Table 1 Description of habitat variables (mean ± standard deviation), measured on each 1 × 1 km2, included in occurrence probability models of female little bustards in the Plana de Lleida (2009–2013)
Variable | Description | Source | Mean ± SD |
|---|---|---|---|
Alfalfa | Proportion of alfalfa | SIGPAC and DUN | 0.11 ± 0.10 |
Corn stb. | Proportion of corn stubble/plow | SIGPAC and DUN | 0.15 ± 0.15 |
D. cereal stb. | Proportion of cereal stubble/plow in dryland | SIGPAC and DUN | 0.09 ± 0.20 |
I. cereal stb. | Proportion of cereal stubble/plow in irrigated land | SIGPAC and DUN | 0.11 ± 0.10 |
Orchards | Proportion of orchards | SIGPAC | 0.24 ± 0.19 |
Roads | Proportion of roads | SIGPAC | 0.01 ± 0.02 |
Terrain slope | Standard deviation of elevation (m) | DEM (15 × 15 m pixel) | 6.58 ± 4.80 |
Urban areas | Proportion of urban areas | SIGPAC | 0.03 ± 0.11 |