel A.
Waterbird occurrence and abundance in the Strobel Plateau, Patagonia, Argentina
topic_facet AVES ACUATICAS
MESETA STROBEL
PODICEPS GALLARDOI
WATERBIRDS
STROBEL PLATEAU
PODICEPS GALLARDOI
description The Strobel Plateau is a conspicuous and representative basaltic plateau (“meseta”) in the Patagonian steppe, Argentina. This plateau is dotted with more than 1500 shallow lakes, which are regularly used by waterbirds and support one of the main breeding populations of the near threatened Hooded Grebe (Podiceps gallardoi). We collected data on bird presence and abundance in 41 shallow lakes, covering a wide spectrum of the wetland environmental variability found in the area. We conducted six surveys from spring to fall between 2004 and 2006. We recorded a total of 18 waterbird species, which represent 5 different families. Anatidae was the family most represented with 12 species, accounting for 85% of the observed waterbirds. Waterbird distribution among lakes was variable, from 2.4% occupied lakes for Wilson’s Phalarope (Steganopus tricolor) and Andean Ruddy-Duck (Oxyura jamaicensis) to 80% for Black-necked Swan (Cygnus melanocorypha), and abundance varied greatly both between species and seasons. The Hooded Grebe, in particular, was recorded in 14 lakes (1–81 individuals). Six species were detected breeding in the area: Hooded Grebe, Silvery Grebe (Podiceps occipitalis), Flying Steamer-Duck (Tachyeres patachonicus), Crested Duck (Anas specularioides), Upland Goose (Chloephaga picta), and White-winged Coot (Fulica leucoptera). The Hooded Grebe nested at four lakes, three of them not previously known to hold breeding birds. Results point to the need of further studies on the dynamic nature of waterbird lake use to adequately assess the importance of the Strobel Plateau as waterbird habitat.
format Artículo
Artículo
publishedVersion
author Lancelotti, Julio L.
Pozzi, Luciana M.
Márquez, Federico
Yorio, Pablo
Pascual, Miguel A.
author_facet Lancelotti, Julio L.
Pozzi, Luciana M.
Márquez, Federico
Yorio, Pablo
Pascual, Miguel A.
author_sort Lancelotti, Julio L.
title Waterbird occurrence and abundance in the Strobel Plateau, Patagonia, Argentina
title_short Waterbird occurrence and abundance in the Strobel Plateau, Patagonia, Argentina
title_full Waterbird occurrence and abundance in the Strobel Plateau, Patagonia, Argentina
title_fullStr Waterbird occurrence and abundance in the Strobel Plateau, Patagonia, Argentina
title_full_unstemmed Waterbird occurrence and abundance in the Strobel Plateau, Patagonia, Argentina
title_sort waterbird occurrence and abundance in the strobel plateau, patagonia, argentina
publisher Aves Argentinas. Asociación Ornitológica del Plata
publishDate 2009
url https://hdl.handle.net/20.500.12110/hornero_v024_n01_p013
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spelling hornero:hornero_v024_n01_p0132023-09-08T19:06:20Z Waterbird occurrence and abundance in the Strobel Plateau, Patagonia, Argentina Presencia y abundancia de aves acuáticas en la meseta Strobel, Patagonia, Argentina Hornero (en línea) 2009;01(024):013-020 Lancelotti, Julio L. Pozzi, Luciana M. Márquez, Federico Yorio, Pablo Pascual, Miguel A. AVES ACUATICAS MESETA STROBEL PODICEPS GALLARDOI WATERBIRDS STROBEL PLATEAU PODICEPS GALLARDOI The Strobel Plateau is a conspicuous and representative basaltic plateau (“meseta”) in the Patagonian steppe, Argentina. This plateau is dotted with more than 1500 shallow lakes, which are regularly used by waterbirds and support one of the main breeding populations of the near threatened Hooded Grebe (Podiceps gallardoi). We collected data on bird presence and abundance in 41 shallow lakes, covering a wide spectrum of the wetland environmental variability found in the area. We conducted six surveys from spring to fall between 2004 and 2006. We recorded a total of 18 waterbird species, which represent 5 different families. Anatidae was the family most represented with 12 species, accounting for 85% of the observed waterbirds. Waterbird distribution among lakes was variable, from 2.4% occupied lakes for Wilson’s Phalarope (Steganopus tricolor) and Andean Ruddy-Duck (Oxyura jamaicensis) to 80% for Black-necked Swan (Cygnus melanocorypha), and abundance varied greatly both between species and seasons. The Hooded Grebe, in particular, was recorded in 14 lakes (1–81 individuals). Six species were detected breeding in the area: Hooded Grebe, Silvery Grebe (Podiceps occipitalis), Flying Steamer-Duck (Tachyeres patachonicus), Crested Duck (Anas specularioides), Upland Goose (Chloephaga picta), and White-winged Coot (Fulica leucoptera). The Hooded Grebe nested at four lakes, three of them not previously known to hold breeding birds. Results point to the need of further studies on the dynamic nature of waterbird lake use to adequately assess the importance of the Strobel Plateau as waterbird habitat. La meseta Strobel, ubicada en la estepa patagónica, alberga más de 1500 lagunas que son utilizadas regularmente por aves acuáticas, incluyendo una de las principales poblaciones reproductivas del Macá Tobiano (Podiceps gallardoi), una especie endémica de la Patagonia austral. Se registró la presencia y abundancia de aves acuáticas en 41 lagunas, cubriendo el amplio espectro de la variabilidad ambiental de la región. Se llevaron a cabo seis campañas de campo desde fines de primavera a principios de otoño en el período 2004–2006. Se registraron un total de 18 especies de aves acuáticas correspondientes a cinco familias. La familia Anatidae fue la más representada con 12 especies, constituyendo el 85% de las aves acuáticas observadas. La distribución de las aves entre las lagunas fue variable, desde un 2.4% de lagunas ocupadas por el Falaropo Común (Steganopus tricolor) y el Pato Zambullidor Grande (Oxyura jamaicensis) hasta un 80% ocupadas por el Cisne Cuello Negro (Cygnus melanocorypha), y la abundancia varió mucho entre especies y estaciones. El Macá Tobiano, en particular, fue observado en 14 lagunas (1–81 individuos). Seis especies fueron detectadas reproduciéndose en la meseta: el Macá Tobiano, el Macá Plateado (Podiceps occipitalis), el Quetro Volador (Tachyeres patachonicus), el Pato Crestón (Anas specularioides), el Cauquén Común (Chloephaga picta) y la Gallareta Chica (Fulica leucoptera). El Macá Tobiano nidificó en cuatro lagunas, tres de las cuales no habían sido reportadas previamente como sitio de reproducción. Los resultados evidencian la necesidad de generar estudios futuros basados en la dinámica de uso de las lagunas para determinar adecuadamente la importancia de la meseta Strobel como hábitat para la avifauna acuática. Aves Argentinas. Asociación Ornitológica del Plata 2009-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar https://hdl.handle.net/20.500.12110/hornero_v024_n01_p013

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