Appendix C (TABLE C1). A table showing coefficients of determination (R²) from linear regressions of phylogenetic diversity on species richness for trees and seedlings at time 2, and from linear regressions of change in phylogenetic diversity on change in species richness over time, for northern and southern latitudinal zones, and for ecoregion sections within each zone.
| Plots | Time 2 | Change over Time | |||
| Trees | Seedling | Trees | Seedlings | ||
| North | 4,576 | 0.704 | 0.746 | 0.667 | 0.795 |
| Northern Lower Peninsula (212H) | 538 | 0.756 | 0.746 | 0.625 | 0.781 |
| Southern Superior Uplands (212J) | 153 | 0.770 | 0.796 | 0.750 | 0.786 |
| Western Superior Uplands (212K) | 242 | 0.666 | 0.800 | 0.612 | 0.841 |
| Northern Superior Uplands (212L) | 520 | 0.865 | 0.837 | 0.754 | 0.824 |
| Northern Minnesota and Ontario (212M) | 398 | 0.845 | 0.782 | 0.726 | 0.842 |
| Northern Minnesota Drift and Lake Plains (212N) | 514 | 0.762 | 0.759 | 0.704 | 0.818 |
| North Central Wisconsin Uplands (212Q) | 99 | 0.701 | 0.826 | 0.474 | 0.811 |
| Eastern Upper Peninsula (212R) | 293 | 0.848 | 0.782 | 0.667 | 0.797 |
| Northern Upper Peninsula (212S) | 207 | 0.829 | 0.837 | 0.781 | 0.772 |
| Northern Green Bay Lobe (212T) | 278 | 0.762 | 0.806 | 0.745 | 0.776 |
| Northern Highlands (212X) | 474 | 0.739 | 0.766 | 0.747 | 0.751 |
| Southwest Lake Superior Clay Plain (212Y) | 80 | 0.839 | 0.837 | 0.710 | 0.792 |
| Green Bay - Manitowac Upland (212Z) | 22 | 0.483 | 0.667 | 0.734 | 0.857 |
| South Central Great Lakes (222J) | 94 | 0.692 | 0.842 | 0.471 | 0.786 |
| Southwestern Great Lakes Morainal (222K) | 84 | 0.510 | 0.682 | 0.784 | 0.635 |
| North Central U.S. Driftless and Escarpment (222L) | 270 | 0.785 | 0.892 | 0.683 | 0.851 |
|
Minnesota and Northeast Iowa Morainal-Oak Savannah (222M) |
90 | 0.767 | 0.862 | 0.705 | 0.905 |
| Lake Agassiz-Aspen Parklands (222N) | 36 | 0.877 | 0.970 | 0.948 | 0.967 |
| Wisconsin Central Sands (222R) | 98 | 0.757 | 0.710 | 0.761 | 0.739 |
| Lake Whittlesey Glaciolacustrine Plain (222U) | 22 | 0.688 | 0.880 | 0.833 | 0.870 |
| North Central Glaciated Plains (251B) | 16 | 0.873 | 0.989 | 0.888 | 0.959 |
| South | 2,394 | 0.796 | 0.855 | 0.601 | 0.793 |
| Northern Cumberland Mountains (M221C) | 28 | 0.701 | 0.830 | 0.788 | 0.851 |
| Blue Ridge Mountains (M221D) | 166 | 0.729 | 0.886 | 0.670 | 0.829 |
| Northern Cumberland Plateau (221H) | 87 | 0.717 | 0.802 | 0.649 | 0.824 |
| Central Ridge and Valley (221J) | 71 | 0.706 | 0.841 | 0.404 | 0.837 |
| Interior Low Plateau-Highland Rim (223E) | 239 | 0.696 | 0.872 | 0.660 | 0.856 |
| Southern Appalachian Piedmont (231A) | 406 | 0.804 | 0.822 | 0.647 | 0.787 |
| Coastal Plains-Middle (231B) | 197 | 0.812 | 0.861 | 0.736 | 0.808 |
| Southern Cumberland Plateau (231C) | 97 | 0.650 | 0.784 | 0.499 | 0.794 |
| Southern Ridge and Valley (231D) | 132 | 0.807 | 0.816 | 0.702 | 0.737 |
| Coastal Plains-Loess (231H) | 54 | 0.607 | 0.890 | 0.561 | 0.814 |
| Gulf Coastal Plains and Flatwoods (232B) | 237 | 0.851 | 0.837 | 0.622 | 0.811 |
| Atlantic Coastal Flatwoods (232C) | 277 | 0.790 | 0.757 | 0.564 | 0.716 |
| Southern Atlantic Coastal Plains and Flatwoods (232J) | 365 | 0.865 | 0.830 | 0.528 | 0.692 |