Table 1. Comparison of features around 94 sites occupied by great bustards and 10,000 random points.
Values are means ± standard deviations.
| Layer | Variable | Description | Bustard sites | Random points |
|---|---|---|---|---|
| 1 | Distance to pool | Distance to pool in meter | 1,179.0 ± 734.5 | 1,378.0 ± 910.3 |
| 2 | Distance to river | Distance to river in meter | 2,302.0 ± 1,751.2 | 2,630.0 ± 2,483.0 |
| 3 | Distance to residential | Distance to residential in meter | 935.0 ± 586.8 | 980.2 ± 723.8 |
| 4 | Distance to national road | Distance to national road in meter | 5,280.0 ± 4,234.2 | 5,855.0 ± 4,036.9 |
| 5 | Distance to provincial road | Distance to provincial road in meter | 8,730.0 ± 5,928.7 | 9,217.0 ± 6,112.4 |
| 6 | Distance to expressway | Distance to expressway in meter | 10,010 ± 5,750.0 | 9,585.0 ± 6,666.7 |
| 7 | Distance to farmland road | Distance to farmland road in meter | 477.4 ± 385.3 | 524.9 ± 455.8 |
| 8 | Distance to ditch | Distance to ditch in meter | 1,522.0 ± 1,722.7 | 2,120.0 ± 2,078.1 |
| 9 | Area of farmland | Area of farmland in kilometers | 3.3 ± 3.2 | 5.3 ± 6.2 |
| 10 | MNNDVI | The average value of the normalized difference vegetation index from November, 2013 to March, 2014 | 0.14 ± 0.04 | 0.13 ± 0.05 |
| 11 | MAXNDVI | The maximum value of the normalized difference vegetation index from November, 2013 to March, 2014 | 0.23 ± 0.06 | 0.21 ± 0.07 |