Table 5. Numbers of viable bacteria in Chad sand samples estimated by culture-dependent methods.

# Bacteria (CFU g−1)
	C1	C2	C3	C4	C5	C6	C7	C8	C9
Total # OTU	9 × 102	5.4 × 103	2.2 × 106	7.4 × 104	2.2 × 104	1.5 × 105	1.2 × 105	3.6 × 105	5.4 × 105
# Total spores	2.8 × 101	2.8 × 101	2.2 × 105	2 × 104	6.2 × 103	1.2 × 103	7 × 102	1.9 × 103	5.6 × 102
% spores	3.1	0.5	10.0	27.0	28.2	0.8	0.6	0.5	0.1
# OTU identified	5	7	13	8	10	10	16	5	6
Location	Bardaï	Bahaï	Bardaï Wadi I	Bahaï Wadi II	Oure Cassoni	Ourba	Iriba	Ourba	Ourba

Abbreviation: OTU, operational taxonomic unit.