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Providing evidence to improve practice

Action: Exclude bats from roosts during building work Bat Conservation

Key messages

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  • One study evaluated the effects of excluding bats from roosts during building work on bat populations. The study was in the UK.

COMMUNITY RESPONSE (0 STUDIES)

POPULATION RESPONSE (0 STUDIES)

USAGE (1 STUDY)                                                 

  • Behaviour change (1 study): One replicated, before-and-after study in the UK found that excluding bats from roosts within buildings did not change roost switching frequency, core foraging areas or foraging preferences of soprano pipistrelle colonies.

Supporting evidence from individual studies

1 

A replicated, before-and-after study in 2012–2013 of five buildings across England, UK (Stone et al 2015) found that excluding bats from roosts within buildings resulted in no difference in roost switching frequency, core foraging areas or foraging preferences of soprano pipistrelle Pipistrellus pygmaeus colonies. All five bat colonies established in alternative roosts within three days of exclusion in other buildings within 1.5 km of the original roost. Bats switched roosts at a similar frequency before (average every 2.1 days) and after exclusion (average 2 days). Bats also foraged in similar sized core areas (before: average 44 ha; after: average 47 ha), travelled similar distances to foraging sites (before: average 1.5 km, after: average 1.5 km), and had the same foraging habitat preferences (data reported as statistical model results) before and after exclusion. Exclusion experiments were carried out in the spring of 2012 and 2013. Temporary one-way exclusion measures were installed at roost exits. The five sites had 150–300 bats present before exclusion, and four sites were known maternity roosts. Bats were radiotracked for up to four hours after sunset for 4–7 days before and after exclusion.

Referenced papers

Please cite as:

Berthinussen, A., Richardson O.C. and Altringham J.D. (2019) Bat Conservation. Pages 67-140 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2019. Open Book Publishers, Cambridge, UK.