Official Statistics

Butterflies in the wider countryside UK

Trends in butterflies in the wider countryside in the UK

Documents

Butterflies in the wider countryside: United Kingdom, 1976 to 2016

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Trends in UK Butterflies 1976 to 2016

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Details

These indicators on butterflies in the United Kingdom contribute to a suite of indicators in the UK Biodiversity Indicators. Early data availability allows their release ahead of that publication. Two measures of annual butterfly population abundance are presented: the first for specialist butterflies (species strongly associated with semi-natural habitats such as unimproved grassland) and the second for butterflies found in both semi-natural habitats and the wider countryside. The measures are multi-species indices compiled by Butterfly Conservation (BC), the Centre for Ecology & Hydrology (CEH), and the Joint Nature Conservation Committee (JNCC) from data collated through the UK Butterfly Monitoring Scheme (UK BMS) and the Wider Countryside Butterfly Survey (WCBS).
The indicators use data from butterfly transect sites on farmland and in woodland from the UK BMS and additionally randomly selected farmland plots from the WCBS. Further details of the methods used to compile the indicators and assess change can be found on the UK BMS website. More information about this indicator is available on the JNCC website.

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Published 20 October 2015
Last updated 29 June 2017 + show all updates
  1. Butterfly trend data up to 2016 published
  2. First published.