Diet Overlap

Ictalurus punctatus (Channel catfish) Castor canadensis (american beaver)

Common Diet

Lemna minor (common duckweed) Ulmus americana (American elm)

Common Habitat

Alaska & Canada Pacific Coastal Algonquin Provincial Park Amistad National Recreation Area Appalachian Piedmont Audubon National Wildlife Refuge Big Thicket Biosphere Reserve Bighorn Canyon National Recreation Area Buffalo National River Canyonlands National Park Central & Western Europe Central Gulf Coastal Plain Biosphere Reserve Champlain-Adirondack Biosphere Reserve Chesapeake Bay Colonial National Historic Park Devils Tower National Monument Fathom Five National Marine Park George Washington Memorial Parkway Gila Great Smoky Mountains National Park Horseshoe Bend National Military Park Jean Lafitte National Hist. Park & Preserve Lahontan Lake Meredith National Recreation Area Land Between the Lakes Biosphere Reserve Laurentian Great Lakes Little River National Wildlife Refuge Mammoth Cave Area Biosphere Reserve (Natn'l Park) New Jersey Pinelands Biosphere Reserve New River Gorge National River Niagara Escarpment Biosphere Reserve Northeast US & Southeast Canada Atlantic Drainages Oak Ridge National Environmental Research Park Okefenokee National Wildlife Refuge Rock Creek Park Sacramento - San Joaquin Saint Lawrence Islands National Park Southern Appalachian Biosphere Reserve Upper Miss. River Nat'l Wildlife Refuge Whiskey-Shasta-Trinity National Recreation Area