Action

Action Synopsis: Bat Conservation About Actions

Remove livestock modifications from water troughs

How is the evidence assessed?
  • Effectiveness
    60%
  • Certainty
    30%
  • Harms
    0%

Source countries

Key messages

  • One study evaluated the effects of removing livestock modifications from water troughs on bat populations. The study was in the USA.

COMMUNITY RESPONSE (0 STUDIES)

POPULATION RESPONSE (0 STUDIES)

BEHAVIOUR (1 STUDY)     

  • Use (1 study): One replicated, paired sites study in the USA found that removing livestock modifications from water troughs resulted in bats drinking from them more frequently.
  • Behaviour change (1 study): One replicated, paired sites study in the USA found that when livestock modifications were removed from water troughs, bats approached troughs fewer times before successfully drinking from them.

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Supporting evidence from individual studies

  1. A replicated, paired sites study in 2004 of four pairs of water troughs in northern Arizona, USA (Tuttle et al. 2006) found that removing livestock modifications from water troughs resulted in bats drinking from them more frequently. More bats reached the water surface at unmodified troughs than modified troughs during both single approaches (unmodified: 71% of bats; modified: 25%) and multiple approaches (unmodified: 97%; modified: 61%). Bats also approached unmodified troughs fewer times before successfully drinking than at modified troughs (unmodified: average 0.3 times; modified: 1.8 times). Three experiments were carried out at a pair of rectangular troughs (surface area 7.5 m2) and one experiment at a pair of circular troughs (surface area 4.7 m2). One trough in each pair had modifications installed with either a 3-strand barbed wire fence across the centre or boards at 100 cm intervals, the other was left unmodified. Troughs were filmed simultaneously for 1–5 nights in May–August 2004. Modifications were then switched to the unmodified trough and filming was repeated.

    Study and other actions tested
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.

 

Where has this evidence come from?

List of journals searched by synopsis

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Bat Conservation

This Action forms part of the Action Synopsis:

Bat Conservation

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

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