Table 4 Summary of the results of studies investigating amount, distance-dependent, and structural effects of forest patches on bees
| Â | Country (%) | Distance/area (%) | Species (%) | Matrix (%) | Results (%) |
|---|---|---|---|---|---|
Distance-dependent effects (n  = 36) | Brazil (22) | < 2 km (83.3) | Native bee (63.8) | Coffee (27.7) | Negative (77.7) |
Other (78) | > 2 km (16.7) | Honeybee (36.1) | Other (72.3) | Positive (13.5) | |
Amount effects (n  = 33) | Brazil (27.7) | < 2 km (75.7) | Native bee (85) | Soybean (12) | Negative (21) |
Other (72.3) |   2 km (29.3) | Honeybee (15) | Other (88) | Positive (66.6) | |
Structural effects (n  = 31) | Brazil (29) | Area  < 100 ha (36) | Native bee (84) | Farm (58) | Negative (17) |
Other (71) | Area  > 100 ha (64) | Honeybee (16) | Other (42) | Positive (47) |