Consultez les articles du Bulletin Aves !
Aves, 39/3-4 | 2002 | 159-178
Study of the diet and food-selectivity of the Great Cormorant (Phalacrocorax carbo sinensis) wintering in belgian high-Meuse.
Evrard, G., Tarbe, A.L.
The settlement of a new wintering population of Great Cormorant along the river Meuse brought about some anxiety in angler community. Consequently, we have decided to study diet and selectivity of the predator fish consumption of fish by pellets analysis. Proportions of fish species, in number and biomass, were determined. During wintering periods, four species (Roach, Gudgeon, Perch and Ruffe) were mainly consumed. Size of prey range between 50 and 200 mm (for 90%). The diet seems to be stable between the two studied periods, and intra-annual variations occur for Perch in winter 2002/03. A positive selectivity was proved for Ruffe, Perch and Gudgeon, whereas Breams and Chub were avoided. Roach and Eel were consumed as the same proportion than in the river Meuse. None selectivity appears for size classes caught. The preferences are probably due to the adaptation of birds to morphological shape, habitat use and behaviour of fish species living in the river during winter.
Articles on the same species
Grand Cormoran Consultez la fiche de l'espèce
Results of the winter waterbirds censuses in Wallonia and Brussels area (Belgium) in 2015-2016 ()
Jean-Paul Jacob, Marie Vanschepdael, Jean-Yves Paquet et les responsables régionaux - Aves, 53/3 | 2016
Breeding birds in Wallonia in 2015 ()
Jean-Paul Jacob et les contributeurs-espèces - Aves, 53/1 | 2016
Results of the winter waterbirds censuses in Wallonia and Brussels area (Belgium) in 2012-2013, 2013-2014 and 2014-2015 ()
Jean-Paul Jacob, Marie-Charlotte Alvarez et les responsables régionaux - Aves, 53/1 | 2016
Phenology and intensity of diurnal postnuptial migration in the North Eastern Ardennes by migration monitoring (Ramecroix 2006-2010) ()
Arnaud Beckers & André Baron - Aves, 51/2 | 2014
Status of Yellow-legged Gull Larus michahellis, Herring Gull L. argentatus and Caspian Gull L. cachinnans in the Entre-Sambre-et-Meuse Region ()
Philippe Deflorenne - Aves, 51/1 | 2014
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Articles published in the same bulletin
Habitat modeling: a tool for forest ecology management. A case study of Lesser Spotted Woodpecker (Dendrocopos minor) in belgian Ardenne.
Delahaye, L., Derouaux, A., Delvingt, W.
Development of the wintering of Great Cormorant (Phalacrocorax carbo) in Walloon Region and Brussels (Southern Belgium) between 1990 and 2003.
Paquet, J.-Y. et la Centrale Ornithologique Aves
A standardised method for the census of Littel Owl (Athene noctua).
Van Nieuwenhuyse, D., Belis, W., Bodson, S.
Habitat choice in the Common Crossbill (Loxia curvirostra) following the 2002 invasion : an example in the bois du Hatrai at Sart-lez-Spa.
Monk parakeet (Myiopsitta monacha) nest on a construction crane in Brussels.
A breeding case of the Eurasian Wigeon in Wallonia.