Table 2. Results of the generalized linear model to analyze the effect of locality, treatment, and the corresponding interaction between both, on the visitation rate (number of visits per plant per 30 min) by two bumblebee groups (group 1 and 3) in two areas of Northern Spain (Ancares and Pontón, the orange and yellow morph population respectively).
We marked in bold the statistically significant factors (P < 0.05). Factors: locality (Ancares and Pontón, orange and yellow morph population respectively); treatment (control, local transplants, and foreign transplants); and floral visitor groups (group 1, Bombus terrestris, B. lucorum; group 3, B. pratorum, B. soroensis ancaricus, B. lapidarius decipiens). Note that we only included results of the visitor groups that showed significant model effects (Group 1, Group 3).
| Floral visitors | Factors | Wald Chi-Square | d.f. | P |
|---|---|---|---|---|
| Group 1 | Locality | 32.222 | 1 | <0.001 |
| Treatment | 6.181 | 2 | 0.045 | |
| Treatment * Locality | 0.692 | 2 | 0.707 | |
| Group 3 | Locality | 1.867 | 1 | 0.172 |
| Treatment | 16.331 | 2 | <0.001 | |
| Treatment * Locality | 0.114 | 2 | 0.945 |