Ecological Archives C006-065-A1
Kristin J. Painter, Cherie J. Westbrook, Britt D. Hall, Nelson J. O'Driscoll, and Timothy D. Jardine. 2015. Effects of in-channel beaver impoundments on mercury bioaccumulation in Rocky Mountain stream food webs. Ecosphere 6:194. http://dx.doi.org/10.1890/es15-00167.1
Appendix A. Tables showing environmental characteristics of streams sampled upstream and downstream of beaver impoundments in the study area and a Pearson correlation matrix of relationships between measured variables at sites upstream from beaver ponds.
Table A1. Environmental characteristics of streams sampled upstream (US) and downstream (DS) of beaver impoundments in the study area.
Site |
|
Lat |
Long |
Stream Width (m) |
Canopy Cover (%) |
pH |
Cond (µS/cm) |
Turb (NTU) |
Substrate Composition (%) |
||||||
bedrock |
boulder |
rock |
coble |
gravel |
sand |
mud |
|||||||||
BEV 012 |
US |
50.759 |
-115.264 |
8.0 |
0 |
8.20 |
203 |
1.5 |
0 |
0 |
0 |
40 |
50 |
10 |
0 |
DS |
50.758 |
-115.263 |
8.0 |
0 |
8.10 |
206 |
1.3 |
0 |
0 |
0 |
40 |
40 |
10 |
10 |
|
BEV 002 |
US |
51.318 |
-114.960 |
2.0 |
50 |
8.20 |
400 |
13.3 |
0 |
0 |
10 |
0 |
40 |
0 |
50 |
DS |
51.317 |
-114.958 |
2.0 |
25 |
8.30 |
207 |
10.3 |
0 |
0 |
20 |
0 |
30 |
20 |
30 |
|
BEV 004 |
US |
50.379 |
-114.668 |
3.0 |
0 |
8.00 |
312 |
0.2 |
0 |
0 |
10 |
40 |
10 |
0 |
40 |
DS |
50.378 |
-114.666 |
3.0 |
10 |
8.00 |
318 |
0.4 |
0 |
0 |
40 |
40 |
0 |
20 |
0 |
|
BEV 015 |
US |
51.051 |
-114.924 |
4.0 |
30 |
8.30 |
299 |
0.3 |
0 |
0 |
40 |
40 |
0 |
10 |
10 |
DS |
51.038 |
-114.868 |
3.0 |
10 |
7.90 |
305 |
8.1 |
0 |
0 |
40 |
10 |
10 |
0 |
40 |
|
BEV 028 |
US |
50.526 |
-114.930 |
2.0 |
10 |
8.10 |
244 |
0.1 |
0 |
0 |
30 |
30 |
10 |
10 |
20 |
DS |
50.523 |
-114.927 |
1.5 |
0 |
8.20 |
245 |
1.1 |
0 |
0 |
30 |
40 |
20 |
0 |
10 |
|
BEV 020 |
US |
50.865 |
-114.790 |
3.0 |
0 |
7.90 |
287 |
0.2 |
0 |
0 |
0 |
50 |
15 |
15 |
20 |
DS |
50.866 |
-114.787 |
2.5 |
10 |
8.10 |
293 |
1.2 |
0 |
0 |
30 |
30 |
30 |
10 |
0 |
|
BEV 021 |
US |
50.860 |
-114.795 |
5.0 |
10 |
8.10 |
298 |
1.0 |
0 |
0 |
20 |
30 |
30 |
10 |
10 |
DS |
50.862 |
-114.794 |
3.0 |
20 |
8.20 |
299 |
0.6 |
0 |
0 |
20 |
30 |
20 |
10 |
10 |
|
BEV 019 |
US |
50.803 |
-114.844 |
6.0 |
0 |
8.10 |
263 |
0.1 |
0 |
0 |
0 |
20 |
20 |
20 |
40 |
DS |
50.804 |
-114.842 |
3.0 |
0 |
8.20 |
262 |
0.9 |
0 |
0 |
10 |
40 |
30 |
10 |
10 |
|
BEV 024 |
US |
51.609 |
-115.161 |
2.5 |
10 |
8.30 |
392 |
2.9 |
0 |
0 |
10 |
30 |
30 |
15 |
15 |
DS |
51.609 |
-115.160 |
2.5 |
10 |
8.30 |
390 |
3.7 |
0 |
0 |
0 |
50 |
20 |
0 |
30 |
|
BEV 025 |
US |
51.610 |
-115.176 |
3.0 |
0 |
8.30 |
402 |
1.8 |
0 |
0 |
10 |
30 |
20 |
10 |
30 |
DS |
51.609 |
-115.170 |
2.0 |
0 |
8.20 |
406 |
2.8 |
0 |
0 |
10 |
30 |
30 |
10 |
20 |
|
BEV 027 |
US |
51.531 |
-115.099 |
3.0 |
0 |
8.10 |
