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Title of the project

Inventory of the invasive alien rodent species in the Oise department


The inventory was carried out by the Fédération des chasseurs de l’Oise to find out the location of the populations of coypu (Myocastor coypus), also known as the nutria and muskrat (Ondatra zibethicus) and to make an inventory of the damage caused.

A survey sheet and a technical sheet for the recognition of the two species were provided to potential observers and all partners.


Country France
Level Local
Region Hauts-de-France

Habitat Types



Species Caracteristics Mammals (other than large carnivores)
Species Type Invasive Alien species
Name(s) of main species Coypu (Myocastor coypus), muskrat (Ondatra zibethicus)

Conservation action(s)

Management of habitats and wildlife (e.g. conservation and restoration activities)


Leading partners Fédération départementale des chasseurs de l’Oise