Table 1 Location, landscape characteristics and number of data points of the four main study sites in the Netherlands and the additional sites in the Netherlands, Switzerland (CH) and France (FR), used for the landscape metrics analysis across Western Europe
Location | Country | Latitude | Longitude | Water surface area (ha) | Number of water bodies | Total shore length (km) | Number of individual mallards | Number of duck days |
|---|---|---|---|---|---|---|---|---|
Oud Alblas (OA) | NL | 51.876505 | 4.723755 | 74.3 | 1335 | 362.5 | 73 | 1240 |
Terra Nova (TN) | NL | 52.215404 | 5.040708 | 410.9 | 714 | 158.5 | 9 | 155 |
Juliusput (JP) | NL | 52.159681 | 5.478855 | 56.2 | 1306 | 212.3 | 11 | 144 |
Enterveen (EV) | NL | 52.278374 | 6.558803 | 29.4 | 596 | 115.7 | 4 | 85 |
Hendrik-Ido-Ambacht | NL | 51.825879 | 4.647395 | 100.8 | 580 | 102.6 | 1 | 26 |
Almelo | NL | 52.381949 | 6.625596 | 45.9 | 681 | 137.7 | 1 | 7 |
Ron | CH | 47.172433 | 8.016636 | 18.6 | 25 | 40.1 | 1 | - |
Oberkirch | CH | 47.162236 | 8.122171 | 768.4 | 79 | 66.2 | 8 | - |
Seine | FR | 49.445392 | 0.372438 | 650.0 | 160 | 137.4 | 33 | - |
Brenne | FR | 46.749784 | 1.233226 | 632.7 | 61 | 87.8 | 40 | - |