Since their release in June 2003, Derbyshire’s dormice have been monitored regularly, co-ordinated by the DMG, as part of the National Dormouse Monitoring Scheme. This involves checking the 200 nestboxes installed at the release site for nests or other signs of dormouse activity. Any dormice found in the boxes are weighed, sexed and assessed for breeding condition. All the reintroduced animals were fitted with an implanted microchip containing an identification number and these are read using a hand scanner to follow the progress of individual animals. Monitoring sessions were carried out in September and October 2003 and in June and September 2004, with shorter sampling visits in May and August 2004. On the latest visit, 19th September, six dormice were found including a female with two very small young.
This was the first direct proof of breeding at the release site and is excellent news, although breeding almost certainly occurred in 2003, as indicated by a few animals caught in October that year that lacked an ID number. The site consists of woodland with a dense understorey of brambles, bracken and honeysuckle that provides ample possibilities for nest construction and this probably explains the relatively low proportion of nestboxes being used. Two supplementary monitoring techniques are also used: the presence of hazelnuts opened in a diagnostic way by dormice – these were numerous in 2003 – and small feeding cages, specially designed by the site owner. These are provided with biscuits and apple and subsequent use by dormice is shown by the presence of droppings and other feeding signs.
Dave Mallon
At the GreenWatch awards ceremony on 27th May 2004 the Derbyshire dormouse project won 1st prize. It was a joint award between Dave and Tina Wright (who own the woodland, initiated the project and submitted the application) and the Derbyshire Mammal Group (who, alongside other interested individuals provide ongoing support for the project). As well as a certificate there was also a cash prize and Dave and Tina have very kindly made a donation to DMG funds. Very well done to all those involved with the project and a big thanks to Dave, Tina and family who have been fantastic hosts and for their generous donation.
Steve Docker