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BeeWalk bumblebee distributions for Great Britain 2008-2019

Dataset homepage

Citation

Bumblebee Conservation Trust (2020). BeeWalk bumblebee distributions for Great Britain 2008-2019. Occurrence dataset https://doi.org/10.15468/xde3qb accessed via GBIF.org on 2022-06-28.

Description

Records submitted to the Bumblebee Conservation Trust's BeeWalk project, a standardised transect-walking abundance-based survey focussed on bees in the genus Bombus (bumblebees) and Apis (honeybees), with occasional records of other bee species. No particular intentional bias in habitats surveyed. Records cover Great Britain, the Channel Islands and Isle of Man (but not Northern Ireland). North/mid Wales and north-west Scotland are comparatively under-represented in the dataset. Additional information, including a detailed protocol, survey analysis reports, data entry form, etc, can all be found at www.beewalk.org.uk

Purpose

Records were collected with the aim of better understanding the abundance and distribution of British bumblebee species, and creating an index of abundance in the same way as has been done for butterflies with the UKBMS dataset.

Sampling Description

Quality Control

Data are collected by volunteers whose identification abilities will vary. Frequent bumblebee ID training courses are provided for volunteers, identification resources are provided on the project website, and the category 'indeterminate bumblebee' is provided as a catch-all for bees where the identification is uncertain. Trials carried out as part of the NPPMF project have found that volunteer's error rate using the BeeWalk methodology is not significantly different to that of an expert. Photographs and/or specimens are not required for each sighting, but unusual sightings (rare or difficult-to-identify species) are checked by referral to the recorder unless they are known to be experts. The dataset has been validated and verified using the NBN Record Cleaner and records outside their range have been checked and confirmed by an expert after referral to the original recorder, or downgraded to 'indeterminate bumblebee' where no evidence could be provided. The cryptic Bombus lucorum complex are treated as B. lucorum sensu lato, and only queens and males of B. terrestris & B. lucorum (sl) are recorded to species (indistinguishable workers are treated as the aggregate species terrestris/lucorum).

Method steps

  1. Volunteers walk a set transect on a monthly basis between March and October (inclusive), recording all bumblebees seen within a 4m x 4m 2m 'recording box' in front of the recorder (see www.beewalk.org.uk for full details). Photographs are not submitted in support of all records, but netting and photographing bumblebees to help ID is encouraged, and BBCT maintain an ID support service, BeeWatch. BBCT also run a series of ID training events aimed at BeeWalkers to upskill volunteers. Records submitted are validated and their distribution verified using the NBN Record Cleaner with verification rules from the Bees, Wasps and Ants Recording Society. Records which fail verification or validation checks are referred back to recorders for further evidence: if none are forthcoming the records are not included in this dataset

Taxonomic Coverages

Geographic Coverages

The BeeWalk surveys covers Great Britain, the Channel Islands, and the Isle of Man, but not Northern Ireland

Bibliographic Citations

Contacts

originator
Bumblebee Conservation Trust
Beta Centre
Stirling
FK9 4NF
email: enquiries@bumblebeeconservation.org
homepage: http://bumblebeeconservation.org/
metadata author
Bumblebee Conservation Trust
Beta Centre
Stirling
FK9 4NF
email: enquiries@bumblebeeconservation.org
homepage: http://bumblebeeconservation.org/
distributor
NBN Atlas
Unit F, 14 - 18 St Mary's Gate, Lace Market
Nottingham
NG1 1PF
Nottinghamshire
GB
email: admin@nbnatlas.org
Richard Comont
administrative point of contact
email: richard.comont@bumblebeeconservation.org
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