Species analysis
Statistical exploration
Classification trees
Variables
Sharp-shinned Hawk
Occurred the most disproportionately in hexagons with annual
precipitation 431-1511 mm and July minimum temperature (hex. min.)
of 1-5� C and either a April minimum temperature (hex. min.) of -2 to
-6� C or a July maximum temperature (hex. max.) of more than 26� C.
Almost equally likely to occur in hexagons with somewhat more
annual precipitation (more than 1511 mm), provided they contain some
recently cutover/burnt forest. Also occur in drier conditions (303-431
mm annual precipitation), especially where ponderosa pine forest
occupies more than 2% of a hexagon and extent of the most extensive
cover type in the hexagon less than 57%. The logistic regression
analysis showed positive or negative association with big sagebrush
shrubland, ponderosa pine forest, June maximum temperature (hex.
min.), and-to a lesser degree-number of land cover types.
Classification trees
Hexagons: using ONHP land cover classification (accuracy score: 84.19)
Squares: using ONHP land cover classification (accuracy score: 88.80)
Hexagons: using AVHRR land cover classification (accuracy score: 81.63)
