Table 2.
Metal levels (ng/g = ppb dry weight) in feathers of adult common eider and adult tufted puffin collected from Amchitka and Kiska
| Feathers Common eider | Amchitka n = 13 | Kiska n = 13 | Kruskal–Wallis χ2 (p) |
|---|---|---|---|
| Arsenic | 126 ± 25.3 101 |
151 ± 26.1 114 |
0.8 (NS) |
| Cadmium | 80.9 ± 6.0 77.5 |
78.6 ± 5.4 76.4 |
0.6 (NS) |
| Chromium | 103 ± 30.3 14.8 |
242 ± 92.9 81.0 |
1.5 (NS) |
| Lead | 832 ± 212 653 |
1154 ± 151 1050 |
4.8 (0.03) |
| Manganese | 2560 ± 440 1990 |
1177 ± 154 1070 |
4.8 (0.03) |
| Mercury | 846 ± 143 659 |
834 ± 84.9 776 |
0.3 (NS) |
| Selenium | 868 ± 132 722 |
888 ± 123 741 |
0.1 (NS) |
|
| |||
| Tufted puffin | n = 22 | n = 17 | |
|
| |||
| Arsenic | 161 ± 39.8 20.9 |
103 ± 27.8 9.8 |
0.8 (NS) |
| Cadmium | 103 ± 20.1 66.6 |
51.4 ± 11.3 33.1 |
3.7 (0.05) |
| Chromium | 2040 ± 342 1590 |
1520 ± 284 1280 |
0.2 (NS) |
| Lead | 926 ± 423 29.6 |
1680 ± 550 525 |
5.7 (0.02) |
| Manganese | 696 ± 83.4 601 |
527 ± 74.9 452 |
2.1 (NS) |
| Mercury | 2590 ± 290 2020 |
2480 ± 254 2260 |
0.1 (NS) |
| Selenium | 6580 ± 523 5910 |
6620 ± 424 6390 |
0.0 (NS) |
Note: For each metal, the first row provides the arithmetic mean ± standard error and the second row provides geometric means. Comparison with Kruskal–Wallis nonparametric ANOVA yielding chi square statistics and p values. All entities are rounded to three significant figures