Table 2.
The bias in amphibian species occurrence data for several European countries extracted from GBIF (downloaded on January 30, 2013).<br/>
| Country | GBIF records | Country area (km2) | Average number of records per 100 km2 |
|---|---|---|---|
| Luxembourg | 8119 | 2666.7 | 304.461 |
| United Kingdom | 101305 | 260565.6 | 38.878 |
| Spain | 37764 | 544571.2 | 6.934 |
| France | 24928 | 570427.7 | 4.370 |
| Poland | 6753 | 314347.5 | 2.148 |
| Hungary | 160 | 93374.6 | 0.171 |
| Romania | 293 | 237318.9 | 0.123 |
| Ukraine | 737 | 600856.2 | 0.122 |
| Turkey | 452 | 794961.2 | 0.056 |
| Greece | 61 | 133552.6 | 0.045 |