These lists are getting longer and longer and are of a depressing nature. Blue Lists can be used as indicators for the success of efforts in conservation. Blue Lists can be used to show the decision makers, general public and even conservationists themselves that the effort invested in conservation is worthwhile. Blue Lists can be used as a public relations instrument in lobbying for Nature. They show that about one third of these species can be put on the Blue Lists, i.e. show a durable stabilisation or increase of abundance.
Similar investigations are underway in Bavaria and other regions of Germany.
Blue Data Books - an encouraging new instrument for restoration and conservation. Blaue Listen der erfolgreich erhaltenen oder gef rderten Tier- und Pflanzenarten der Roten Listen. Methodik und Anwendung in der n rdlichen Schweiz. Konzeptes zur Aufstellung von Blauen Listen in Hamburg.