Behaviour and reproduction:

It has only one offspring per year and tries its first flights with three weeks of age. The average life span is 4 years and a half, however the maximum age registered is 30 years.  The feeding area of females can reach up to a 10km radius from the day roosts, with an average of 2.3km; while males hunt at greater distances, at an average of 3.6km.

Feeding:
It feeds on insects. 

The Daubenton's bat is strongly associated to water habitats, like lakes, dams or waterlines. It generally prefers calm water areas, where it hunts resting or flying insects close to the water (at a 5 to 40cm height). It may also hunt in forested areas. It takes shelter in tree holes and rock cracks during the mating season. 

This species has a wide distribution, from Portugal until the Far East. In Portugal it is found in all the continental part, being apparently more abundant in the Southern regions. 

The preservation of good fresh water habitats is the most important action regarding the conservation of the Daubenton's bat. It has the conservation status of ‘least concern’ in the Portuguese Red List.