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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Invasive species: The case of Belgian Psittacidae. Impacts, risks assessment and range of control measures
Auteurs :	Anne Weiserbs, Auteur
Type de document :	Article
Dans :	Aves (47(1) MAR 2010)
Article en page(s) :	21-35
Résumé :	Invasive species raise many questions about their environmental impact. An agreement with regional authorities has been established in 2008 in the context of a need to review the status of populations in Psittacine in the Brussels-Capital Region and to draw the current and potential impacts of these species and the possibility of actions to mitigate those impacts. Three Psittacine have established feral populations in Brussels: Alexandrine Parakeet (Psittacula eupatria), Rose-ringed Parakeet (Psittacula krameri) and Monk Parakeet (Myiopsitta monachus). The impact assessment includes the following: potential for flooding, crop damage, impact on vegetation, competing with native fauna, and transmission of diseases, impact of feeding by the public, impact of the two roosts for the two Psittacula species, and impact of community nests (fall, damage to infrastructure) for the Monk Parakeet. The risk assessment is based on the implementation of two protocols that lead to the same conclusions from a low overall risk for the Monk Parakeet and low to moderate for Alexandrine and Rose-ringed Parakeets. We browse the possibilities of actions from the most gentle to the most severe. The conclusion underlines the need to adapt measures to actual and potential risks.

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