Table 1 Conservation status of three Eurasian GWFG populations in summering, wintering and stopover sites during migration night, the percentage of home range distributed in protected area (the national nature reserves data are used in China, World Database on Protected Areas data set is used outside China)
Population | Item | Summer | Autumn_inRUS | Autumn_outRUS | Winter | Spring_outRUS | Spring_inRUS | Total |
|---|---|---|---|---|---|---|---|---|
North Sea-Baltic population (N = 18) | Protected range (km2) | 631 | 201 | 235 | 4190 | 1867 | 169 | 7294 |
Home range (km2) | 2692 | 2046 | 591 | 10,946 | 7498 | 2391 | 26,165 | |
Percentage (%) | 23 | 10 | 40 | 38 | 25% | 7 | 28 | |
Duration (day) | 2077 | 899 | 133 | 4214 | 735 | 830 | 8888 | |
East Asia Continental population (N = 16) | Protected range (km2) | 5583 | 4 | 1550 | 1031 | 3824 | 565 | 12,557 |
Home range (km2) | 8383 | 12 | 4799 | 1994 | 15,165 | 1057 | 31,410 | |
Percentage (%) | 67 | 35 | 32 | 52 | 25 | 53 | 40 | |
Duration (day) | 2292 | 14 | 490 | 2931 | 1056 | 308 | 7091 | |
West Pacific population (N = 44) | Protected range (km2) | 3885 | 19 | 934 | 1250 | 4928 | 267 | 11,282 |
Home range (km2) | 10,314 | 1645 | 1543 | 7200 | 11,362 | 1421 | 33,486 | |
Percentage (%) | 38 | 1 | 61 | 17 | 43 | 19 | 34 | |
Duration (day) | 3996 | 273 | 712 | 5368 | 783 | 231 | 11,363 |