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Table 4 F tests and AIC values for larval traits from mixed model analyses of variance including single environmental variables as a covariate.

From: Adaptive divergence of the moor frog (Rana arvalis) along an acidification gradient

  a) Mass b) Larval period c) Growth rate
  F AIC P 100× Log(b) 100× SE   F AIC P 100× Log(b) 100× SE   F AIC P 100× Log(b) 100× SE
pH 4.3                  
Pond pH 18.5 -799 0.006 -3.45 0.81   3.4 -1407 0.114 -1.66 0.90   4.9 -670 0.066 -1.88 0.85
Latitude 10.7 -795 0.014 -0.90 0.27   8.0 -1407 0.028 -0.59 0.21   1.3 -665 0.299 -0.32 0.29
Predator density 2.5 -791 0.175 0.90 0.57   0 -1403 0.904 0.06 0.48   10.5 -672 0.002 0.89 0.28
Canopy cover 0.2 -786 0.685 0.05 0.12   2.5 -1402 0.171 0.11 0.07   0.6 -662 0.479 -0.06 0.08
Altitude 0.8 -783 0.407 -0.02 0.02   6.0 -1400 0.053 -0.03 0.01   0.4 -659 0.571 0.01 0.01
Volume 0.8 -763 0.410 0 0   0.4 -1376 0.555 0 0   0.4 -638 0.550 0 0
Larval density 3.8 -793 0.100 -1.16 0.59   2.3 -1405 0.183 -0.68 0.45   1.1 -666 0.343 0.50 0.48
Temperature 0 -792 0.994 -0.02 2.66   0.6 -1406 0.469 1.35 1.74   0.7 -669 0.422 -1.49 1.75
pH 7.5                  
Pond pH 18.4 -892 0.007 -3.96 0.92   7.4 -1417 0.034 -2.53 0.93   2.9 -793 0.142 -1.50 0.87
Latitude 9.8 -887 0.022 -1.02 0.32   14.9 -1417 0.008 -0.80 0.21   0.5 -789 0.499 -0.21 0.29
Predator density 0.5 -882 0.496 0.56 0.78   0.1 -1411 0.820 0.14 0.60   1.6 -790 0.272 0.49 0.39
Canopy cover 0.2 -878 0.646 0.07 0.14   1.7 -1409 0.241 0.12 0.09   0.5 -756 0.496 -0.06 0.08
Altitude 0.9 -875 0.390 -0.02 0.02   5.6 -1408 0.059 -0.03 0.01   0.6 -782 0.486 0.01 0.01
Volume 0.6 -855 0.457 0 0   0.5 -1384 0.503 0 0   0.2 -762 0.657 0 0
Larval density 3.5 -885 0.112 -1.33 0.71   3.2 -1413 0.127 -0.95 0.53   0.6 -790 0.454 -0.38 0.48
Temperature 0.1 -884 0.794 0.85 3.09   1.6 -1415 0.257 2.55 2.02   1.3 -793 0.299 -1.81 1.60
  1. Results are shown for a) metamorphic mass, b) larval period and c) growth rate. Significant effects (P < 0.05) are highlighted in bold. The variable with the highest F value (and the lowest AIC value) is considered most important.