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Table 1 Parametric components (estimated parameters, standard errors, t -values and P -values) of the generalized additive model analysis on factors affecting Zugunruhe

From: Melatonin reduces migratory restlessness in Sylvia warblers during autumnal migration

  Estimate Std. error t value P
(Intercept) -1.456 0.312 -4.669 <0.001
Species -0.519 0.281 -1.850 0.068
Melatonin treatment -0.596 0.253 -2.355 0.021
Food treatment -0.448 0.257 -1.746 0.085
Fat 1 0    
Fat 2 1.279 0.370 3.459 <0.001
Fat 3 1.455 0.386 3.771 0.006
Fat 4 1.272 0.450 2.827 0.021
  1. The model was fitted by using a quasi-Poisson distribution with log-link function and a Generalized Cross-Validation criterion (GCV) as model optimizer. In the model a fat score of 1 served as the baseline level to which the other fat score levels were compared to.
  2. adjusted R2 = 0.168 (expl. deviance = 22.5%), GCV score = 0.478, N = 88.