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A large (3,000+ acres) island located at River Mile 78-81 along the Lower Columbia River.
COA ID: 053
Ecoregions
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Coast Range
Oregon’s Coast Range, known for its dramatic scenery, is extremely diverse, with habitats ranging from open sandy dunes to lush forests and from tidepools to headwater streams. It follows the coastline and extends east through coastal forest to the border of the Willamette Valley and Klamath Mountains ecoregions
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Willamette Valley
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.
Strategy Habitats
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Grasslands
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
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Oak Woodlands
Oak woodlands are characterized by an open canopy dominated by Oregon white oak.
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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.
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Wetlands
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.
Strategy Species
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California Myotis (Modeled Habitat)
Myotis californicus
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Chinook Salmon (Documented)
Oncorhynchus tshawytscha
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Chipping Sparrow (Modeled Habitat)
Spizella passerina
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Chum Salmon (Documented)
Oncorhynchus keta
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Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
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Coho Salmon (Documented)
Oncorhynchus kisutch
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Columbia Torrent Salamander (Modeled Habitat)
Rhyacotriton kezeri
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Common Nighthawk (Modeled Habitat)
Chordeiles minor
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Dusky Canada Goose (Observed)
Branta canadensis occidentalis
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Fringed Myotis (Modeled Habitat)
Myotis thysanodes
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Hoary Bat (Modeled Habitat)
Lasiurus cinereus
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Northern Red-legged Frog (Modeled Habitat)
Rana aurora
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Olive-sided Flycatcher (Modeled Habitat)
Contopus cooperi
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Oregon Vesper Sparrow (Modeled Habitat)
Pooecetes gramineus affinis
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Pacific Lamprey (Documented)
Entosphenus tridentatus
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Silver-haired Bat (Modeled Habitat)
Lasionycteris noctivagans
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Steelhead / Rainbow / Redband Trout (Documented)
Oncorhynchus mykiss ssp
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Western Bluebird (Observed)
Sialia mexicana
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Western Gray Squirrel (Modeled Habitat)
Sciurus griseus
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Western Meadowlark (Modeled Habitat)
Sturnella neglecta
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Western Painted Turtle (Observed)
Chrysemys picta bellii
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Northwestern Pond Turtle (Observed)
Actinemys marmorata
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Purple Martin (Observed)
Progne subis arboricola
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Willow Flycatcher (Observed)
Empidonax traillii
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Yellow-breasted Chat (Modeled Habitat)
Icteria virens auricollis