Managing Southwestern Ponderosa Pine for the Abort Squirrel
The preferred habitat of the Abert squirrel (Sciurus aberti) is an all-aged forest of ponderosa pine (Pinus ponderosa Laws). Stands that average between 11 and 13 inches d.b.h. and 150 to 200 square feet of basal area per acre are the best cover for nest trees. Nests are built in trees that are part of a group with interlocking crowns. Ponderosa pine buds, twigs, and cones are major food items, and squirrels select tree sizes from 11 to 30 inches for feeding. Trees over 20 inches d.b.h. are the best cone producers and in the right combinations with smaller trees provide quality habitat. Habitat can be assured if ponderosa pine is regenerated by the group selection method.
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Document Type: Journal Article
Affiliations: Principal Wildlife Biologist, Rocky Mountain Forest and Range Experiment Station, USDA Forest Service, Tempe, Arizona
Publication date: 1977-05-01
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