Summary of final models of landscape predictors of Bombus density.

All models are fitted to data from 338 visits to 42 transect sites. Optimum scale: landscape scale at which landscape metrics were calculated. Fixed effects: Date, date of transect-visit; FL, visit-specific forage quality index for long-tongued Bombus species; FS, visit-specific forage quality index for short-tongued Bombus species; OSR, % oilseed rape cover; SNA, % semi-natural cover; TE, total length of field edges; URB, % urban cover; WOO, % woodland cover. Random effects: Site, identity of site. Dispersion estimate: residual sum of squares divided by residual degrees of freedom. AIC: Akaike’s Information Criterion. ΔAIC: comparison to final model at alternative landscape scales. d.f: degrees of freedom, calculated as: n -1 - number of parameters.Summary of final models of landscape predictors of Bombus density.