The barbastelle bat Barbastella barbastellus (Schreber, 1774) is regarded as one of the most endangered bat species in Europe.
Maza vakarsiksparna--Nyctalus leisleri Kuhl un Eiropas platausa--Barbastella barbastella Schreber--atradumi Latvija [Records of Leisler's bat Nyctalus leisleri Kuhl and Barbastelle bat Barbastella barbastella Schreber in Latvia].
Echolocation by the barbastelle bat, Barbastella barbastellus.
Long-term changes in the numbers of the barbastelle Barbastella barbastellus in Poland.
Thus far the following eight sedentary bat species have been found hibernating in this vast fortress: Barbastella barbastellus (Schreber, 1774), Eptesicus nilssonii (Keyserling & Blasius, 1839), Eptesicus serotinus (Schreber, 1774), Myotis brandtii (Eversmann, 1845), Myotis dasycneme (Boie, 1825), Myotis daubentonii (Kohl, 1817), Myotis nattereri (Kohl, 1817), and Plecotus auritus (Linnaeus, 1758) (Masing & Busa, 1983; Masing, 1984b; Pauza & Pauziene, 1996).
nattereri had increased significantly while the numbers of Plecotus auritus and Barbastella barbastellus had decreased remarkably (Table 2).
However, it can be assumed that differences in the severity of winter can influence the numbers of some species like Plecotus auritus and Barbastella barbastellus, because in relatively warm winters those species can probably find suitable hibernation sites in aboveground roosts.
In some species (Myotis dasycneme, Plecotus auritus, and Barbastella barbastellus) a significant decrease had occurred between the two periods, 1978-1995 and 2007.