USDA Forest Service

Pacific Southwest Research Station

Pacific Southwest
Research Station

800 Buchanan Street
Albany, CA 94710-0011
(510) 883-8830
United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.
[image:] TreeSearch, links to

Giving you access to more than 45,000 online USDA Forest Service Research publications.

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Recent News Releases

What's new
Cover image of the science syntheis publication on drought

The latest USDA Blog explains how the Forest Service drought report serves as a 'Foundation of Understanding' for forest and rangeland managers in a changing climate.

An underwater view of a California golden trout

A new six-year study provides an understanding of the interactive effects of climate warming and livestock grazing on water temperature in our latest news release.

Still waters reflect a beautiful blue sky and surrounding landscape in Lake Valley in the Emigrant Wilderness. Photo taken by Jim Frazier.

Visit the new site for the Science Synthesis to Inform Plan Revisions Within the Northwest Forest Plan Area. Research will inform the revision of management plans for 19 national forests.

Photo of a researcher standing in a burned stand of trees with green regrowth on the forest floor.

Cal Poly and PSW recently signed an agreement to include the university's Swanton Pacific Ranch in the federal Experimental Forests and Ranges program. Read the full news release.

A YouTube screenshot on how to detect a tree infected with Ohia wilt.

Our researchers are working with the University of Hawaii and other partners to spread awareness on Rapid Ohia Death. Visit the Hawaii Forestry Extension website to learn about the disease.

Science that makes a difference.

The Pacific Southwest Research Station is a world leader in natural resources research through our scientific excellence and responsiveness to the needs of current and future generations.

We represent the research and development branch of the USDA Forest Service in the states of California and Hawaii and the U.S. affiliated Pacific Islands. Our primary work occurs in California (the most populous state with the eighth-largest economy in the world) and Hawaii (a strategic location in the Pacific Rim economies and tourism).

Our mission is to develop and communicate science needed to sustain forest ecosystems and their benefits to society.

[image-text]: Featured Science
Cover image psw-gtr-251.
Cover image of the recently published proceedings of the seventh California oak symposium.
California oak symposium looks at managing oak woodlands in a dynamic world

Oak woodlands cover 10 percent of California and are a key ecological component of conifer forests. The ecosystem services and the biologically diverse habitat oak woodlands provide makes conservation of these areas of vital importance. Pacific Southwest Research Station recently published General Technical Report 251, "Proceedings of the seventh California oak symposium: managing oak woodlands in a dynamic world." These proceedings have 56 papers in a broad array of subject areas, including wildlife and oaks; oak ecosystem services; oak restoration; oak conservation, management and utilization; and the gold-spotted oak borer and sudden oak death.

Forest Service researchers assess insects and pathogens of concern to Hawai'i's forests

Formed and developed over the millennia independently of any other land mass, Hawaii has very unique and distinct species and ecosystems on each island. Because of its geographic isolation, almost all goods need to be imported. Insects and pathogens accidently introduced into the state threaten native forest ecosystems and urban forest trees. In this report, 24 individual pest risk assessments were prepared, 12 dealing with insects and 12 with pathogens. The selected organisms were examples of insects and pathogens found on foliage, on the bark, in the bark, and in the roots and wood of the native hosts of interest—or closely related host species—in other parts of the world. Six priority findings resulted from the analysis.

[image-text]: Recent Publications
Cover image psw-gtr-249
Trees of Yap: A Field Guide (GTR-PSW-249)

Descriptions, drawings, and photographs are presented for trees found on the Yap Islands in the Federated States of Micronesia. Included are all recorded native trees and most introduced trees as well as new records of native and introduced trees. Additional information is provided on tree distribution, status, and vernacular names in Micronesia.

Cover image psw-gtr-247
Science synthesis to support socioecological resilience in the Sierra Nevada and southern Cascade Range (GTR-PSW-247)

A team of scientists integrated recent research to inform forest managers, stakeholders, and interested parties concerned with promoting socioecological resilience in the Sierra Nevada, southern Cascade Range, and Modoc Plateau.

Cover image psw-rp-266
Using Fire Return Interval Departure (FRID) Analysis to Map Spatial and Temporal Changes in Fire Frequency on National Forest Lands in California (RP-PSW-266)

In California, fire regimes and related ecosystem processes have been altered by land use practices associated with Euro-American settlement, and climate warming is exacerbating the magnitude and effects of these changes.

Last Modified: Feb 8, 2016 05:07:31 PM