United Kingdom Butterfly Monitoring Scheme: collated indices 2018

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 Centre for Ecology & Hydrology (CEH), 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. Full details about this dataset can be found at https://doi.org/10.5285/37cc9541-0e15-4fb8-97ea-685f306228d5

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Metadata Language
English (en)
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utf8
Dataset Reference Date ()
2019-11-26
Identifier
https://catalogue.ceh.ac.uk/id/37cc9541-0e15-4fb8-97ea-685f306228d5
Identifier
doi: / 10.5285/37cc9541-0e15-4fb8-97ea-685f306228d5
Other citation details
Botham, M.S., Brereton, T., Harris, S., Harrower, C., Middlebrook, I., Randle, Z., Roy, D.B. (2019). United Kingdom Butterfly Monitoring Scheme: collated indices 2018. NERC Environmental Information Data Centre 10.5285/37cc9541-0e15-4fb8-97ea-685f306228d5
  Centre for Ecology & Hydrology - Botham, M.S.
  Butterfly Conservation - Brereton, T.
  British Trust for Ornithology - Harris, S.
  Centre for Ecology & Hydrology - Harrower, C.
  Butterfly Conservation - Middlebrook, I.
  Butterfly Conservation - Randle, Z.
  Centre for Ecology & Hydrology - Roy, D.B.
  UK Centre for Ecology & Hydrology - Marc Botham
  NERC EDS Environmental Information Data Centre
  NERC Environmental Information Data Centre
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  • Environmental Monitoring Facilities
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This resource is available under the terms of the Open Government Licence
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© UK Centre for Ecology & Hydrology
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© Natural Environment Research Council
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© Butterfly Conservation
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© Joint Nature Conservation Committee
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© British Trust for Ornithology
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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.
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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 2018. NERC Environmental Information Data Centre https://doi.org/10.5285/37cc9541-0e15-4fb8-97ea-685f306228d5
Spatial representation type
textTable
Topic category
  • Biota
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Begin date
1976-04-01
End date
2018-09-30
 
Code
OSGB 1936 / British National Grid

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  • Comma-separated values (CSV) ()

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Dataset Reference Date ()
2010-12-08
Statement
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).

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37cc9541-0e15-4fb8-97ea-685f306228d5 XML
Metadata Language
English (en)
Character set
ISO/IEC 8859-1 (also known as Latin 1)
Resource type
dataset
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dataset
Metadata Date
2021-06-25T18:32:58
Metadata standard name
UK GEMINI
Metadata standard version
2.3
  Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK
 
 

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