The Effects of Timber Harvesting on the Kaibab Squirrel

Kaibab squirrel (Sciurus aberti kaibabensis) density in southwestern ponderosa pine (Pinus ponderosa) was less on treatment plots (cut) when compared to controls. The degree of influence of timber harvesting on squirrel density is related to the density and diameter of trees remaining for food and cover, to the amount of tree patchiness, and to the size of cut area. The home range of five squirrels increased from pre- to posttreatment conditions. Mitigation procedures such as leaving small groups of trees around nest trees, feed trees, and water sources can reduce the effects of a timber harvest on squirrel habitat.