Table 1. Summary of 16S rRNA gene sequencing of beaver ceacum and feacal samples for bacterial and archaeal diversity analysis.

Sample	Location	Reads (Total)	Reads (Unique)	Observed OTUs*	Choa1*	Phylogenetic Diversity*
Bacterial Diversity
Male 1	ceacum	46139	1531	1465	1614	38.1
Male 1	feaces	39284	1440	1446	1590	37.8
Male 2	ceacum	40887	1471	1450	1628	37.7
Male 2	feaces	50937	1518	1489	1614	38.2
Female 1	ceacum	41073	1506	1446	1598	37.3
Female 1	feaces	52784	1549	1400	1634	36.2
Female 2	ceacum	48632	1539	1413	1619	36.9
Female 2	feaces	33993	1489	1417	1631	37.0
Archaeal Diversity
Male 1	ceacum	168809	183	151	196	4.88
Male 1	feaces	78041	161	131	174	4.14
Male 2	ceacum	66616	118	101	131	3.63
Male 2	feaces	72143	135	113	151	4.26
Female 1	ceacum	97907	159	132	185	4.59
Female 1	feaces	76270	193	172	229	5.11
Female 2	ceacum	29361	107	100	118	3.59
Female 2	feaces	70642	187	181	213	5.15

*Bacterial diversity comparisons were carried out after randomly subsampling 33993 sequences to ensure an equal number of reads were used in all subsequent analysis. Archaeal sequences were similarly subsampled to 29361.