BfN Schriften 621 - Monitoring of the hazel dormouse under the EU Habitats Directive in member states around the Baltic Sea
The listing in Annex IV requires a regular monitoring of the species (§ 11) and regular reports to the European Commission (EU-COM) every six years (§ 17). Four parameters need to be reported to the EU-COM: range, population, habitat of the species and future prospects. The aim of the monitoring is to recognize a declining or bad conservation status. This shall enable member states to take measures in time to keep or restore a favourable conservation status.