Action Synopsis: Bat Conservation About Actions

Restore or create grassland

How is the evidence assessed?

Study locations

Key messages

  • One study evaluated the effects of creating grassland on bat populations. The study was in the UK.



  • Abundance (1 study): One replicated, paired sites study in the UK found that pipistrelle activity (relative abundance) did not differ between species-rich grassland created on agri-environment scheme farms and improved pasture or crop fields on conventional farms.


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 2008 on 16 pairs of farms in Scotland, UK (Fuentes-Montemayor et al 2011) found that grassland created on agri-environment scheme farms had similar activity of Pipistrellus species as improved pasture or crop fields on conventional farms. The activity of common pipistrelles Pipistrellus pipistrellus and soprano pipistrelles Pipistrellus pygmaeus was similar over species-rich grassland on agri-environment farms and improved pasture or crop fields on conventional farms (data reported as statistical model results). On agri-environment scheme farms, pasture or crop fields had been converted to grassland by sowing with a low productivity grass and herb mix and restricting fertiliser, pesticides, mowing and grazing. Each of 16 species-rich grasslands on agri-environment scheme farms were paired with 16 pastures or crop fields on conventional farms with similar farming activities and surrounding habitats. Each of 16 pairs of farms was sampled once on the same night in June–September 2008. At each of 32 sites, bat activity was recorded continuously from 45 minutes after sunset using bat detectors along transects 2.5–3.7 km in length.

    Study and other actions tested
Please cite as:

Berthinussen, A., Richardson O.C. and Altringham J.D. (2021) Bat Conservation: Global Evidence for the Effects of Interventions. Conservation Evidence Series Synopses. University of Cambridge, Cambridge, UK.


Where has this evidence come from?

List of journals searched by synopsis

All the journals searched for all synopses

Bat Conservation

This Action forms part of the Action Synopsis:

Bat Conservation
What Works 2021 cover

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, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 21

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape ProgrammeRed List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Mauritian Wildlife Supporting Conservation Leaders
Sustainability Dashboard National Biodiversity Network Frog Life The international journey of Conservation - Oryx Cool Farm Alliance UNEP AWFA Bat Conservation InternationalPeople trust for endangered species Vincet Wildlife Trust