• The animal is arboreal and nocturnal and can leap up to two metres.

The little swamp mouse inhabits an altitude from 100 m to 500 m above sea level, preferring Mediterranean forest with a summer dry and hot and a winter warm and rainy. The species is found in various landscapes, including land, terrestrial forests, terrestrial herbaceous areas and shrubs. In terms of climatic conditions, the little swamp mouse is adapted to cold steppe with dryness, a cold winter, an abundance of grass and a small number of trees, as well as to a very dry climate, a cold and almost dry climate, a summer with almost no rain and a hot climate with almost complete absence of precipitation.