Background Scattered in the Danish countryside, often at the foot of inland cliffs or on the sides of gullies created by the melting ice at the end of the last glacial period, is or should be, a string of moist light-open habitat types. However, inappropriate hydrology, land reduction / fragmentation, and nutrient load have resulted in a direct loss of some of these habitat types. The majority of the remaining habitats are endangered (some places even critically endangered) of the above reasons, and encroachment/inappropriate management, pesticide exposure and invasion of alien species. In addition, due to these endangered habitats, several species connected to them suffer the loss of breeding grounds. Objectives The overall objective of the RigKilde LIFE project is to ensure the favourable conservation status of calcareous fens (7210*), petrifying springs (7220*) and alkaline fens (7230) habitat types, and to increase their size. For the priority habitat type, Calcareous fens, the aim is to increase the cover from 14.0 ha (16.1% of the habitat area in Denmark) to 18.5 ha; For the priority habitat type, petrifying springs, the aim is an increase from 5.7 ha (1.6% of the habitat area in Denmark, of which 3.5 ha or 14.7% of the habitat area is located in the Atlantic biogeographical region) to 12.7 ha; For alkaline fens, the aim is an increase from 196.3 ha (6.6% of the habitat area in Denmark, of which 165.6 ha or 30.6% of the land is located in the Atlantic biogeographical region) to 271.3 ha. The specific objectives for the target species are to: Ensure existing breeding grounds for great crested newt (Triturus cristatus); Improve breeding and foraging conditions for the moor frog (Rana arvalis), in order to increase the number of breeding active adults by 50%; and Maintain the eastern part of the SAC Øvre Mølleådal, Furesø og Frederiksdal Skov as one of the best breeding sites in Denmark for the water beetle (Graphoerus bilineatus) and the dragonfly large white-faced darter (Leucorrhinia pectoralis). Expected results: The expected results of RigKilde LIFE are: Establishment of appropriate hydrology on 1026.2 ha; Invasive species removed on 327.6 ha; Grazing established and/or improved on a total of 743.9 ha; Open water surfaces re-established – 11 amphibians scrapes, 11 ponds and 25 potential habitats for the water beetle; and Ex-situ breeding and introduction of the water beetle to new habitats. The number bred will depend on the result of a feasibility study, which will include an estimation of the number of larvae that can be taken from the donor stocks for breeding.