Table S2.
Levels of significance for the differences of mean estimates among three ecoregions (Temperate Forests, Great Plains, and Mediterranean California)
| Categories | Nesting resources | Floral resources | Floral bloom duration | |||||||
| Ground | Cavity | Stem | Wood | Spring | Summer | Fall | Spring | Summer | Fall | |
| Developed/Open Space | * | |||||||||
| Developed/Low Intensity | * | * | ** | * | ||||||
| Developed/Medium Intensity | * | |||||||||
| Developed/High Intensity | * | |||||||||
| Barren | ||||||||||
| Deciduous Forest | ||||||||||
| Evergreen Forest | ||||||||||
| Mixed Forest | ||||||||||
| Shrubland | ||||||||||
| Grass/Pasture | ||||||||||
| Grassland/Herbaceous | * | ** | ||||||||
| Pasture/Hay | * | * | * | * | ||||||
| Other Hay/Non Alfalfa | ||||||||||
| Woody Wetlands | * | * | ||||||||
| Herbaceous Wetlands | ||||||||||
| Open Water | ||||||||||
Significant differences: *P < 0.05 and **P < 0.01.