Species analysis   Statistical exploration   Classification trees   Variables  

Hutton's Vireo
Occurred the most disproportionately in southwestern Oregon hexagons, and in northwestern Oregon hexagons with elevation (hex. avg.) of 41-1158 ft. At the eastern margin of its Oregon range, it was associated mainly with hexagons having an annual precipitation of more than 1987 mm. The logistic regression analysis showed positive or negative association with the extent of public land and sagebrush steppe.

Classification trees
Hexagons: using ONHP land cover classification (accuracy score: 98.60)
Squares: using ONHP land cover classification (accuracy score: 94.52)
Hexagons: using AVHRR land cover classification (accuracy score: 98.60)