highly significantP = 0.001
This model confirms that the effect of body mass depends on season, where the curvature in early season is highly significant (GAM; edf = 3.999, Ref. df. = 5.008, F = 5.600, P = 0.001, Fig 6 ), while it is non-significant in the late season (GAM; edf = 0.667, Ref. df. = 0.667, F = 0.515, P = 0.558, Fig 6 ).