This area includes the Willamette River floodplain from South of Springfield in the Dexter/Lowell area north to Albany.
COA ID: 061
The West Cascades ecoregion extends from east of the Cascade Mountains summit to the foothills of the Willamette, Umpqua, and Rogue Valleys, and spans the entire length of the state of Oregon. It is largely dominated by conifer forests, moving into alpine parklands and dwarf shrubs at higher elevations.
The Willamette Valley ecoregion is bounded on the west by the Coast Range and on the east by the Cascade Range. This long mostly level alluvial plain has some scattered areas of low basalt, and contrasts with productive farmland and large urban areas. It has the fastest-growing human population in the state resulting in challenges due to land-use changes.
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
Late Successional Mixed Conifer Forests
Late successional mixed conifer forests provide a multi-layered tree canopy, including large-diameter trees, shade-tolerant tree species in the understory, and a high volume of dead wood, such as snags and logs.
Natural lakes are relatively large bodies of freshwater surrounded by land. For the purposes of the Conservation Strategy, natural lakes are defined as standing water bodies larger than 20 acres, including some seasonal lakes.
Oak woodlands are characterized by an open canopy dominated by Oregon white oak.
Flowing Water and Riparian Habitats
Flowing Water and Riparian Habitats include all naturally occurring flowing freshwater streams and rivers throughout Oregon as well as the adjacent riparian habitat.
Wetlands are covered with water during all or part of the year. Permanently wet habitats include backwater sloughs, oxbow lakes, and marshes, while seasonally wet habitats include seasonal ponds, vernal pools, and wet prairies.
Acorn Woodpecker (Observed)
Bradshaw’s Desert Parsley (Observed)
Bull Trout (Documented)
California Myotis (Observed)
Cascade Torrent Salamander (Modeled Habitat)
Chipping Sparrow (Observed)
Clouded Salamander (Modeled Habitat)
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
Coastal Tailed Frog (Modeled Habitat)
Common Nighthawk (Observed)
Foothill Yellow-legged Frog (Observed)
Fringed Myotis (Observed)
Grasshopper Sparrow (Observed)
Ammodramus savannarum perpallidus
Great Gray Owl (Modeled Habitat)
Harlequin Duck (Modeled Habitat)
Hoary Bat (Observed)
Lewis’s Woodpecker (Observed)
Long-legged Myotis (Modeled Habitat)
Northern Red-legged Frog (Observed)
Northern Spotted Owl (Observed)
Strix occidentalis caurina
Olive-sided Flycatcher (Observed)
Oregon Chub (Documented)
Oregon Slender Salamander (Modeled Habitat)
Oregon Vesper Sparrow (Observed)
Pooecetes gramineus affinis
Purple Martin (Observed)
Progne subis arboricola
Red Tree Vole (Modeled Habitat)
Short-eared Owl (Observed)
Asio flammeus flammeus
Silver-haired Bat (Observed)
Southern Torrent Salamander (Modeled Habitat)
Townsend’s Big-eared Bat (Observed)
Western Bluebird (Observed)
Western Gray Squirrel (Observed)
Western Meadowlark (Observed)
Western Painted Turtle (Observed)
Chrysemys picta bellii
Northwestern Pond Turtle (Observed)
Wayside Aster (Observed)
Western Rattlesnake (Modeled Habitat)
Western Ridged Mussel (Observed)
Western Toad (Modeled Habitat)
White-breasted Nuthatch (Observed)
Sitta carolinensis aculeata
Willow Flycatcher (Observed)
Yellow-breasted Chat (Observed)
Icteria virens auricollis