Joint Nature Conservation Committee
Statistics comprise population trends for 10 of the UKs 17 breeding bat species, based on National Bat Monitoring Programme (NBMP) data. The NBMP relies on hundreds of volunteer bat surveyors. Population trends are generally provided at GB level, but for one species (Daubentons bat) there are sufficient data from NI to enable trend analysis at UK level. Trends are also broken down to country level where possible. Data contribute to UK and England Biodiversity indicators, and are important for reporting on and implementation of country biodiversity strategies, and the report to EUROBATS.