Irish Dormouse Monitoring Project

Context

We propose to undertake further survey works (10-years after the initial distribution survey) in order to ascertain the current status and distribution of this species in Ireland. Research will also consider the ecology of this species in Ireland and what factors are influencing the apparent successful and rapid colonisation of Co. Kildare and surrounding areas. We will partner with an Irish university to provide additional students and on-going advice for the proposed monitoring programme.

The hazel dormouse Muscardinus avellanarius was first reported from Ireland (Co. Kildare) in 2010. DNA analysis subsequently showed that the animals recorded in Ireland are more closely related to animals from western Europe rather than Britain. It has been speculated that they may have arrived with hay importation from France (during one of the previous winter fodder crises), but this remains to be proven.

Investigations into the range occupied by the dormice was undertaken by researchers from NUI Galway; demonstrated that as of 2014, the dormouse occupied a 30km² area of Co. Kildare around the Newbrige-Nass region. This is a rather remarkable spread, given that the area in which they are located contains two motorways as well as the River Liffey. Conservation manuals often describe dormice as rather sedentary, restricted to ancient (coppiced) woodland and not likely to cross open farmland. While this area is also amongst the most intensively managed in Ireland, with many large open horse farms and arable lands. Clearly there is much still to learn about this species and this new population in Kildare could unlock knowledge that could assist with conservation management measures in parts of its European range where it is in decline.