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USDA Forest Service

Pacific Southwest Research Station


fs.fed.us
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 http://treesearch.fs.fed.us/

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

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In The News
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What's new
Pooling water from an analog beaver dam on the Stanislaus National Forest.

World Wetlands Day: Research looks at new approaches toward restoring physical attributes of a healthy meadow along with its ecological processes.

Street trees provide shade in front of businesses along the road.

California's 173.2 million city trees provide ecosystem services valued at $8.3 billion a year. However, a recent study shows more can be done by transitioning to more resilient urban forests.

Close up of a colorful iiwi, a native Hawaiian bird

A new study tracking shifts in climate-related changes to native vegetation shows an impact on Hawaiian bird abundance, breeding and molting.

An view of a lake in the mountains surrounded by many dead trees among living trees in the forest.

Visit our tree mortality research topic area where you can find the latest research and links to resources about the impacts from climate, insects and diseases.

A screenshot of the title slide to the YouTube video, The Ohia: The Story of Hawaii's Tree.

The Ohia: The Story of Hawaii's Tree is a video featuring PSW researchers explaining the Ohia tree and the impacts of Rapid Ohia Death.

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

[image-text]: Featured Science
Hālau ʻŌhiʻa - a Native Hawaiian lifeways professional development program
An adult and child look over a railing while identifying trees in the neighborhood.
Hālau ʻŌhiʻa � Hawaii Stewardship Training participants help with a shoreline cleanup during an immersive, community engagement experience. (Photo courtesy of Hālau ʻŌhiʻa � Hawaii Stewardship Training)

In Hawaiʻi, tapping into multiple sources of knowledge, integrating indigenous ecological knowledge into land management, and building effective partnerships have become increasingly possible because of Hālau ʻŌhiʻa - a Native Hawaiian professional development program integrating traditional and western knowledge.

PSW's Institute of Pacific Islands Forestry, together with Hālau ʻŌhiʻa founder and trainer Kekuhi Kealiʻikanakaʻoleohaililani, have worked with more than 100 community members to integrate traditional and western knowledge into the day-to-day working lives of conservation professionals in Hawaiʻi.

The efforts have increased awareness of native Hawaiian cultural practices, enhanced collaboration in the community, broadened understanding of multiple approaches to conservation, and enhanced capacity to recruit, train, and retain staff. In 2017, Kekuhi was a unanimous selection for the Hawaii Conservation Alliance Conservation Innovation Award, honoring her pioneering contributions to the conservation community.

[image-text]: Recent Publications
Cover image psw-gtr-258
Proceedings of the Coast Redwood Science Symposium�2016: past successes and future direction. Proceedings of a workshop
(GTR-PSW-258)

There is no more iconic tree or more closely watched forest ecosystem than coast redwood. With its limited range and high value, the coast redwood forest is a microcosm of many of the emerging science and management issues facing today�s forested landscapes.

Cover image psw-gtr-256
Natural range of variation for yellow pine and mixed-conifer forests in the Sierra Nevada, southern Cascades, and Modoc and Inyo National Forests, California, USA
(GTR-PSW-256)

We conducted an indepth assessment of the natural range of variation of yellow pine and mixed-conifer forests for the assessment area, focusing on ecosystem processes and forest structure from historical data sources from pre-Euro-American settlement times.

Cover image psw-gtr-254
The California Spotted Owl: Current State of Knowledge
(GTR-PSW-254)

This conservation assessment represents a comprehensive review by scientists of the current scientific knowledge about the ecology, habitat use, population dynamics, and current threats to the viability of the California spotted owl (Strix occidentalis). It is based primarily on peer-reviewed published information with an emphasis on new scientific information that has emerged.

Last Modified: Feb 1, 2018 05:27:10 PM