Sustaining Cavity-Using Species: Patterns of Cavity Use and Implications to Forest Management
Figure 5
Percent use of hardwood by primary cavity excavators of the Pacific Northwest ( = number of nest trees). Data of [8, 11, 28, 53, 57, 58, 61–64, 70, 77, 79, 81–85, 87–93, 95–101, 103, 110, 164–185].