168 |
5.4 |
0 |
0 |
10 |
45 |
35 |
10 |
0 |
DS |
51.531 |
-115.097 |
2.5 |
0 |
8.40 |
166 |
6.0 |
0 |
0 |
10 |
30 |
30 |
10 |
20 |
|
BEV 030 |
US |
50.789 |
-115.304 |
3.0 |
20 |
7.80 |
321 |
0.1 |
10 |
0 |
10 |
30 |
10 |
10 |
30 |
DS |
50.787 |
-115.299 |
4.0 |
0 |
7.80 |
302 |
1.3 |
0 |
0 |
20 |
50 |
10 |
0 |
20 |
|
BEV 026 |
US |
51.659 |
-115.292 |
3.5 |
0 |
7.90 |
354 |
1.1 |
0 |
5 |
20 |
30 |
30 |
10 |
5 |
DS |
51.659 |
-115.290 |
3.5 |
0 |
7.90 |
355 |
1.2 |
0 |
0 |
10 |
40 |
20 |
0 |
30 |
|
BEV 022 |
US |
51.478 |
-114.855 |
3.0 |
0 |
8.00 |
261 |
2.0 |
0 |
0 |
0 |
20 |
50 |
15 |
15 |
DS |
51.480 |
-114.853 |
4.0 |
0 |
7.80 |
259 |
3.9 |
0 |
0 |
0 |
40 |
30 |
15 |
15 |
|
BEV 010 |
US |
50.949 |
-115.126 |
9.0 |
0 |
7.90 |
326 |
0.1 |
0 |
0 |
5 |
60 |
20 |
10 |
5 |
DS |
50.951 |
-115.126 |
3.0 |
0 |
7.90 |
325 |
0.1 |
0 |
0 |
0 |
60 |
20 |
10 |
10 |
|
Table A2. Pearson correlation matrix of relationships between measured variables at sites upstream from beaver ponds. Top values are correlation coefficients (ρ) and bottom italicised values are probabilities (p-values; significant relationships in bold).
|
Water |
Periphyton |
Herbivore |
Predator |
TP |
TN |
pH |
Conductivity |
Turbidity |
DOC |
Benthic |
Invertebrate Biomass |
Water MeHg |
1.00 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||
Periphyton MeHg |
0.38 |
1.00 |
|
|
|
|
|
|
|
|
|
|
0.165 |
|
|
|
|
|
|
|
|||||
Herbivore MeHg |
0.64 |
0.64 |
1.00 |
|
|
|
|
|
|
|
|
|
0.014 |
0.014 |
|
|
|
|
|
|
|
||||
Predator MeHg |
-0.02 |
0.82 |
0.81 |
1.00 |
|
|
|
|
|
|
|
|
0.964 |
0.006 |
0.014 |
|
|
|
|
|
|
|
|||
TP |
0.53 |
0.69 |
0.63 |
0.46 |
1.00 |
|
|
|
|
|
|
|
0.041 |
0.004 |
0.016 |
0.209 |
|
|
|
|
|
|
|
||
TN |
0.50 |
0.40 |
0.56 |
0.47 |
0.77 |
1.00 |
|
|
|
|
|
|
0.055 |
0.137 |
0.039 |
0.200 |
0.001 |
|
|
|
|
|
|
|
|
pH |
0.11 |
0.23 |
0.03 |
0.29 |
0.62 |
0.57 |
1.00 |
|
|
|
|
|
0.691 |
0.406 |
0.921 |
0.442 |
0.014 |
0.027 |
|
|
|
|
|
|
|
Conductivity |
0.06 |
-0.22 |
0.18 |
0.26 |
0.02 |
0.26 |
0.06 |
1.00 |
|
|
|
|
0.834 |
0.438 |
0.535 |
0.502 |
0.934 |
0.341 |
0.830 |
|
|
|
|
|
|
Turbidity |
0.55 |
0.44 |
0.63 |
0.29 |
0.81 |
0.71 |
0.50 |
0.05 |
1.00 |
|
|
|
0.033 |
0.098 |
0.015 |
0.445 |
<0.001 |
0.003 |
0.061 |
0.853 |
|
|
|
|
|
DOC |
0.59 |
0.64 |
0.71 |
0.66 |
0.86 |
0.81 |
0.42 |
0.22 |
0.71 |
1.00 |
|
|
0.022 |
0.011 |
0.004 |
0.055 |
<0.001 |
<0.001 |
0.124 |
0.442 |
0.003 |
|
|
|
|
Benthic Chl a |
-0.24 |
-0.09 |
-0.16 |
0.23 |
-0.42 |
-0.26 |
-0.18 |
-0.03 |
-0.56 |
-0.41 |
1.00 |
|
0.387 |
0.758 |
0.594 |
0.557 |
0.118 |
0.358 |
0.513 |
0.922 |
0.029 |
0.126 |
|
|
|
Invertebrate Biomass |
0.07 |
0.30 |
0.14 |
0.74 |
0.09 |
0.12 |
0.25 |
-0.04 |
0.07 |
-0.02 |
0.32 |
1.00 |
0.795 |
0.282 |
0.643 |
0.022 |
0.746 |
0.679 |
0.374 |
0.899 |
0.810 |
0.934 |
0.242 |
|