We investigated the distribution and
abundance of the bats from the undergrounds in
Moldavia and Dobrogea. Data was collected
during 2002-2010. There were identified 20
species of bats (3-12 species/cave). In the
undergrounds from Moldova area the dominating
species are Myotis myotis/Myotis oxygnathus
(71,5%), and in Dobrogea, Myotis oxygnathus
(41,1%), Myotis daubentonii (24,1%), and
Miniopterus schreibersii (16,7%).
The most important underground shelter is
the Bats Cave from Rarău Mountains, which
hosts a wintering colony of 3500-3700
individuals of Myotis myotis/Myotis oxygnathus,
and in the warm season shelters 10 species of
bats. We analyzed the microclimate preferences
(for temperature and humidity), during
hibernation, at 15 species of bats. Nowadays,
from the undergrounds studied, only the Bats
Cave from Rarău has an adequate protection and
some populations of bats are seriously threatened
or have disappeared. | 
