Summary of covariate contributions to generalized additive models describing the effects of tuna mass and sampling year on prey mass per stomach and prey length.

Coefficient estimates (“estimate”), t-values, and p-values are given for each parametric coefficient. Estimated degrees of freedom (edf), F-values, and p-values are given for each smooth term.

针对每个参数系数，均给出了其系数估计值、t值与p值；针对每个平滑项，均给出了其估计自由度（estimated degrees of freedom，edf）、F值与p值。