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Kuifaalscholvers aan de Atlantische kust van het Iberisch Schiereiland = The status of the European Shag Phalacrocorax aristotelis population on the Atlantic coast of the Iberian peninsula
Velando, A.; Docampo, F.; Alvarez, D. (1999). Kuifaalscholvers aan de Atlantische kust van het Iberisch Schiereiland = The status of the European Shag Phalacrocorax aristotelis population on the Atlantic coast of the Iberian peninsula. Atlant. Seabirds 1(3): 97-106
In: Atlantic Seabirds. Nederlandse Zeevogelgroep/Seabird Group and Dutch Seabird Group: Sandy, Bedfordshire. ISSN 1388-2511, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Velando, A.
  • Docampo, F.
  • Alvarez, D.

Abstract
    A regional analysis of the status of the European Shag Phalacrocorax [Stictocarbo] aristotelis population on the Atlantic coasts of the Iberian Peninsula is presented. This is the first census to be made of this population. The total population was estimated to be approximately 2239 pairs in 1990-94. The first counts from Euskadi and Cantabria are presented, indicating a population of 57-67 pairs in Euskadi in 1994 and 36-41 pairs in Cantabria in 1992. The first census in Asturias dates from 1986 with 98-124 pairs, and the population has increased at an annual rate of 6%, reaching 199-250 pairs in 1997. There are records of partial counts made in Galicia since 1976. The population appears to have stabilised on the Cíes and Ons Islands (Rías Baixas, Pontevedra), where it was increasing at 8-9% annually. The total count of 1462 breeding pairs on Cíes and Ons accounts for 66% of the Atlantic Iberian population. As far as is known, the population in Portugal has stabilised, but there has been no census of the southern colonies since 1983. On the island of Berlenga there were 60 pairs in 1990-94, the number of pairs having changed very little since the first count in 1939.

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