Fig. 4From: Cloacal swabs and alcohol bird specimens are good proxies for compositional analyses of gut microbial communities of Great tits (Parus major)Average (a) OTU richness, (b) Chao 1 richness estimates, (c) Shannon’s diversity index and (d) Inverse Simpson’s diversity index of different digestive tract regions of fresh, two-weeks old and two-months old alcohol specimens. Letters above bars indicate the results of Tukey post hoc tests with identical letters representing groups that were not significantly differentBack to article page