Species analysis
Statistical exploration
Classification trees
Variables
Burrowing Owl
Occurred the most disproportionately in hexagons with more than 38%
big sagebrush shrubland and July maximum temperature (hex. avg.) of
27-33� C and no mixed conifer forest (Northeast Oregon) present.
Present in some hexagons with less big sagebrush shrubland (6-37%) if
July minimum temperature (hex. med.) is 8-15� C. The logistic
regression analysis showed positive or negative association with April
maximum temperature (hex. avg.), July maximum temperature (hex.
avg.), the extent of public land, and-to a lesser degree-barren,
topographic variation, and road density.
Classification trees
Hexagons: using ONHP land cover classification (accuracy score: 91.86)
Squares: using ONHP land cover classification (accuracy score: 95.83)
Hexagons: using AVHRR land cover classification (accuracy score: 90.70)
