Comparison of basal area and dominance for species sampled by the Urban Tree Census (2010) and by the U. S. Public Land Survey (1820-1830). Dominance is percentage of total basal area and does not sum to 100 because some minor species were not included. Percent change reflects change in dominance from presettlement to modern, very large values may partly reflect differences in sampling strategy between data sets.
| Species | Species group | Urban tree census | Public land survey | ||
|---|---|---|---|---|---|
| Basal area/hectare | Dominance | Dominance | Change in dominance (%) | ||
| Quercus alba | Native-oak | 0.80 | 6.97 | 41.28 | −83.12 |
| Quercus macrocarpa | Native-oak | 1.02 | 8.86 | 13.09 | −32.29 |
| Quercus rubra | Native-oak | 0.66 | 5.70 | 6.60 | −13.68 |
| Acer saccharinum | Native non-oak | 1.09 | 9.44 | 0.01 | 80787.98 |
| Acer negundo | Native non-oak | 0.91 | 7.89 | 0.00 | -- |
| Populus deltoides | Native non-oak | 0.66 | 5.75 | 0.02 | 36737.79 |
| Fraxinus pennsylvanica | Native non-oak | 0.57 | 4.97 | 0.00 | -- |
| Prunus serotina | Native non-oak | 0.52 | 4.55 | 0.00 | -- |
| Juglans nigra | Native non-oak | 0.29 | 2.53 | 2.18 | 15.79 |
| Ulmus americana | Native non-oak | 0.29 | 2.50 | 9.03 | −72.32 |
| Gleditsia triacanthos | Native non-oak | 0.26 | 2.21 | 0.00 | -- |
| Fraxinus americana | Native non-oak | 0.24 | 2.07 | 0.14 | 1388.67 |
| Acer saccharum | Native non-oak | 0.23 | 1.98 | 0.97 | 104.78 |
| Rhamnus cathartica | Non-native | 0.52 | 4.55 | 0.00 | -- |
| Ulmus pumila | Non-native | 0.30 | 2.60 | 0.00 | -- |
| Pinus strobus | Non-native | 0.25 | 2.20 | 0.00 | -- |
| Acer platanoides | Non-native | 0.23 | 2.02 | 0.00 | -- |
| Robinia pseudoacacia | Non-native | 0.21 | 1.78 | 0.00 | -- |
| Salix spp. | Non-native | 0.18 | 1.53 | 0.00 | -- |
| Malus spp. | Non-native | 0.16 | 1.37 | 0.00 | -- |
| Total | 9.39 | 81.44 | 73.32 | ||