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UK Pollinator Monitoring Scheme

Pan trap survey data from the UK Pollinator Monitoring Scheme, 2017-2022

https://doi.org/10.5285/4a565007-d3a1-468d-9f84-70ec7594fafe
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By accessing or using this dataset, you agree to the terms of the relevant licence agreement(s). You will ensure that this dataset is cited in any publication that describes research in which the data have been used.

The following acknowledgement is required for use of this dataset: The UK Pollinator Monitoring Scheme (UK PoMS) is a partnership funded jointly by the UK Centre for Ecology & Hydrology (UKCEH) and Joint Nature Conservation Committee (JNCC) (through funding from the Department for Environment, Food & Rural Affairs, Scottish Government, Welsh Government and Department of Agriculture, Environment and Rural Affairs for Northern Ireland). UKCEH’s contribution is part-funded by the Natural Environment Research Council formerly as part of the UK-SCAPE programme (award NE/R016429/1) and now as part of the NC-UK programme (award NE/Y006208/1) delivering National Capability. Between 2017 and 2021, PoMS was funded by UKCEH and Defra (England), Welsh Government, Scottish Government, DAERA (Northern Ireland), and JNCC. PoMS is indebted to the many volunteers who carry out surveys and contribute data to the scheme.

This dataset is available under the terms of the Open Government Licence

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This dataset contains samples and occurrences of insects and flowers collected for the 1 km square survey of the UK Pollinator Monitoring Scheme (PoMS). It covers the years 2017 to 2022 (note that 2017 was a pilot year and has less data than subsequent years, and that the survey first became active in Northern Ireland in 2021, which was a pilot year in that country).

This survey uses pan traps positioned on transects within a randomly allocated set of 1 km squares across the UK. The sample data contains information on the location of the traps, various environmental variables, and the total number of insect specimens collected. The occurrence data for insects contains records of all hoverflies and bees from the traps, identified (wherever possible) to species level. The occurrence data for flowers contains records of all forbs that are in flower within 2 metres of each pan-trap station. (In addition, Flower-Insect Timed Counts are carried out in the same 1 km squares, see separate dataset for these data.)

UK PoMS is co-ordinated by UKCEH, with the following delivery partners up to 2022: the Bumblebee Conservation Trust, Butterfly Conservation, British Trust for Ornithology, Hymettus, Natural History Museum, the University of Reading and University of Leeds.

PoMS Steering Group members in 2022 were JNCC, DAERA, Defra, NatureScot, Welsh Government, All-Ireland Pollinators Plan, Natural England, Science and Advice for Scottish Agriculture, Buglife and National Biodiversity Network.
Publication date: 2025-08-19
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More information

View numbers valid from 19 August 2025 Download numbers valid from 19 August 2025 (information prior to this was not collected)

Format

Comma-separated values (CSV)

Spatial information

Study area
Spatial representation type
Tabular (text)
Spatial reference systems
OSGB 1936 / British National Grid
OSIE / Irish Grid

Temporal information

Temporal extent
2017-05-01    to    2022-09-30

Provenance & quality

Data are collected by PoMS volunteers and staff from up to 95 1 km squares, during four visits each summer, aiming for one visit during suitable weather approximately every month from May to September. There will be gaps in the data where a square cannot be visited during a particular year or month. At each visit, five pan-traps are positioned in a transect across the 1 km square, and left in position for approx. six hours. The insects trapped are returned to the PoMS laboratory, where all insects are sorted into main taxonomic groupings and counted, and all bees and hoverflies are passed to taxonomic experts for identification to species level where possible.

Data is entered using online forms that promote consistency in data formats. QA checks are carried out on any photos provided that show plants in flower in the vicinity of the pan-traps; bee and hoverfly identifications are cross-checked by multiple taxonomists for all rare and apparently out-of-range occurrences, plus a random sample of other occurrences. The data is then processed through R to highlight and correct potential errors (the code for this is available in the metadata).

Martin Harvey is the PoMS co-ordinator at UKCEH and the first point of contact for queries via the poms@ceh.ac.uk email. Claire Carvell is the project manager for PoMS, also based at UKCEH Wallingford and responsible for strategic direction, overseeing delivery of the surveys, data management and reporting, and liaising with JNCC and other partners. Nadine Mitschunas leads the field team with Chris Andrews and Angus Garbutt, and Francesca Mancini leads on statistical analysis of PoMS data, with Robin Hutchinson working on data management and communications. Other UKCEH team members are Nick Isaac, Lucy Ridding, Marc Botham and Helen Roy, and our partners are represented by Richard Comont (BCT), Richard Fox and Megan Lowe (BC), Dawn Balmer and Rob Jaques (BC), Paul Lee and Rowan Edwards (Hymettus), Mike Garratt and Simon Potts (Reading University), Bill Kunin (Leeds University) and Alfried Vogler (Natural History Museum).

Thanks go to the following for their contributions up to and including 2022: Richard Dawson, Katty Baird, José van Paassen, Jan Winder, Catherine Jones and Ellen Lamborn for covering unallocated 1 km survey squares, mentoring volunteers and promoting PoMS; Ivan Wright, Nigel Jones, Liam Crowley, Alice Parfitt, Richard Dawson and Ellen Lamborn for identifying specimens; Steven Falk and Mike Edwards for taxonomic expertise

Licensing and constraints

This dataset is available under the terms of the Open Government Licence

Cite this dataset as:
UK Pollinator Monitoring Scheme (2025). Pan trap survey data from the UK Pollinator Monitoring Scheme, 2017-2022. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/4a565007-d3a1-468d-9f84-70ec7594fafe

The following acknowledgement is required for use of this dataset: The UK Pollinator Monitoring Scheme (UK PoMS) is a partnership funded jointly by the UK Centre for Ecology & Hydrology (UKCEH) and Joint Nature Conservation Committee (JNCC) (through funding from the Department for Environment, Food & Rural Affairs, Scottish Government, Welsh Government and Department of Agriculture, Environment and Rural Affairs for Northern Ireland). UKCEH’s contribution is part-funded by the Natural Environment Research Council formerly as part of the UK-SCAPE programme (award NE/R016429/1) and now as part of the NC-UK programme (award NE/Y006208/1) delivering National Capability. Between 2017 and 2021, PoMS was funded by UKCEH and Defra (England), Welsh Government, Scottish Government, DAERA (Northern Ireland), and JNCC. PoMS is indebted to the many volunteers who carry out surveys and contribute data to the scheme.

Related

This dataset is included in the following collections

UK Pollinator Monitoring Scheme

Correspondence/contact details

UK Pollinator Monitoring Scheme
UK Centre for Ecology & Hydrology
 poms@ceh.ac.uk

Author

UK Pollinator Monitoring Scheme
UK Centre for Ecology & Hydrology

Other contacts

Rights holders
UK Centre for Ecology & Hydrology, Joint Nature Conservation Committee
Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk

Additional metadata

Topic categories
biota
environment
INSPIRE themes
Environmental Monitoring Facilities
Species Distribution
Keywords
apidae , Biodiversity , Ecosystem services , environmental monitoring , flora (biology) , hoverflies , insect , pan traps , Pollinators , syrphidae , UK Pollinator Monitoring Scheme (PoMS)
Funding
Joint Nature Conservation Committee
Department for Environment Food and Rural Affairs
Scottish Government
Welsh Government
Department of Agriculture, Environment and Rural Affairs for Northern Ireland
Natural Environment Research Council Award: NE/Y006208/1
UK Centre for Ecology & Hydrology