Table 1 Results of univariate linear mixed models of each developmental trait with population as random variable (N = 47–86/population and 5–24/population in low-density and high-density, respectively).
From: Ecological adaptation drives wood frog population divergence in life history traits
Response | Predictor | Estimate (+SE) | df | t-value | P value |
|---|---|---|---|---|---|
Larval period (days) | Intercept | 1973.381 (27.900) | 956.2 | 70.732 | <0.001 |
Suitability × density | 5.802 (3.070) | 998.8 | 1.890 | 0.059 | |
Suitability | −44.834 (10.619) | 11.1 | −4.222 | 0.001 | |
Density | −0.133 (1.378) | 999.3 | −0.096 | 0.923 | |
Temperature | −123.322 (1.800) | 1007.9 | −68.525 | <0.001 | |
Weight (g) | Intercept | 6.968 (0.437) | 975.1 | 15.942 | <0.001 |
Suitability × density | 0.371 (0.049) | 1000.2 | 7.607 | <0.001 | |
Suitability | −0.437 (0.022) | 11.3 | −3.913 | 0.002 | |
Density | −0.414 (0.028) | 1001.3 | −19.957 | <0.001 | |
Temperature | 0.371 (0.049) | 1001.3 | −14.554 | <0.001 | |
Growth (mg/day) | Intercept | −19.932 (4.741) | 976.1 | −4.204 | <0.001 |
Suitability × density | 4.124 (0.529) | 1000.2 | 7.796 | <0.001 | |
Suitability | −2.201 (1.147) | 11.3 | −1.918 | 0.081 | |
Density | −5.039 (0.237) | 1001.2 | −21.226 | <0.001 | |
Temperature | 1.787 (0.308) | 1003 | 5.792 | <0.001 | |
Femur–SVL ratio | Intercept | 0.420 (0.152) | 757.2 | 2.766 | 0.006 |
Suitability × density | 1.1 × 10−4 (0.002) | 1005 | 0.006 | 0.995 | |
Suitability | −0.075 (0.020) | 12.64 | −3.818 | 0.002 | |
Density | −0.042 (0.008) | 1007 | −5.359 | <0.001 | |
Temperature | 0.006 (0.009) | 769.9 | 0.617 | 0.537 |
