Providing evidence to improve practice

Individual study: Performance of artificial maternity bat roost structures near Bath, UK

Published source details

Garland L., Wells M. & Markham S. (2017) Performance of artificial maternity bat roost structures near Bath, UK. Conservation Evidence, 14, 44-51

Summary

Surveys were undertaken in 2010 to assess the potential impacts on maternity roosts of brown long-eared bat Plecotus auritus and common pipistrelle bat Pipistrellus pipistrellus before the demolition and redevelopment of a converted farm house and associated outbuildings in the Cotswolds Hills near Bath, UK. As all bat species and their roosts are afforded statutory protection in the UK, a licence was required before the buildings could be demolished. This licence required the construction of two new purpose-designed bat structures in compensation, with the specific goal being the re-establishment of the displaced maternity colonies. Separate bat house and bat wall structures were completed by early spring 2011 with the primary purpose of attracting void-dwelling brown long-eared and crevice-dwelling common pipistrelle bats respectively. Roosting brown long-eared bats established in the Bat House from late 2012, with observed numbers peaking at 20-25 in summer 2013, indicating that a maternity colony had probably re-established. Although a common pipistrelle maternity roost had not established by 2017, small numbers of common pipistrelles were using features within both the bat house and bat wall.