Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering grounds

The diet of the South American Tern (Sterna hirundinacea) and its seasonal variation during the 2005 and 2006 non-reproductive seasons in the Uruguayan Atlantic coast was analyzed. Diet was assessed by the analysis of pellets collected in the Rocha lagoon sandbar, a major tern roosting area in Urugu...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	ALFARO,MATILDE, MAUCO,LAURA, NORBIS,WALTER, LIMA,MAURICIO
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2011
Materias:	feeding ecology migration temporal variation terns Uruguay
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000300011
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0716-078X2011000300011
record_format	dspace
spelling	oai:scielo:S0716-078X20110003000112011-12-26Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering groundsALFARO,MATILDEMAUCO,LAURANORBIS,WALTERLIMA,MAURICIO feeding ecology migration temporal variation terns Uruguay The diet of the South American Tern (Sterna hirundinacea) and its seasonal variation during the 2005 and 2006 non-reproductive seasons in the Uruguayan Atlantic coast was analyzed. Diet was assessed by the analysis of pellets collected in the Rocha lagoon sandbar, a major tern roosting area in Uruguay, aiming to analyze the hypothesis that terns feed mainly on the Argentine Anchovy (Engraulis anchoita) during the wintering period. A total of 844 pellets were collected, 442 in 2005 and 402 in 2006. Diet was composed of fish (88 %), insects (9 %) and crustaceans (3 %). The main fish species consumed was the Argentine Anchovy (77.7 %), followed by Marini's Anchovy (Anchoa marinii) (7.9 %) and the Striped Weakfish (Cynoscion guatucupa) (3.6 %). Insects and crustaceans were the main items in two of the groups of pellets collected during the study period. Despite this temporal variation in the diet, the Argentine Anchovy was the main prey item consumed during both seasons. These results support the hypothesis that South American Terns strongly depend on anchovies as trophic resource.info:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.84 n.3 20112011-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000300011en10.4067/S0716-078X2011000300011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	feeding ecology migration temporal variation terns Uruguay
spellingShingle	feeding ecology migration temporal variation terns Uruguay ALFARO,MATILDE MAUCO,LAURA NORBIS,WALTER LIMA,MAURICIO Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering grounds
description	The diet of the South American Tern (Sterna hirundinacea) and its seasonal variation during the 2005 and 2006 non-reproductive seasons in the Uruguayan Atlantic coast was analyzed. Diet was assessed by the analysis of pellets collected in the Rocha lagoon sandbar, a major tern roosting area in Uruguay, aiming to analyze the hypothesis that terns feed mainly on the Argentine Anchovy (Engraulis anchoita) during the wintering period. A total of 844 pellets were collected, 442 in 2005 and 402 in 2006. Diet was composed of fish (88 %), insects (9 %) and crustaceans (3 %). The main fish species consumed was the Argentine Anchovy (77.7 %), followed by Marini's Anchovy (Anchoa marinii) (7.9 %) and the Striped Weakfish (Cynoscion guatucupa) (3.6 %). Insects and crustaceans were the main items in two of the groups of pellets collected during the study period. Despite this temporal variation in the diet, the Argentine Anchovy was the main prey item consumed during both seasons. These results support the hypothesis that South American Terns strongly depend on anchovies as trophic resource.
author	ALFARO,MATILDE MAUCO,LAURA NORBIS,WALTER LIMA,MAURICIO
author_facet	ALFARO,MATILDE MAUCO,LAURA NORBIS,WALTER LIMA,MAURICIO
author_sort	ALFARO,MATILDE
title	Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering grounds
title_short	Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering grounds
title_full	Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering grounds
title_fullStr	Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering grounds
title_full_unstemmed	Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering grounds
title_sort	temporal variation on the diet of the south american tern (sterna hirundinacea, charadriiformes: laridae) on its wintering grounds
publisher	Sociedad de Biología de Chile
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000300011
work_keys_str_mv	AT alfaromatilde temporalvariationonthedietofthesouthamericanternsternahirundinaceacharadriiformeslaridaeonitswinteringgrounds AT maucolaura temporalvariationonthedietofthesouthamericanternsternahirundinaceacharadriiformeslaridaeonitswinteringgrounds AT norbiswalter temporalvariationonthedietofthesouthamericanternsternahirundinaceacharadriiformeslaridaeonitswinteringgrounds AT limamauricio temporalvariationonthedietofthesouthamericanternsternahirundinaceacharadriiformeslaridaeonitswinteringgrounds
_version_	1718439657303179264

Temporal variation on the diet of the South American Tern (Sterna hirundinacea, Charadriiformes: Laridae) on its wintering grounds

Ejemplares similares