Table 1. Results of hurdle count models to explain meadow pipit and chiffchaff distribution in wintering grounds of the Iberian Peninsula and the Maghreb.
| Zero hurdle model | Count model | |||||||
|---|---|---|---|---|---|---|---|---|
| Meadow pipit | Chiffchaff | Meadow pipit | Chiffchaff | |||||
| Estimate | P | Estimate | P | Estimate | P | Estimate | P | |
| Intercept | -18.15 | <0.001 | 7.47 | 0.206 | -16.15 | 0.004 | -13.98 | <0.001 |
| Lat. | - | - | -0.49 | <0.001 | 0.20 | 0.013 | - | - |
| Lon. | 1.17 | <0.001 | 2.46 | 0.003 | 0.54 | 0.009 | - | - |
| Lat. x Lon. | -0.04 | <0.001 | -0.07 | 0.003 | - | - | - | - |
| Temperature | 3.54 | <0.001 | 3.95 | <0.001 | - | - | 6.78 | <0.001 |
| Prec. season. | - | - | - | - | -2.41 | 0.280 | - | - |
| Precipitation | 3.37 | <0.001 | - | - | 4.25 | <0.001 | - | - |
| Grass | 0.92 | <0.001 | - | . | 0.61 | 0.041 | 0.87 | <0.001 |
| Woodland | -1.49 | <0.001 | 0.92 | <0.001 | - | - | - | - |
Zero hurdle models show the features related to the occupancy of species and count models the features affecting abundance.