SciELO - Scientific Electronic Library Online

 
vol.20 número2Dinámica estacional del ensamble de aves de un bosque norpatagónico de lenga (Nothofagus pumilio) y su relación con la disponibilidad de sustratos de alimentaciónAvifauna invernal en ambientes de Chaco y Pantanal en Bahía Negra (norte de Paraguay) 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

GATTO, Alejandro; QUINTANA, Flavio; YORIO, Pablo  y  LISNIZER, Nora. Abundance and diversity of waterbirds in a marine wetland of Golfo San Jorge, Argentina. Hornero [online]. 2005, vol.20, n.2, pp. 141-152. ISSN 1850-4884.

We studied the diversity and abundance of waterbirds using the intertidals and shallow waters of Malaspina inlet, San Jorge Gulf, Chubut, by means of weekly counts during the spring of 2000. We selected seven survey stations along the coastline of the inlet, representing the habitat heterogeneity of the whole wetland. The waterbird assemblage showed a total of 31 species and exhibited high species diversity, with a core of dominant species and several others that showed low abundance. The composition of the assemblage varied throughout the study, mainly due to the decrease in the number of Kelp Gull (Larus dominacus) and the increase in numbers of the migratory White-rumped Sandpiper (Calidris fuscicollis). The northern sector of San Jorge Gulf, including the Malaspina inlet, has been included in a proposal for a new marine protected area. The information obtained in this study will contribute to the development of management guidelines aimed at the conservation of this and other marine wetlands of Patagonia.

Palabras llave : Argentina; Diversity; Intertidal areas; Patagonia; Waterbirds.

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