Fig. 4

Diversity of microbiota in different sections of the gut. (a) Ordination of individual samples with principal coordinate analysis (PCoA) of Bray–Curtis distance. (b) Box plot showing the dispersion of samples in different gut sections measured as distance from centroid. (c) Microbiota richness in different gut sections measured with the indicator Observed taxa. (d) Microbiota alpha diversity in different gut sections as measured with the Shannon diversity index. Oes = Oesophagus, Pro = Proventriculus, Gizz = Gizzard, Duo = Duodenum, Jej = Jejunum, Ile = Ileum, Cae = Caecum, Col = Colon