The den’s disturbance by different human activities leads each year to drastic decreasing of the cub surviving rate, due female’s abandon. Often the 1-3 months old cubs are abandoned by the females, these being scared by wood harvester machines, in the neighborhood of the nourish den. The actual protected areas don’t cover entirely the hibernation areas and the forestry management can not restrict an area unless it is a proved hibernation site. Based on the Governmental Order no. 57/2007 it can be forbidden and approbate any human activity in areas with identified bear hibernation dens. The den’s identification and the informing of the forest’s administrators regarding their existence will insure an efficient protection during the born and nourish period of the cubs- January-April.

   The den monitoring during the winter period will provide information about the hibernation duration, influences of the climate and meteorological changes, favorability indicators for the placement, etc.
   In order to evaluate the differences between some external factors, at CRCM Lepsa will be placed an automatic meteorological station. This will register the humidity, temperature, wind direction and intensity, atmosphere pressure at every 5 minutes. The comparing of the external data with the data obtained from the dens will permit identifying the “threshold” values type which determines different behavior changes of females during the winter period.