Using data of bryophyte mapping projects for nature conservation purposes - a case study from Saxony

The results of a bryophyte mapping project carried out in Saxony between 1980 and 2004 were evaluated in cases of nature conservation. The following questions were analysed: the relation of frequency and threat of species; the threat of species in different biotope types; differences in the ecological characteristics of Red List species in comparison with unthreatened species using the Ellenberg’s indicator values and the hemerobie status; main reasons for decline and threat of Red List species; changes in the classification in the different editions of the Red Lists of Saxony and their reasons, mainly the decline and increase of species; the allocation of distribution centres of threatened bryophytes of selected biotope types.