Gut microbiome of century-old snail specimens stable across time in preservation

Table 1 Metadata from all snail samples

	GPS coordinates (estimated pre-2018)	Year collected	Palmer drought index	Estimated elevation (in ft):	Average microbial richness ± standard deviation	Total snails
Mountain Research Station (MRS)	40.0314420, − 105.5394289	2018	Severe drought	9675	483.36 ± 386.15	15
Vail	39.6449151, − 106.3146577	2018	Extreme drought	8353	492.84 ± 174.17	34
Frisco	39.5752723, − 106.1181343	2018	Extreme drought	9298	425.36 ± 277.72	8
Steamboat Springs (2004)	40.4817935, − 106.8245969	2004	Severe drought	6505	315.91 ± 193.95	13
Glen Eden	40.748779, − 106.843133	2004	Severe drought	7513	288.29 ± 64.13	7
Silverthorne	39.8356, − 106.31891	2003	Mid-range	8586	493.33 ± 376.47	3
Pagoda	40.321214, − 107.344139	2000	Severe drought	7008	122.50 ± 15.56	2
Redstone	39.199847, − 107.232233	1982	Very moist	7159	379.89 ± 119.12	9
Telluride	37.934889, − 107.799037	1982	Very moist	8809	459.25 ± 286.37	4
Steamboat Springs (1980)	40.472242, − 106.873814	1980	Mid-range	8192	231.50 ± 19.09	2
Rifle	39.727398, − 107.68823	1974	Moderate drought	9583	592.50 ± 422.56	4
Glenwood Springs	39.577612, − 107.369814	1974	Moderate drought	6141	496.18 ± 158.64	11
Boulder	39.929963, − 105.293328	1920	Moderately moist	6237	245.33 ± 152.53	3