Tag: all of Phalacrocorax

ASPECTS OF THE BREEDING BIOLOGY OF THE NEOTROPIC CORMORANT PHALACROCORAX OLIVACEUS AT GOLFO SAN JORGE, ARGENTINA

Neotropic Cormorant (Phalacrocorax brasilianus) Science Article 1 abstract We studied the breeding biology of Neotropic Cormorants Phalacrocorax olivaceus at Golfo San Jorge, Argentina,during 1999. A total of 104 nest platforms with signs of occupation was counted, at 66 (63.5%) of whicheggs were laid. Nests were built on top of medium to large bushes located up […]

Contracaecum rudolphii Hartwich (Nematoda, Anisakidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) in southern Brazil

Neotropic Cormorant (Phalacrocorax brasilianus) Science Article 3 abstract The present report is part of a larger study on the helminth fauna of Neotropical Cormorants,Phalacrocorax brasilianus (Gmelin, 1789) in Brazil, particularly, in the southernmost State of Rio Grande do Sul. Thenematodes which were found loose in the proventriculus/ventriculus or in groups of adults of different ages […]

Primeiro registro de Syncuaria squamata (Linstow) (Nematoda, Acuariidae) embiguas, Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) no Brasil

Neotropic Cormorant (Phalacrocorax brasilianus) Science Article 4 abstract First record of Syncuaria squamata (Linstow) (Nematoda, Acuariidae) in Neotropical cormorants Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) in Brazil. The nematodes of the genus Syncuaria Gilbert, 1927 are parasites of birds of the orders Pelecaniformes, Ciconiiformes, and Podicipediformes. Eleven species are considered valid in this genus, however, two […]

Ecological Functions and Economic Value of the Neotropic Cormorant (Phalacrocorax brasilianus) in Los Olivitos Estuary, Venezuela

Neotropic Cormorant (Phalacrocorax brasilianus) Science Article 2 abstract We determined the ecological function and economic value of a colony of piscivorous Neotropic Cormorants at the Los Olivitos Wildlife Refuge and Fisheries Reserve (WRFR), Lake Maracaibo, Venezuela. Colony size increased from 17,000 to approximately 40,000 in two years. Lake Maracaibo supports one of the most productive […]

Effects of distance to wintering area on arrival date and breeding performance in Great Cormorants Phalacrocorax carbo

Great Cormorant (Phalacrocorax carbo) Science Article 33 abstract Great Cormorants Phalacrocorax carbo sinensis breeding in the same colony often vary markedly in where they winter and in their date of arrival. The main aim of this study was to explore whether date of arrival, fledgling production and lifetime reproductive success were related to the distance […]

Impact of contaminants on the breeding success of the Cormorant Phalacrocorax carbo sinensis in The Netherlands.

Great Cormorant (Phalacrocorax carbo) Science Article 12 abstract In The Netherlands Cormorants reached a minimum number of breeding pairs in the mid-1960s. Since the end of the 1970s the population is increasing again, and many new and rapidly expanding colonies have been settled. However, in a colony in Dordtse Biesbosch, situated in the centre of […]

Diet of great cormorants Phalacrocorax carbosinensis wintering in Malause (South-West France)

Great Cormorant (Phalacrocorax carbo) Science Article 6 abstract The diet of cormorants roosting at Malause on the Garonne River (South-West France) was studied by analyzing pellets collected during the winter 2001- 2002.This roost held a mean of 550 cormorants between October 2001 and March 2002,making it one of the most important winter roosts in France. […]

Cormorants Phalacrocorax carbo sinensis in shallow eutrophic freshwater lakes: Prey choice and fish consumption in the non-breeding period and effects of large-scale fish removal.

Great Cormorant (Phalacrocorax carbo) Science Article 22 abstract During the period October 1989-April 1992 a study on Cormorant feeding ecology was carried out in two shallow lakes in The Netherlands: lake Veluwemeer and lake Wolderwijd (3240 and 2600 ha respectively). Increasing numbers of Cormorants use these lakes for feeding in the non-breeding season; the maximum […]

Where two subspecies meet: Origin, habitat choice and niche segregation of Cormorant Phalacrocorax c. carbo and P. c. sinensis in the common wintering area France, in relation to breeding isolation in Europe.

Great Cormorant (Phalacrocorax carbo) Science Article 24 abstract The wintering population of Cormorants Phalacrocorax carbo in France reached 66000 birds in January 1992 against 14 000 in 1983. This increase largely concerned the inland areas (holding 55% of the population instead of 28% in 1983). The most important area is the Loire Valley. Analysis of […]

Subspecific identity of prehistoric Baltic Cormorants Phalacrocorax carbo.

Great Cormorant (Phalacrocorax carbo) Science Article 30 abstract Cormorants of the subspecies Phalacrocorax carbo sinensis breed in large numbers in the Baltic Sea. They migrate to the Mediterranean region to winter and are then replaced in the Baltic by wintering individuals of the Norwegian population of the nominate subspecies carbo. Cormorants bred in the Baltic […]