Appendix 1.
GPS coordinates of each sampling location.
| Sampling location | Latitude (°N) | Longitude (°W) |
| A | 40.09 | 83.39 |
| B | 40.05 | 84.15 |
| C | 39.96 | 83.43 |
| D | 39.99 | 83.59 |
| E | 39.91 | 84.00 |
| F | 39.86 | 83.66 |
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