United Kingdom Butterfly Monitoring Scheme: species trends 2022

This dataset provides linear trends, over varying time periods, for the 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 2022), for the last 20 years, and for the last decade. In addition, trends are classified based on the direction and significance of a linear slope together with an estimated percentage change for that time period. These trend data are provided for all UK butterfly species for which we have sufficient data (58 species). Trends are calculated by performing a linear regression on the annual Collated indices for each species. Collated indices are calculated using a log-linear model incorporating individual site indices from all monitored sites across the UK for a given species in a given year. Trends across different time series allow us to determine the long and short-term status of individual species. This is enables us to focus conservation and research and also to assess species responses to conservation already in place. 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 work was supported by the Natural Environment Research Council award number NE/R016429/1 as part of the UK-SCAPE programme delivering National Capability. #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. Full details about this dataset can be found at https://doi.org/10.5285/4d21825b-56fc-4e01-8d67-068d1d587633

Identification info

Metadata Language: English (en)

Character set: utf8

Dataset Reference Date (): 2023-12-20

Identifier: https://catalogue.ceh.ac.uk/id/4d21825b-56fc-4e01-8d67-068d1d587633

Identifier: doi: / 10.5285/4d21825b-56fc-4e01-8d67-068d1d587633

Other citation details: Botham, M.S., Middlebrook, I., Heywood, J., Harrower, C., Conway, R., Roy, D.B. (2023). United Kingdom Butterfly Monitoring Scheme: species trends 2022. NERC EDS Environmental Information Data Centre 10.5285/4d21825b-56fc-4e01-8d67-068d1d587633

UK Centre for Ecology & Hydrology - Botham, M.S.

https://orcid.org/0000-0002-5276-1405

Butterfly Conservation - Middlebrook, I.

https://orcid.org/0000-0002-0448-9144

British Trust for Ornithology - Heywood, J.

UK Centre for Ecology & Hydrology - Harrower, C.

https://orcid.org/0000-0001-5070-5293

Butterfly Conservation - Conway, R.

UK Centre for Ecology & Hydrology - Roy, D.B.

https://orcid.org/0000-0002-5147-0331

UK Centre for Ecology & Hydrology - Botham, M.S.

https://orcid.org/0000-0002-5276-1405

UK Centre for Ecology & Hydrology

Butterfly Conservation

British Trust for Ornithology

Natural Environment Research Council

Joint Nature Conservation Committee

NERC EDS Environmental Information Data Centre

GEMET - INSPIRE themes, version 1.0 ()

Environmental Monitoring Facilities

Limitations on Public Access: otherRestrictions

Other constraints: no limitations

Use constraints: otherRestrictions

Other constraints: This resource is available under the terms of the Open Government Licence

Use constraints: otherRestrictions

Other constraints: Contains UK Butterfly Monitoring Scheme (UKBMS) data © copyright and database right Butterfly Conservation, the UK Centre for Ecology & Hydrology, British Trust for Ornithology, and the Joint Nature Conservation Committee.

Use constraints: otherRestrictions

Other constraints: If you reuse this data, you should cite: Botham, M.S., Middlebrook, I., Heywood, J., Harrower, C., Conway, R., Roy, D.B. (2023). United Kingdom Butterfly Monitoring Scheme: species trends 2022. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/4d21825b-56fc-4e01-8d67-068d1d587633

Spatial representation type: textTable

Topic category

Biota

Begin date: 2022-04-01

End date: 2022-09-30

Code: OSGB 1936 / British National Grid

Code: OSNI 1952 / Irish National Grid

Distribution Information

Data format

Comma-separated values (CSV) ()

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Quality Scope: dataset

Other: dataset

Report

Dataset Reference Date (): 2010-12-08

Statement: Trends are calculated by performing a linear regression on the annual Collated Indices for each species. Indices are calculated for all species (across Wider Countryside Butterfly Survey squares and traditional UKBMS sites) using the Generalised Abundance Index (GAI) method developed in 2016 with an additional modification that the data from each site in each year is weighted in the final stage relative to the proportion of the species flight period surveyed that year for that site. 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 there was sufficient data available, the starting year for the series is later than 1976 for a number of rarer species.

Metadata

File identifier: 4d21825b-56fc-4e01-8d67-068d1d587633 XML

Metadata Language: English (en)

Character set: ISO/IEC 8859-1 (also known as Latin 1)

Resource type: dataset

Hierarchy level name: dataset

Metadata Date: 2024-02-27T16:21:49

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

NERC EDS Environmental Information Data Centre

Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK

https://eidc.ac.uk/

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