Research related to that described on this website is also being carried out through the Applegate Adaptive Management Area Research and Monitoring program, sponsored by the USDA Forest Service, the USDI Fish and Wildlife Service, and the USDI BLM.
Researchers at the Klamath Bird Observatory, in collaboration with the Forest Service, BLM, National Park Service, and others, are investigating the ecological effects of wildfire and fire management by implementing a study of bird distribution as it relates to fire suppression, fuels treatment, and wildfire rehabilitation in the Klamath Ecoregion of southern Oregon and northern California (or check out the publication, "Using conservation plans and bird monitoring to evaluate ecological effects of management: An example with fuels reduction activities in southwest Oregon").
You might also be interested in learning about the Applegate Partnership and Watershed Council, a community-based non-profit organization involving industry, conservation groups, natural resource agencies, and residents cooperating to encourage and facilitate the use of natural resource principles that promote ecosystem health and diversity.
Downloadable GIS data for the entire state is also publically available through the Oregon Geospatial Data Clearinghouse, a project of the Oregon Geospatial Enterprise Office. Aerial imagery for 2005, 0.5 m resolution, is available through the Oregon Imagery Explorer.
Check out the Fire Effects Information System (FEIS), a searchable database of the USDA Forest Service that summarizes and synthesizes research about the biological and ecological relationships of living organisms to fire.
See the California Chaparral Institute webpage for much more information and many more resources on this vegetation type.
For a veritable library of oak-related information sources, see the USDA Forest Service's Bibliography for Oregon White oak (Quercus garryana) and Other Geographically Associated and Botanically Related Oaks.
See also the Atlas of maps (covering historical vegetation, physical-climate, ecological-biological, and political-social themes for the entire state) from the Oregon Department of Forestry.
GIS was used to investigate patterns of vegetation distribution on the landscape in relation to site conditions and disturbance history within the Applegate Adaptive Management Area. These mapping and analysis efforts produced several new or geoprocessed GIS layers, listed below. Contact Eric Pfaff or Dr. Paul Hosten for access to these data. For more information on this research project click here.
Layer Extent: 42.08° N, 123.26° W to
42.40° N, 122.76° W (located within the Applegate Adaptive Management Area). Also see a map of the study area.
Vegetation associations were defined and characterized based on species composition data gathered through extensive field surveys. Multivariate analysis techniques were used to group vegetation into 13 associations and named according to dominant or unique species. Each association listed below is mapped as a polygon feature.
Oat grass grassland
Mountain mahogany/Brewer's oak
Oregon white oak woodland
Black oak woodland
Canyon live oak woodland
The environmental variables were collected from various sources and standardized into raster format (30m by 30m resolution) by resampling with ArcGIS ArcToolbox using bilinear interpolation.
Elevation (in meters)
Sixth field watershed
Topographical position index
Actual annual evapotranspiration
Summer actual annual evapotranspiration
Cation exchange capacity
Upper soil horizon depth
Spatial extent of management or natural disturbance was mapped from BLM records.
Wildfire history 1895 - 2005
Maximum fire interval
Years since a wildfire
Management (current as of 2005)
Slash (hand cut)
Slash hand pile burn (hand cut pile burn)
Map of BLM fuels reduction projects in the Ashland Resource Area (larger). Current as of 10/2006.
The Interior Foothills of the Klamath Mountains Ecoregion (PDF) of southwestern Oregon and northern California are located at the junction of the Cascade, Sierra, and Coastal mountain ranges. The joining of these major mountain axes and the wide range of soil types that occur in the Ecoregion has resulted in unusually diverse plant life. Southwestern Oregon's interior valleys are dominated by a Mediterranean climate of cool, wet winters and hot, dry summers; this is in the driest climatic zone of Klamath region, and is floristically linked to landscapes to the south. Complex topography and microclimates result in boundaries that are often abrupt between plant communities coniferous forest, hardwood woodlands, chaparral shrublands, and grasslands. The area supports some of the least understood ecosystems in the Pacific Northwest.
Page by Olivia Duren. Updated 4/2010.
Oak and chaparral ecology and fuels management
in southwest Oregon