United Kingdom Butterfly Monitoring Scheme: species trends 2017
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 2017), 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 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 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. Full details about this dataset can be found at https://doi.org/10.5285/ddcd1fa7-27d8-4082-93bd-a550c98208cf
dataset
https://data-package.ceh.ac.uk/data/ddcd1fa7-27d8-4082-93bd-a550c98208cf
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https://data-package.ceh.ac.uk/sd/ddcd1fa7-27d8-4082-93bd-a550c98208cf.zip
name: Supporting information
description: Supporting information available to assist in re-use of this dataset
function: information
https://catalogue.ceh.ac.uk/id/ddcd1fa7-27d8-4082-93bd-a550c98208cf
doi:
eng
biota
Species Distribution
publication
2008-06-01
creation
2006-01-01
Lepidoptera
butterflies
annual
-8.648
1.768
60.861
48.718
1976-04-01
2017-09-30
publication
2019-07-11
notPlanned
Trends are calculated by performing a linear regression on the annual Collated Indices for each species. Indices are calculated for all species (across WCBS 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.
publication
2010-12-08
Comma-separated values (CSV)
© UK Centre for Ecology & Hydrology
© Butterfly Conservation
© Joint Nature Conservation Committee
© British Trust for Ornithology
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.
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: species trends 2017. NERC Environmental Information Data Centre https://doi.org/10.5285/ddcd1fa7-27d8-4082-93bd-a550c98208cf
UK Centre for Ecology & Hydrology
pointOfContact
Butterfly Conservation
info@butterfly-conservation.org
pointOfContact
NERC EDS Environmental Information Data Centre
custodian
NERC Environmental Information Data Centre
publisher
Centre for Ecology & Hydrology
author
Butterfly Conservation
info@butterfly-conservation.org
author
British Trust for Ornithology
author
Centre for Ecology & Hydrology
author
Butterfly Conservation
info@butterfly-conservation.org
author
Butterfly Conservation
info@butterfly-conservation.org
author
Centre for Ecology & Hydrology
author
Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg
Lancaster
LA1 4AP
UK
pointOfContact
2022-04-12T12:52:16