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Table 3 Selective parameters of major habitat factors for foraging habitats

From: Foraging habitat selection of overwintering Black-necked Cranes in the farming area surrounding the Caohai Wetland, Guizhou Province, China

FactorsIPiRiWiEiPreference
Slope aspectShady slope0.4000.3470.867− 0.106R
Sunny slope0.3600.2650.737− 0.186R
Semi-sunny slope0.2400.3881.6160.202S
Distance to road (m)<500.3890.3880.998− 0.002R
50–1000.3030.3471.1450.067S
>1000.3090.2650.860− 0.076R
Distance to settlement (m)<1000.2630.0310.116− 0.773NP
100‒5000.3890.5921.5230.253S
>5000.3490.3781.0830.088R
Tillage methodsYes0.6570.5310.807− 0.148R
No0.3430.4691.3690.114S
Crop remains (g/m2)<1000.4860.3060.630− 0.299NP
100‒5000.3660.4491.2280.025R
>5000.1490.2451.6480.170S
  1. R random choice, S normal choice, SP highly positive choice, NP tending to avoid