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	Provedor de dados RChHN (1) Autor MARTÍNEZ DEL RÍO,CARLOS (1) SABAT,PABLO (1) Palavra-chave Cinclodes (1) Isotopes (1) Osmoregulation (1) Renal function (1) Seasonal changes (1) Tipo do documento Journal article (1) Ano 2005 (1) País Chile (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Seasonal changes in the use of marine food resources by Cinclodes nigrofumosus (furnariidae, aves): carbon isotopes and osmoregulatory physiology RChHN SABAT,PABLO; MARTÍNEZ DEL RÍO,CARLOS. Passerines lack functional salt glands and to a large extent avoid feeding on marine invertebrates. An exception is Cinclodes nigrofumosus. Previous studies reported that the contents of its gastrointestinal tract had a lower osmolality than seawater suggesting that birds were supplementing their marine invertebrate diet with terrestrial invertebrates and fresh water at certain periods of the year. We report seasonal changes in the diet of C. nigrofumosus at two contrasting coastal localities in Central Chile and document the potential correlation between weather and feeding habits with osmoregulatory features in this species. We expected that C. nigrofumosus would increase its use of osmotically challenging marine dietary sources when fresh water is... Tipo: Journal article Palavras-chave: Cinclodes; Isotopes; Renal function; Osmoregulation; Seasonal changes. Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200009 Registros recuperados: 1 Primeira ... 1 ... Última

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