Performance summary of the GAMs computing the effects of the <i>Input Cost / ha</i> (IC/ha) intensity indicator on the four bird community descriptors.

n = 332 points for all models; test statistic = F for IC/ha and t for other variables; CSI: community specialisation index, CTI: community trophic index, CSIg = grassland specialisation index of the community; * p-value < 0.05, ** p-value < 0.01, *** p-value < 0.001 Performance summary of the GAMs computing the effects of the Input Cost / ha (IC/ha) intensity indicator on the four bird community descriptors.