The North Umpqua River Area COA (119 mi2) is located on the eastside of Roseburg and includes a significant stretch of the North Umpqua River and its tributaries, as well as surrounding riparian and upland habitats. This COA is adjacent to the Umpqua River and South Fork Umpqua River and Tributaries COAs.
Ecoregions
Klamath Mountains
The Klamath Mountains ecoregion covers much of southwestern Oregon, including the Klamath Mountains, Siskiyou Mountains, the interior valleys and foothills between these and the Cascade Range, and the Rogue and Umpqua river valleys. Several popular and scenic rivers run through the ecoregion, including the Umpqua, Rogue, Illinois, and Applegate rivers. Historically, this ecoregion is known …
West Cascades
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.
Key Habitats
Grasslands
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
Natural lakes are relatively large bodies of freshwater surrounded by land that were formed through geological processes, such as glacial scouring, tectonic movements, volcanic activity and river meander cutoffs. In Oregon, natural lakes are defined as standing water bodies larger than 20 acres, including some seasonal lakes. Depth is not a reference for characterization of …
Oak Habitats
There are several oak habitat types in Oregon, where oaks comprise most of the canopy. These can include oak woodlands, oak forest, oak chaparral, and riparian oak. Oak savanna is covered in the Grasslands Key Habitat. Oaks may also co-dominate a canopy in oak/fir, oak pine, and oak hardwood habitats.
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
Wetlands are habitats that are inundated or saturated by surface water or ground water at a frequency and duration sufficient to support vegetation typically adapted for life in sodden soil conditions. While dominated by periods of inundation, the natural ecological cycle may also include dry intervals. Permanently wet habitats include backwater sloughs, oxbow lakes, peatlands, …
Species of Greatest Conservation Need
Acorn Woodpecker (Observed)
Melanerpes formicivorus
California Myotis (Observed)
Myotis californicus
Chinook Salmon (Documented)
Oncorhynchus tshawytscha
Clouded Salamander (Modeled Habitat)
Aneides ferreus
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
Coastal Tailed Frog (Modeled Habitat)
Ascaphus truei
Coho Salmon (Documented)
Oncorhynchus kisutch
Common Nighthawk (Observed)
Chordeiles minor
Pacific Fisher (Modeled Habitat)
Pekania pennanti
Foothill Yellow-legged Frog (Observed)
Rana boylii
Fringed Myotis (Observed)
Myotis thysanodes
Western Grasshopper Sparrow (Observed)
Ammodramus savannarum perpallidus
Great Gray Owl (Observed)
Strix nebulosa
Hoary Bat (Observed)
Lasiurus cinereus
Lewis’s Woodpecker (Observed)
Melanerpes lewis
Long-legged Myotis (Observed)
Myotis volans
Marbled Murrelet (Modeled Habitat)
Brachyramphus marmoratus
Northern Red-legged Frog (Observed)
Rana aurora
Northern Spotted Owl (Observed)
Strix occidentalis caurina
Olive-sided Flycatcher (Modeled Habitat)
Contopus cooperi
Oregon Shoulderband (Observed)
Helminthoglypta hertleini
Oregon Vesper Sparrow (Observed)
Pooecetes gramineus affinis
Pallid Bat (Modeled Habitat)
Antrozous pallidus
Western Purple Martin (Observed)
Progne subis arboricola
Red Tree Vole (Observed)
Arborimus longicaudus
Ringtail (Observed)
Bassariscus astutus
Rough popcornflower (Observed)
Plagiobothrys hirtus
Silver-haired Bat (Observed)
Lasionycteris noctivagans
Steelhead / Rainbow / Redband Trout (Documented)
Oncorhynchus mykiss ssp
Townsend’s Big-eared Bat (Observed)
Corynorhinus townsendii
Wayside aster (Observed)
Eucephalus vialis
Northwestern Pond Turtle (Observed)
Actinemys marmorata
Western Ridged Mussel (Observed)
Gonidea angulata
Western Toad (Modeled Habitat)
Anaxyrus boreas
Yellow-breasted Chat (Observed)
Icteria virens auricollis