Fig. 1

Development of AAP community structure. Principal component analysis of centered log-ratio transformed AAP community composition. Each point represents a sample with 0.5 m (red circle), 2 m (orange triangle), 5 m (green square) and 8 m (blue cross) in PC1 and PC2 axis (A) and 0.5 m (circle), 2 m (triangle), 5 m (square) and 8 m (cross) coloured according to the date of sampling in PC1 and PC3 axis (B). Dashed line and arrows in panel A indicate AAP community succession following an annual chronological direction