Atlas Survey of the Butterflies of Denmark

This dataset contains the primary occurrence data from a complete atlas survey of the Butterflies of Denmark. The survey was carried out 1989 through 1994 and documents the species’ current and former distributions – based on civil scientist, country-wide, field observations during the survey, registration of collection specimens, and literature sources. The work was coordinated, and data compiled and analysed, by M.Sc. Biol., Ph.D. Michael Stoltze, to produce the bookwork ”Danske dagsommerfugle” (Danish Butterflies, ISBN-10: 8700212768; ISBN-13: 9788700212763). The dataset contains 199307 records, covering a total of 89 species. Med tilladelse fra Atlasprojektet Danmarks Dagsommerfugle / With permission from the Atlas survey of the Butterflies of Denmark.