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Tater Hill Research Natural AreaRoseburg District , BLMWest Cascades, Oregon EcoregionCell(s):
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Access by unpaved road
The 113 ha Tater Hill RNA lies 32 km southeast of Roseburg in Douglas County, Oregon. In its upper reaches, there is an active landslide of pyroclastic volcanic rocks and ashflow tuffs. With elevations ranging from 560 to 1040 m, lower slopes average 15%, mid-slopes 22%, and upper slopes to 78%, with near vertical scarps along the top and sides of the landslide with exposed bedrock. All seral stages of mixed conifer forest are present, ranging from pioneer to old-growth. Grand fir (Abies grandis) and western hemlock (Tsuga heterophylla) are the dominant regeneration in mature Douglas fir (Pseudotsuga menziesii) communities. Oceanspray (Holodiscus discolor) and Oregon grape (Berberis spp.) are common in the understory. Soil series include Vena, Freezner, and Selmac. The mild maritime climate has cool, wet winters and warm, dry summers, with approximately 127 to 152 cm of precipitation per year. The area was designated an RNA for old growth associated plant and animal species, including Northern Spotted Owl, Vezdaea lichen (Vezdaea stipitata), and the blue-gray taildropper slug (Prophysaon coerleum). Past disturbance is from natural earth flows. In 1995, Dr. Daphne Stone completed a lichen inventory and Dr. David Wagner, a bryophyte inventory.| Home | About RNAs | Interagency Program | Research Use | RNA Sites | Bibliography | Links |