Table 1 Effects of the gut section (i.e. duodenum, jejunum and ileum), species (i.e. common nightingale and thrush nightingale), region (i.e. sympatry and allopatry) and the interaction between species and region on α-diversity indexes assessed by linear mixed models

From: Gut microbiota in two recently diverged passerine species: evaluating the effects of species identity, habitat use and geographic distance