This study is summarised as evidence for the following.

Action Category

Use organic farming instead of conventional farming

Action Link
Bat Conservation
  1. Use organic farming instead of conventional farming

    A replicated, paired sites study in 2000–2002 on 24 pairs of farms in southern England and Wales, UK (Wickramasinghe et al 2003) found that water habitats on organic farms had higher activity for two of 11 bat species than on conventional farms, but bat activity did not differ in pasture, arable or woodland habitats, and a similar number of bat species was recorded on both farm types. The activity of Brandt’s bats Myotis brandtii and Bechstein’s bats Myotis bechsteinii was significantly higher over water habitats on organic farms (Brandt’s bat: 66 bat passes; Bechstein’s bat: 7 bat passes) than on conventional farms (Brandt’s bat: 2 bat passes; Bechstein’s bat: 0 bat passes). Bat activity did not differ in pasture, arable or woodland habitats, or for any other bat species, between organic and conventional farms. A similar number of species was recorded on organic (14 species) and conventional farms (11 species). Certified organic farms (established 1–2 years) were paired with nearby conventional farms with similar habitats (pasture, arable, water and woodland), size and type of business. No details are reported about the type or origin of water habitats; water may have originated from outside of the farms. Each of 48 farms was surveyed with bat detectors rotated between three random points for an hour and a half from one hour after sunset. Two farms within a pair were sampled on consecutive nights in June–September 2000 or 2002.

Output references
What Works in Conservation

What Works in Conservation

What Works in Conservation assesses the research looking at whether interventions are beneficial or not. It is based on summarised evidence in synopses, on topics such as amphibians, bats, biodiversity in European farmland, and control of freshwater invasive species. More are available and in progress.

More about What Works in Conservation

Download free PDF or purchase
Our Journal: Conservation Evidence

Our Journal:
Conservation Evidence

A unique, free to publish open-access journal publishing research and case studies that measure the effects of conservation actions.

Read latest volume: Volume 16

Special issues: Amphibian special issue

Go to the Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust