08/25/2026
🌲Forest restoration that benefits wildlife can be challenging, but Cal Poly Humboldt researchers are helping bridge the gap. New research by Drs. Nicholas and Lucy Kerhoulas found that the Klamath River separates Sonoma and red tree voles into distinct species, with no evidence of interbreeding. The team also discovered that while Sonoma tree voles are most abundant in old-growth forests, simple nest platforms can encourage them to use second-growth forests. Together, these findings provide practical tools for restoring forests while supporting the long-term conservation of these unique canopy specialists. Watch a short video of photos collected here.
Funding for this project was provided by the Save the Redwoods League.