Table 1.

Number of aquatic and soil vOTUs and VCs in the PIGEON database, according to the source environments considered in this study

Dataset	vOTUs	Total VCs	VCs with > 1 vOTU	Singleton VCs (1 vOTU)	vOTUs in a VC	% Singleton VCs	% vOTUs in Singleton VCs
PIGEON aquatic and soil*	233,420	81,846	29,167	52,679	181,987	64	22
Marine	190,502	54,473	25,116	29,357	161,145	54	15
Freshwater	11,869	7910	3257	4653	7216	59	39
All soil	31,049	20,939	4415	16,524	13,626	79	53
SPRUCE**	4326	3114	921	2193	2133	70	51
Other peat	10,831	8414	1377	7037	3794	84	65
Other soil	15,892	10,391	2117	8274	7618	80	52

For each row, the number of viral populations (vOTUs), viral clusters (VCs) with more than one member, and singletons (both vOTUs and VCs with only one member), along with the corresponding percentages that they represent are presented

*Only marine, freshwater, and soil; not including vOTUs from human, other animal, plants or other systems (total PIGEON vOTUs across all environments = 266,125)

**All vOTUs recovered in the SPRUCE experimental plots and transect, including 160 vOTUs also recovered in other peat and 4 vOTUs also recovered in other soil