Table S3. ANOVA results for the b parameter (which denotes the shape of the temperature response curve) of Acer rubrum, Betula papyrifera, and Populus tremuloides measured in 2009, 2010, and 2011. Site, year, campaign, species, overstory condition, warming treatment, and all 2and 3-way interactions were the sources of variance. Source Site Year Campaign Species Habitat Warming Site*Year Site*Campaign Site*Species Site*Habitat Site*Warming Year*Campaign Year*Species Year*Habitat Year*Warming Campaign*Species Campaign*Habitat Campaign*Warming Species*Habitat Species*Warming Habitat*Warming Site*Year*Campaign Site*Year*Species Site*Year*Habitat Site*Year*Warming Site*Campaign*Species Site*Campaign*Habitat Site*Campaign*Warming Site*Species*Habitat Site*Species*Warming Site*Habitat*Warming Year*Campaign*Species Year*Campaign*Habitat Year*Campaign*Warming Year*Species*Habitat Year*Species*Warming Year*Habitat*Warming Campaign*Species*Habitat Campaign*Species*Warming Campaign*Habitat*Warming Species*Habitat*Warming Nparm DF DFDen F Ratio Prob > F 1 2 2 2 1 1 2 2 2 1 1 4 4 2 2 4 2 2 2 2 1 4 4 2 2 4 2 2 2 2 1 8 4 4 4 4 2 4 4 2 2 1 2 2 2 1 1 2 2 2 1 1 4 4 2 2 4 2 2 2 2 1 4 4 2 2 4 2 2 2 2 1 8 4 4 4 4 2 4 4 2 2 39.01 486.4 488.6 478.2 42.52 37.36 489.8 488.1 478.1 41.39 35.77 486.8 481.1 487.9 488.6 483.6 485.9 485.9 480.2 483.2 38.94 485.8 481.5 489 487.7 481.1 487.1 485.2 475.1 475.7 37.82 479.4 489.1 489.6 482.1 481.4 487.8 482.6 480.9 487.6 474.7 19.1078 9.4439 9.5484 55.2095 34.2949 7.5755 3.1884 7.8866 0.4711 0.0522 0.9215 3.6539 4.4825 1.9929 1.0164 1.0428 1.8141 0.4870 6.4307 0.2831 2.9224 6.3851 1.5059 0.4081 2.0932 0.6582 1.3435 1.5002 3.3954 0.1037 6.3861 2.1195 2.5985 1.4979 2.3246 4.3321 1.3010 0.7079 0.0888 0.2549 3.4186 <.0001* <.0001* <.0001* <.0001* <.0001* 0.0091* 0.0421* 0.0004* 0.6246 0.8204 0.3435 0.0060* 0.0015* 0.1374 0.3626 0.3846 0.1641 0.6147 0.0018* 0.7536 0.0953 <.0001* 0.1992 0.6651 0.1244 0.6213 0.2619 0.2241 0.0343* 0.9015 0.0158* 0.0326* 0.0356* 0.2016 0.0556 0.0019* 0.2732 0.5868 0.9859 0.7751 0.0336*