5afbbd36-2c63-4aa1-8177-695bed98d7a9 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 2026-01-09T10:37:48 UK GEMINI 2.3 OSGB 1936 / British National Grid United Kingdom Butterfly Monitoring Scheme: species trends 2012 2013-05-01 publication 1368011698524 CEH:EIDC: https://catalogue.ceh.ac.uk/id/5afbbd36-2c63-4aa1-8177-695bed98d7a9 10.5285/5afbbd36-2c63-4aa1-8177-695bed98d7a9 doi: Botham, M., Roy, D., Brereton, T., Middlebrook, I., Randle, Z. (2013). United Kingdom Butterfly Monitoring Scheme: species trends 2012. NERC Environmental Information Data Centre 10.5285/5afbbd36-2c63-4aa1-8177-695bed98d7a9 This dataset provides linear trends, over varying time periods, for the UK Butterfly Monitoring Scheme (UKBMS) Collated Indices of individual butterfly species across the UK. The main statistical values derived from a linear regression (slope, standard error, P-value) are presented for the entire time series for each species (1976 to 2012), for the last 20 years, and for the last decade. In addition a trend class, based on slope direction and its significance, and a percentage change for that time period are provided to describe the statistical trends. These trend data are provided for 59 UK butterfly species. Trends across different time series allow us to determine the long and short-term trends for individual species. This is enables us to focus conservation and research and also to assess species responses to conservation already in place. The Centre for Ecology & Hydrology (CEH) and Butterfly Conservation (BC) are responsible for the calculation and interpretation of this trend datasets. The collection of the underlying UKBMS data is reliant on a large volunteer community. The UK Butterfly Monitoring Scheme is funded by a consortium of organisations led by the Joint Nature Conservation Committee (JNCC). This dataset is updated annually and a more recent version of the UKBMS species trends (2013) is now available. Full details about this dataset can be found at https://doi.org/10.5285/5afbbd36-2c63-4aa1-8177-695bed98d7a9 UKBMS UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk pointOfContact Butterfly Conservation info@butterfly-conservation.org pointOfContact UK Butterfly Monitoring Scheme ukbms@ceh.ac.uk resourceProvider NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian Botham, M. 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 Roy, D. 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 author Middlebrook, I. Butterfly Conservation info@butterfly-conservation.org author Randle, Z. Butterfly Conservation info@butterfly-conservation.org author NERC Environmental Information Data Centre info@eidc.ac.uk publisher annually Main updates occur annually at the end of the year following data collection and collation at Butterfly Conservation. Species Distribution theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication butterfly lepidopteran GEMET - Concepts, version 4.1.3 2019-01-28 creation United Kingdom England Scotland Wales Northern Ireland GeoNames 2006-01-01 creation Biodiversity otherRestrictions Registration is required to access this data otherRestrictions Licence terms and conditions apply otherRestrictions If you reuse this data, you should cite: Botham, M., Roy, D., Brereton, T., Middlebrook, I., Randle, Z. (2013). United Kingdom Butterfly Monitoring Scheme: species trends 2012. NERC Environmental Information Data Centre https://doi.org/10.5285/5afbbd36-2c63-4aa1-8177-695bed98d7a9 textTable English utf8 biota 1976-04-01 2012-09-01 -8.648 1.768 49.864 60.861 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre ukbms@ceh.ac.uk distributor https://data-package.ceh.ac.uk/sd/5afbbd36-2c63-4aa1-8177-695bed98d7a9.zip Documents Documents available to assist with re-use of this dataset. information https://data-package.ceh.ac.uk/data/5afbbd36-2c63-4aa1-8177-695bed98d7a9 Download the data Download a copy of this data download 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 Trends are calculated by performing a linear regression on the annual Collated Indices for each species. Collated indices are calculated from UKBMS data using a log-linear model incorporating individual site indices from all monitored sites across the UK for a given species in a given year. They give a statistical measure of how the abundance of each species has changed on monitored sites since 1976, over the last 20 years, and over the last decade. Because the Collated indices are only calculated for each species in years in which it was recorded on five or more sites, the starting year for the series is later than 1976 for a number of rarer species.