Evaluating Habitat Potential of Snags

Researchers: Joan Hagar, Jim Rivers, Amy Barry

Study Objective: Evaluate the habitat potential of snags on cavity-nesting birds

Summary: Snags provide critical habitat for nearly one-third of wildlife species in forests of the Pacific Northwest, so historic declines in snags are thought to have had a strong impact on biodiversity. Using snags that were created by topping mature Douglas-fir trees (Pseudotsuga menziesii) as part of the OSU College of Forestry Integrated Research Project, we measured characteristics of 731 snags and quantified foraging and breeding use of snags by birds 25-27 years after their creation.