Species analysis
Statistical exploration
Classification trees
Variables
Common Raven
Widespread, but less likely to occur among hexagons with June
minimum temperature (hex. med.) of 20� C and with 58-198 miles of
road per sq. mi. The logistic regression analysis showed weak positive
or negative association with wetlands and wet shrubland and road
density.
Classification trees
Hexagons: using ONHP land cover classification (accuracy score: 98.60)
Squares: using ONHP land cover classification (accuracy score: 80.21)
Hexagons: using AVHRR land cover classification (accuracy score: 98.60)
