United Kingdom Butterfly Monitoring Scheme: species trends 2015 version 2
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 2015), 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 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 version supersedes the original version due to an error in the precision of the reported figures. This dataset is updated annually and a more recent version of the UKBMS species trends (2016) is now available. Full details about this dataset can be found at https://doi.org/10.5285/0383e234-daad-4f0e-8482-c227661f4941
dataset
https://data-package.ceh.ac.uk/sd/0383e234-daad-4f0e-8482-c227661f4941.zip
name: Supporting information
description: Supporting information available to assist in re-use of this dataset
function: information
https://data-package.ceh.ac.uk/data/0383e234-daad-4f0e-8482-c227661f4941
name: Download the data
description: Download a copy of this data
function: download
https://catalogue.ceh.ac.uk/id/0383e234-daad-4f0e-8482-c227661f4941
doi:
eng
biota
Species Distribution
publication
2008-06-01
creation
2006-01-01
butterflies
Lepidoptera
annual
-8.648
1.768
60.861
49.864
1976-04-01
2015-09-01
publication
2017-11-30
creation
2017-11-20
notPlanned
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.
publication
2010-12-08
Comma-separated values (CSV)
If you reuse this data, you should cite: Botham, M., Roy, D., Brereton, T., Middlebrook, I., Randle, Z. (2017). United Kingdom Butterfly Monitoring Scheme: species trends 2015 version 2. NERC Environmental Information Data Centre https://doi.org/10.5285/0383e234-daad-4f0e-8482-c227661f4941
UK Centre for Ecology & Hydrology
pointOfContact
NERC EDS Environmental Information Data Centre
custodian
NERC Environmental Information Data Centre
publisher
Centre for Ecology & Hydrology
author
Centre for Ecology & Hydrology
author
Butterfly Conservation
author
Butterfly Conservation
author
Butterfly Conservation
author
Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg
Lancaster
LA1 4AP
UK
pointOfContact
2021-06-25T18:34:52