Map 2: Logged Spotted Owl Habitat In Canada
A logging activity overlay was used to illustrate the extent of post 1940 logging in the Spotted Owl study area. 1940 represents the earliest readily available data on commercial logging. The remaining forest cover (below 1,370 m elevation) is shown separated into age classes. Age class 8-9 (greater than 140 years), with a height class > 2 (taller than 19.3 m) is used to show the extent of Spotted Owl suitable habitat. Age class 6-7 (101 - 140 years), with height class >2 (taller than 19.3 m) is used to show the extent of middle aged forest and age class 1-5 (less than 101 years) is used to show younger forests, due to younger species types, natural disturbances, and pre-1940 logging activity.
