Use of nestboxes by the common dormouse (Muscardinus avellanarius L.) in Lithuania /

Abstract

Data on the use of nestboxes by Muscardinus avellanarius were gathered in 1971-1996 during all seasons of the year including winter. More than 20000 nestbox checks were made, finding about 5000 dormice. The numbers of dormice and their demographic composition markedly changed as the annual season progressed. The number of dormice in reached the maximum in September: the dormice occupying 30-40% of all nestboxes. There was a positive relationship between the occupancy of nestboxes and density of undergrowth. Dormice preferred nestboxes established at the height of 4m. Preference was also given to wooden nestboxes. The dormice compete with birds, the yellow-necked mouse, fat dormouse and social insects