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Alopochen aegyptiacus - Egyptian goose

French name:  Ouette d'egypte
Dutch name: Nijlgans
Family: Anatidae
Group: Birds
Origin: Africa
Habitat: freshwater
Introduction:  pets and domestic animals
ISEIA Score : 12
 
Naturalization in Belgium
First observation in the wild: 1984
Invasion stage: spread
Spatial distribution: widespread
Invasiveness
Reproduction in the wild: yes
Dispersion potential: high
Natural habitats: high
More on invasiveness: Found in a diversity of wetlands, usually supplied with a belt of trees or shrubs.
Distribution in Belgium
Established populations
absent from district
isolated populations (1-5 localities per district)
widespread (>5 localities per district)

Impacts on Species
Predation / Herbivory: high
Competition: high
Disease transmission: likely
Genetic effects: low
Impacts on Ecosystems
Nutrient cycling: high
Physical alteration: medium
Natural successions: likely
Food web alteration: likely
More on impacts: The Egyptian goose is in strong expansion over the Belgian territory. During the nesting period, it develops an aggressive behaviour leading to nest usurpation and decrease of offspring number in several bird species, namely herons and raptors (nest usurpation of Falco peregrinus is reported from Belgium). Post breeding flocks are responsible for overgrazing and for the alteration of banks and quality of water bodies. It is considered as an agricultural pest in part of its native geographic range.
Data Source & References
Authors: Anselin Anny, Branquart Etienne, Devos Koen, Paquet Jean-Yves, Strubbe Diederik, Vangeluwe Didier, Weiserbs Anne
Published on:  12 June 2007
Last update:  14 April 2010
References:
Beck, O., Anselin, A. & Kuijken, E. (2002)
Beheer van verwilderde watervogels in Vlaanderen
Rapport van het Instituut voor Natuurbehoud 2002.08. Brussel.
Blair, M.J. et al. (2000)
Review of the status of introduced non-native waterbirds species in agreement area of the African-Eurasian Waterbird Agreement research contract CR0219.
BTO Research Report 229:1-129
Callaghan, D.A. & Kirby, J. (1996)
Releases of Anatidae for hunting and the effects on wetland biodiversity: a review and evaluation.
Game Wildlife 13: 1049-1068.
Curtis, O.E., Hockey, P.A.R. & Koeslag, A. (2007)
Competition with Egyptian Geese Alopochen aegyptiaca overrides environmental factors in determining productivity of Black Sparrowhawks Accipiter melanoleucus.
Ibis 149: 502-508.
Dubois, P.J. (2007)
Les oiseaux allochtones en France : statut et interactions avec les espèces indigènes.
Ornithos 14: 329-364.
Godin J. (2005)
Les espèces animales invasives des milieux aquatiques et humides du bassin Artois-Picardie
Agence de l'Eau Artois-Picardie.
Gyimesi, A. & Lensink, R. (2010)
Risk analysis of the Egyptian Goose in the Netherlands.
Ministry of LNV, Invasive Alien Species Team.
Jacob, J.P. et al. (Eds) (2009)
Atlas des oiseaux nicheurs de Wallonie.
Aves et Centre de Recherche de la Nature, des Forêts et du Bois (MRW, DGRNE), Série "Faune-Flore-Habitats".
Madsen, J., Cracknell, G. & Fox, T. (1999)
Goose populations of the Western Palearctic.
Wetlands International Publication No. 48: 343 pp.
Owen, M., Callaghan, D. & Kirby, J. (2006)
Guidelines on avoidance of introductions of non-native waterbird species.
AEWA Technical Series No.12, Bonn, Germany.
Pieterse, S. & Tamis, W. (2005)
Exoten in de Nederlandse avifauna: integratie of concurrentie?
Het Vogeljaar 53: 3-10.
Rehfish, M.M., Allan, J.R. & Austin, G.E. (2010)
The effect on the environment of Great Britain’s naturalized Greater Canada Branta canadensis and Egyptian Geese Alopochen aegyptiacus.
Proceedings from the BOU's 2008 Autumn Scientific Meeting "The Impacts of Non-native Species".
Vangeluwe, D. & Roggeman, W. (2000)
Evolution, structure et gestion des rassemblements d'Ouettes d'Egypte férales en Région de Bruxelles-Capitale.
Rapport IBGE-BIM.
Vermeersch, G., Anselin, A., Devos, K. , Herremans, M., Stevens, J., Gabriëls, J. & Van der Krieken, B. (2004)
Atlas van de Vlaamse broedvogels 2000-2002.
Mededelingen van het Instituut voor Natuurbehoud 23, Brussel, 495 pp.
Weiserbs, A. & Jacob, J.P. (2007)
Oiseaux nicheurs de Bruxelles 2000-2004: répartition, effectifs, évolution.
Aves, Liège, 292 pp.
del Hoyo, J., Elliot, A. & Sargatal, J. (1992)
Handbook of the birds of the world, vol. 1
Lynx Edicions, Barcelona.

 
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