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UK Butterfly Monitoring Scheme (UKBMS)

Dataset homepage

Citation

UK Butterfly Monitoring Scheme (2021). UK Butterfly Monitoring Scheme (UKBMS). Occurrence dataset https://doi.org/10.15468/gmqvmk accessed via GBIF.org on 2023-05-29.

Description

The UK Butterfly Monitoring Scheme (UKBMS) generates butterfly count data that is used to assess trends in the abundance of butterflies within the United Kingdom and for conservation policy and research. This dataset includes records from traditional fixed transect sites, often called 'Pollard Walks'; data from the Wider Countryside Butterfly Survey is excluded and available within a separate dataset – see https://registry.nbnatlas.org/public/show/dr1383 The surveys are undertaken by volunteers and other recorders, who contribute their data free of charge. Where you use the information you must acknowledge the UKBMS using the following attribution statement: Contains UK Butterfly Monitoring Scheme (UKBMS) data © copyright and database right Butterfly Conservation, the Centre for Ecology & Hydrology, British Trust for Ornithology, and the Joint Nature Conservation Committee.

Purpose

As part of a national monitoring programme for butterflies.

Sampling Description

Quality Control

Confidence in the data is good. Automatic rules are used to classify some records as 'assumed correct'; other records are reviewed by expert verifiers.

Method steps

  1. The methodology and development of transect monitoring for butterflies has been reviewed in detail elsewhere (Pollard and Yates, 1993). In brief, a fixed-route walk (transect) is established at a site and butterflies are recorded along the route on a regular (weekly) basis under reasonable weather conditions for a number of years. Transect routes are chosen to sample evenly the habitat types and management activity on sites. Care is taken in choosing a transect route as it must then remain fixed to enable butterfly sightings to be compared from year to year. Transects are typically about 2-4km long, taking between 45 minutes and two hours to walk, and are divided into sections corresponding to different habitat or management units. Butterflies are recorded in a fixed width band (typically 5m wide) along the transect each week from the beginning of April until the end of September yielding, ideally, 26 counts per year.

Taxonomic Coverages

Geographic Coverages

UK.

Bibliographic Citations

Contacts

originator
UK Butterfly Monitoring Scheme
c/o Biological Records Centre, CEH Wallingford
Wallingford
OX10 8BB
Oxfordshire
GB
email: ukbms@ceh.ac.uk
homepage: http://www.ukbms.org
metadata author
UK Butterfly Monitoring Scheme
c/o Biological Records Centre, CEH Wallingford
Wallingford
OX10 8BB
Oxfordshire
GB
email: ukbms@ceh.ac.uk
homepage: http://www.ukbms.org
distributor
NBN Atlas
Unit F, 14 - 18 St Mary's Gate, Lace Market
Nottingham
NG1 1PF
Nottinghamshire
GB
email: admin@nbnatlas.org
David Roy
administrative point of contact
email: brc@ceh.ac.uk
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