Ecological Archives A022-033-A3

Kevin M. Potter and Christopher W. Woodall. 2012. Trends over time in tree and seedling phylogenetic diversity indicate regional differences in forest biodiversity change. Ecological Applications 22:517–531

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

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