Figure 2

Comparison of data sources: practitioner recommendations versus BeeWatch citizen science data. Images of practitioner sources used for gathering data on pollinator and bumblebee friendly plants and a map of the UK showing all locations for which BeeWatch data were submitted, and schematic showing numbers of plants recommended as bumblebee-friendly by practitioners and number of plants photographed and reported by BeeWatch participants as being used by UK bumblebees (middle). (a) Practitioner sources used for gathering data on pollinator- and bumblebee-friendly plants and the total number of plants recommended as bumblebee-friendly (in blue; derived from 14 sources detailed in Suppl. Appendix Table 1 in bold font); (b) red symbols show locations of observations of bumblebees feeding on plants across the UK as recorded and photographed by BeeWatch participants between August 2011 and June 2017 and the total number of plants recorded and photographed as being used by UK bumblebees by BeeWatch participants (in red). The number of plants common to both the bumblebee-friendly list and BeeWatch is shown in purple. The top 10 plants recorded in BeeWatch but not found in the bumblebee-friendly list shown in red (number in brackets = their proportions out of the total number of plants recorded). The top 10 plants reported as being good for bumblebees but not recorded by BeeWatch participants shown in blue, number in brackets = number of sources they occurred in, from a total of 14). The UK map contains data from BeeWatch (2011–2017) and OS data Crown