Bronherkenning voor muskusratten op basis van ruimtelijke genetica: Een genetische kaart voor muskusratten in Noord-Nederland en een casestudie voor het detecteren van migratie in en naar Friesland

After years of intensive eradication, the number of muskrats in The Netherlands has significantly declined in recent years and in parts of the country, such as the Province of Friesland, large rural areas are considered ‘muskrat-free’. This allows a change in management, from a full spatial coverage of trapping activities towards an approach aiming at eradication of remaining populations and prevention of recolonisation. For such an approach it is relevant to study the origins of any individuals that are still being caught, so that catching activities can be targeted at closing off migration routes. This report presents the development of a method and reference dataset for genetic source tracking of muskurats, using the management región Wetterskip Fryslân as a case study.