Research Summaries

New Research at the USDA-APHIS Olympia Field Station about Mountain Beaver Behavior Changes Old Thinking

The mountain beaver represents costly threats to reforestation. New research has improved our knowledge about mountain beaver behavior and has the potential to limit their damage.

Forest Management and Bat Habitat Relationships Studied

Fourteen species of bats occur in forests of the Pacific Northwest. New technology has made detailed studies of bats possible.

Wildfire

When a wildfire occurs, whether it is catastrophic or of lower severity, the structural characteristics of the forest change.

Road Maintenance & Abandonment Plans

New Washington State Road Maintenance and Abandonment Plan address aquatic habitat and fish passage issues.

Thinning -- A Common Technique in Managed Forests

Research shows that thinning -- a common technique in managed forests -- can promote bird abundance and species diversity.

Black Bear Supplemental Feeding Program

The supplemental feeding program joins group of management tools used in helping control bear damage to trees.

Amphibian Habitat Dependent on Geology and Gradient

Study suggests amphibian habitat in some headwater streams more dependent upon geology and gradient than age of trees.

New Threat to Spotted Owl

New threat to Spotted Owl comes from competition with larger and more aggressive Barred Owl.

New Findings in Wildlife Research Suggest Food Supply More Important to Elk than Dense Forests

The Bald Eagle population in Washington is thriving, helped by protection of nest sites and good forest management practices.