Species analysis
Statistical exploration
Classification trees
Variables
Long-eared Owl
In eastern Oregon, it occurred the most disproportionately in hexagons
with any area of lakes/reservoirs. In central Oregon, it occurred mostly
in hexagons with more than 8% bitterbrush - big sagebrush shrubland.
In southwestern Oregon, it occurred mostly in hexagons with a
relatively cool (for that region), July minimum temperature (hex. max.)
of 10-11� C. The logistic regression analysis showed weak positive or
negative association with canyon grassland and shrubland, extent of
the hexagon's most extensive land cover type, April precipitation (hex.
max.), April precipitation (hex. min.), May precipitation (hex. max.),
topographic variation, and the extent of public land.
Classification trees
Hexagons: using ONHP land cover classification (accuracy score: 80.84)
Squares: using ONHP land cover classification (accuracy score: 97.39)
Hexagons: using AVHRR land cover classification (accuracy score: 81.54)
