SciELO - Scientific Electronic Library Online

 
vol.22 número1Primer registro de reproducción de la Gaviota Cocinera (Larus dominicanus) en la Bahía Samborombón, provincia de Buenos Aires, ArgentinaEl Chorlo de Espolón (Vanellus cayanus) en Argentina índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Bookmark


El hornero

versión On-line ISSN 1850-4884

Resumen

PETRACCI, Pablo F.; DELHEY, Kaspar  y  SOTELO, Martín. Granivorous habit in Olrog's Gull (Larus atlanticus): implications for its specialist status. Hornero [online]. 2007, vol.22, n.1, pp. 51-54. ISSN 1850-4884.

We report on unknown feeding habits of the Olrog's Gull (Larus atlanticus) in the area of Ingeniero White port, Bahía Blanca, Buenos Aires Province, Argentina. Between 2002 and 2005, 281 individuals were observed feeding on grains along the shoulder of the road and in a parking lot besides the port. Feeding groups were of 2-51 individuals. This behaviour was observed mostly (78%) during high tides, when access to intertidal prey is limited. The exploitation of human resources by Larus atlanticus supports the hypothesis that this species has some degree of trophic plasticity and could behave as a generalist. We briefly review the literature on its diet, proposing an explanation for the different observations obtained along the coast of Argentina.

Palabras llave : Argentina; Bahía Blanca; diet; grains; Larus atlanticus; Olrog's Gull.

        · resumen en Español     · texto en Español     · pdf en Español