Rare species: O.U.G. 57/2007 with 2011 additions:Annex 3–Rhinolophus ferrumequinum, Rhinolophus hipposideros, Barbastella barbastellus, Myotis myotis, Myotis blythii, Myotis bechsteini, Miniopterus schreibersi
Decline species (at European level according to IUCN) – Rhinilophus ferrumequinum (NT), Rhinolophus hipposideros (NT), Barbastella barbastellus (VU), Myotis blythii (NT), Myotis bechsteini (VU),
Thriving species: Myotis myotis (LC), Nyctalus noctula (LC). Pipistrellus pipistrellus (LC), Minioptreus schreibersi
Following the three factors category proposed by NatureServe applied on the selected key species we can issue the following conclusions:
1. According to Romanian legislation (O.U.G. 57/2007 with 2011 additions) only 3 of the selected key species are not in need for conservation measures
2. The decline species at European level are also threaten at national and local level, especially due to habitat loss, this species being linked to cavernicole habitats such as: caves, caverns, old hollowed trees
3. The caves located in the NE, E, S, SE part of the quarry wall are used by the bats key species for hibernation and maternity, being therefore extremely important for their conservation, especially the cave “Zidul de Sus”
4. All the species are using the quarry as a feeding ground, due to its characteristics of open space, which helps the bat species in their hunting activities