Report Background

Pacific Biodiversity Institute prepared these watershed and ecosystem studies to help guide conservation efforts and land managers.


Report objectives

These reports are based on ecological field studies and analysis. We also incorporate remote sensing and GIS analysis into most of our projects. Many studies include information about watersheds, vegetation communities, flora and ecological conditions at specific locations. Some studies focus more on upland habitats and others focus more on wetlands, riparian and aquatic habitat.

Publications on Terrestrial Ecosystems

Upper Columbia Basin Landscape Analyses and Ecological Studies

Ecological Classifications of the Upper Columbia Evolutionarily Significant Unit for Spring Chinook Salmon and Summer Steelhead Trout, 2007.

Key Elements For Ecological Planning: Management Principles, Recommendations, And Guidelines For Federal Lands East Of The Cascade Crest In Oregon And Washington. Cara Nelson, Editor. 1995.

Landscape Prioritization and Reserve Design in the Interior Columbian River Basin, 1995.

Ecosystem Studies in Washington

Methow Valley Conservation Needs Assessment, 2005. This publication evaluates sensitive Areas, at-risk plants and animals, exotic Plants, Wildlife Corridors and potential buildable areas.

Natural Resource Information and Conservation Decision Support for the Wenatchee River Basin, 2002.

Wenatchee Basin Natural Resource Profile and Conservation Prioritization, 2001.

Loomis State Forest Wetland Mapping Project, 2000.

North Cascades Ecosystem Biodiversity Analysis, 1995-1996.

National Monument Analyses

Scientific justification for Columbia Mountains National Monument, 2000.

Scientific justification for Proposed Medicine Mountain National Monument, 2000.

Landscape Analysis of Proposed North Cascades National Monument, 2000.

Sonoran Desert National Monument Ecosystem Studies

Natural Communities of the Sonoran Desert National Monument and Sand Tank Mountains, Phase 2 Condition Assessment, 2003.

Appendices to the Sonoran Desert National Monument study, 2003.

Natural Communities and Ecological Condition of the Sonoran Desert National Monument and adjacent areas (full document with appendices, about 9 MB), 2003.

Natural Communities of the Sonoran Desert National Monument and Sand Tank Mountains, Phase 1, Maps and Descriptions, 2001.

Distribution and Abundance of Native Grasses in the Mountains of the Sonoran Desert National Monument and Adjoining Portions of the Barry M. Goldwater Range, 2006.

Native Grass Abundance in the Sonoran Desert National Monument, 2004.

Vegetation Studies in the Methow Valley in North Central Washington

Methow Valley Conservation Needs Assessment, 2005. This publication evaluates sensitive Areas, at-risk plants and animals, exotic Plants, Wildlife Corridors and potential buildable areas.

Methow Valley Wildlife Area Rare Plant and Vegetation Survey, 2006.

Bowen Mountain section of the Methow Valley Wildlife Area - Rare Plant and Vegetation Survey, 2007.

Vegetation Studies in State Parks


Click below for lists of all state parks by region



Mt. Spokane State Park

Mt. Spokane State Park Forest Health Report, 2007.

Mt. Spokane State Park Forest Health Report Appendix M, 2007.

Recommendations on Sampling Design and Scope of Work for Forest Health Assessments Conducted on Washington State Parks, 2008.

Mt. Spokane State Park - Wildlife Habitat for 21 Focal Species

Mt. Spokane State Park - Impact of Proposed Trails on Wildlife

Mt. Spokane State Park - Trails, Recreation and Wildlife

Mt. Spokane State Park - Cumulative Effects Analysis

Mt. Spokane State Park - Vegetation and Wildlife Habitat Survey of Mt. Kit Carson

Mt. Spokane State Park - Habitat Unit Map

Mt. Spokane State Park- Impact of Parking and Maintenence Facility on Vegetation and Wildlife

Mt. Spokane State Park - Proposed Actions from a Landscape Perspective

Mt. Spokane State Park - Impact of Proposed Trails on Vegetation


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