Fig. 2From: Rock substrate rather than black stain alterations drives microbial community structure in the passage of Lascaux CaveBacterial and micro-eukaryotic abundances according to presence of black stains. Abundance data are shown as mean log number of 16S rRNA and 18S rRNA genes copies ± standard errors. Quantitative PCR analysis was performed in duplicate. Letters indicate post-hoc grouping according to significant differences between sample originBack to article page