ace3c3ef-df89-40b9-ba8b-106997fd6d9c English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2026-01-09T10:10:35 UK GEMINI 2.3 OSGB 1936 / British National Grid United Kingdom Butterfly Monitoring Scheme: collated indices 2017 2019-07-11 publication https://catalogue.ceh.ac.uk/id/ace3c3ef-df89-40b9-ba8b-106997fd6d9c 10.5285/ace3c3ef-df89-40b9-ba8b-106997fd6d9c doi: Botham, M.S., Brereton, T., Harris, S., Harrower, C., Middlebrook, I., Randle, Z., Roy, D.B. (2019). United Kingdom Butterfly Monitoring Scheme: collated indices 2017. NERC Environmental Information Data Centre 10.5285/ace3c3ef-df89-40b9-ba8b-106997fd6d9c Collated indices are a relative measure of butterfly abundance across monitored sites in the UK, calculated from data collected by the UK Butterfly Monitoring Scheme (UKBMS). Collated indices are calculated annually for each individual butterfly species that has been recorded on five or more sites in that year. Based on this criterion collated indices have been calculated for the entire UKBMS time series from 1976 to the current year for the majority of species. For some rarer species the time series starts in a later year due to lack of data. Collated indices are calculated using a statistical model that accounts for missing data. The number of sites for each species ranges from 5 to several hundred and varies from year to year. Since 2008 more than 1,000 sites have been monitored across the UK each year. Collated indices are calculated so that we can determine how butterfly populations are changing over time across the UK. This data can be used, for example, to determine where to target conservation efforts and to measure the condition of the UK countryside. Butterflies are recognised as important indicators of biodiversity and environmental change (e.g. as official UK Biodiversity Indicators), and have been used in numerous research studies to understand the impacts of changes in climate and the extent and condition of habitats. The UK Butterfly Monitoring Scheme is organized and funded by Butterfly Conservation (BC), the UK Centre for Ecology & Hydrology (UKCEH), the British Trust for Ornithology (BTO), and the Joint Nature Conservation Committee (JNCC). The UKBMS is indebted to all volunteers who contribute data to the scheme. This dataset is updated annually and a more recent version of the UKBMS collated indices is available. Full details about this dataset can be found at https://doi.org/10.5285/ace3c3ef-df89-40b9-ba8b-106997fd6d9c Botham, M.S. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk pointOfContact NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC Environmental Information Data Centre info@eidc.ac.uk publisher Botham, M.S. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-5276-1405 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Brereton, T. Butterfly Conservation info@butterfly-conservation.org author Harris, S. British Trust for Ornithology sarah.harris@bto.org author Harrower, C. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-5070-5293 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Middlebrook, I. Butterfly Conservation info@butterfly-conservation.org https://orcid.org/0000-0002-0448-9144 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Randle, Z. Butterfly Conservation info@butterfly-conservation.org author Roy, D.B. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-5147-0331 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Brereton, T. Butterfly Conservation info@butterfly-conservation.org pointOfContact notPlanned Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication lepidopteran butterfly GEMET - Concepts, version 4.1.3 2019-01-28 creation England Scotland Wales Northern Ireland United Kingdom GeoNames 2006-01-01 creation Biodiversity otherRestrictions Registration is required to access this data otherRestrictions This resource is made available under the terms of the Open Government Licence otherRestrictions © UK Centre for Ecology & Hydrology otherRestrictions © Butterfly Conservation otherRestrictions © Joint Nature Conservation Committee otherRestrictions © British Trust for Ornithology otherRestrictions 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. otherRestrictions If you reuse this data, you should cite: Botham, M.S., Brereton, T., Harris, S., Harrower, C., Middlebrook, I., Randle, Z., Roy, D.B. (2019). United Kingdom Butterfly Monitoring Scheme: collated indices 2017. NERC Environmental Information Data Centre https://doi.org/10.5285/ace3c3ef-df89-40b9-ba8b-106997fd6d9c textTable English utf8 biota 1973-04-01 2017-09-30 -8.648 1.768 48.776 60.861 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/ace3c3ef-df89-40b9-ba8b-106997fd6d9c Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/ace3c3ef-df89-40b9-ba8b-106997fd6d9c.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Collated indices are produced using a series of statistical models on butterfly transect counts recorded by a volunteer network. These indices are a relative measure of each species' abundance across the UK compared to the baseline in 1976. The statistics are presented as log10 values. These values are centred around an arbitrary value of 2 as a mean for the time series in order to help show which years are below or above average (a technique used in other biodiversity indicators).