Integrated population model for the Mallard in the Netherlands

, Eelke Jongejans, Chris A. M. Van Turnhout, Loes Van Den Bremer, Henk Van Der Jeugd & Erik Kleyheeg
Europe’s highest densities of breeding Mallards (Anas platyrhynchos) are found in the Netherlands, but the breeding population there has declined by ~30% since the 1990s. The exact cause of this decline has remained unclear. Here, we used an integrated population model to jointly analyze Mallard population survey, nest survey, duckling survival and band-recovery data. We used this approach to holistically estimate all relevant vital rates, including duckling survival rates for years for which no explicit...
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