Table 3.
Mean abundance by lake type and relationships between chemistry variables for ASVs identified as significantly (p < 0.05) contributing to at least 70% of the early summer community dissimilarity between alpine and subalpine lakes.
| Lowest taxonomic resolution | Mean no. reads Visit 1 |
DOC | pH | chl-a | TDN | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Alpine | Subalpine | Visit 1 | Visit 2 | Visit 1 | Visit 2 | Visit 1 | Visit 2 | Visit 1 | Visit 2 | ||
| Alpine-associated ASVs | |||||||||||
|
Acinetobacter bereziniae ASV_288 |
17.87 | 0 | 0.003* r = −0.70 |
- | - | - | - | - | - | - | |
| Oxalobacteraceae ASV_250 |
24.63 | 3.38 | 0.023* r = −0.56 |
- | - | - | - | - | 0.042*r = −0.48 | - | |
|
Flavobacterium sp. ASV_122 |
49.88 | 4.38 | 0.058 | - | - | - | - | - | 0.073 | - | |
|
Piscinibacter sp. ASV_74 |
67.35 | 21.75 | 0.027* r = −0.55 |
- | - | - | - | 0.004* r = 0.67 |
- | - | |
|
Caulobacter sp. ASV_47 |
102.63 | 35.88 | 0.017* r = −0.59 |
- | 0.033* r = −0.54 |
0.010* r = −0.63 |
- | - | 0.014*r = −0.60 | - | |
|
Pedobacter sp. ASV_82 |
88.0 | 8.5 | 0.002* r = −0.71 |
- | - | - | - | 0.058 | - | - | |
| NS11-12 marine group ASV_20 |
151.0 | 31.38 | 0.024* r = −0.56 |
0.021* r = −0.57 |
- | - | - | - | - | - | |
| Subalpine-associated ASVs | |||||||||||
|
**Microtrichales ASV_131 |
4.13 | 25.63 | - | 0.073 | - | 0.020* r = −0.58 |
- | - | - | - | |
| NS9 marine group ASV_100 |
0 | 32.38 | 0.010* r = 0.62 |
- | - | - | - | - | - | - | |
|
Polynucleobacter asymbioticus ASV_4 |
149.25 | 308.38 | - | - | - | - | - | - | - | - | |
|
Pseudarcicella sp. ASV_1 |
295.88 | 752.25 | - | - | - | - | < 0.001* r = −0.75 |
- | - | - | |
ASV_131, the member of Microtrichales, was the only ASV to not also be correlated to lake type (p > 0.05, Kruskal-Wallis rank sum test).
Also included are the mean number of reads per lake type on the early summer visit (Visit 1) and the p values and correlation coefficients for select chemistry variables. The chemistry variables shown include those that were found to significantly contribute to community dissimilarity (through envfit analysis) and include dissolved organic carbon (DOC), pH, chlorophyll-a (chl-a), and total dissolved nitrogen (TDN). Values of p < 0.1 are noted and those with *significant values at the p < 0.05 level are starred and printed in red.