From: Mapping the risk of avian influenza in wild birds in the US
Effect | Est. | Std. Err. | t-value (df = 132) | p |
---|---|---|---|---|
Intercept | -3.279 | 0.58 | -5.65 | <.0001 |
First day of the year free of ice or snow Range: 0 (snow-free) to day of the year 150 | -0.0282 | 0.0116 | -2.43 | 0.0164 |
Minimum temperature Range: -7.15 to 19.67°C | -0.2143 | 0.0734 | -2.92 | 0.0041 |
Percent harvested cropland per county: Range: 0-100 | 0.0433 | 0.00951 | 4.56 | <.0001 |