Skip to Main Content
The mighty oak faces challenges in the Pacific WestAuthor(s): Gail Wells
Source: Science Update 20. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 11 p.
Publication Series: Science Update
Station: Pacific Northwest Research Station
PDF: View PDF (19.8 MB)
DescriptionIn popular imagination, the oak tree stands for strength, endurance, and longevity. But in the coastal lowlands and central valleys of British Columbia, Washington, Oregon, and California, oaks face a battery of natural and human-induced threats. Sudden oak death, caused by a virulent pathogen identified in 2000, has killed millions of tanoaks, California black oaks, and coast live oaks in California and southern Oregon. In 2008, scientists linked oak deaths in San Diego County to the newly named goldspotted oak borer, an insect first detected in the state in 2004. Over the years, much of the oak landscape along the west coast has been converted to residential and agricultural uses. Where it remains in Washington and Oregon, the sun-loving oak is threatened by encroachment of other trees. In California’s Central Valley, blue and valley oak communities are experiencing insufficient regeneration to match the current population.
Based on science by Tara Barrett, Tom Coleman, Susan Frankel, Connie Harrington, and Rick Kelsey
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationWells, Gail. 2010. The mighty oak faces challenges in the Pacific West. Science Update 20. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 11 p.
Keywordsoak threats, sudden oak death, goldspotted oak borer, land consersion. Tara Barrett, Tom Coleman, Susan Frankel, Connie Harrington, and Rick Kelsey.
- A review of oak wilt management: a summary of treatment options and their efficacy
- Herbivory and the cycling of nitrogen and phosphorus in isolated California oak trees
- Risk factors of oak decline and regional mortality patterns in the Ozark Highlands of Arkansas and Missouri
XML: View XML