Diet Overlap

Lagopus lagopus (Willow Ptarmigan) Ursus arctos (Grizzly Bear)

Common Diet

Arctostaphylos alpinus (alpine bearberry) Empetrum nigrum (black crowberry) Vaccinium uliginosum (bog blueberry) Vaccinium vitis-idaea (lingonberry)

Common Habitat

Alam-Pedja Alaska Peninsula montane taiga Alaska-St. Elias Range tundra Alberta Mountain forests Aleutian Islands Biosphere Reserve Amur meadow steppe Arctic coastal tundra Arctic foothills tundra Arctic National Wildlife Refuge Baikalskiy Biosphere Reserve Barguzinskiy Biosphere Reserve Berezinskiy Zapovednik Bering tundra Beringia lowland tundra Beringia upland tundra British Columbia mainland coastal forests Brooks-British Range tundra Cascade Mountains leeward forests Central British Columbia Mountain forests Cherskii-Kolyma mountain tundra Chukchi Peninsula tundra Cook Inlet taiga Copper Plateau taiga Da Hinggan-Dzhagdy Mountains conifer forests Darvinsky Zapovednik Denali Biosphere Reserve East Siberian taiga Elimyssalon alue Fraser Plateau and Basin complex Gates of the Arctic National Park Glacier Bay National Park and Preserve Great Lakes Basin desert steppe Haapasuo-Syysniemi-Rutajärvi-Kivijärvi Interior Alaska-Yukon lowland taiga Interior Yukon-Alaska alpine tundra Iso Koihnanneva Ivvavik National Park Jasper National Park Joutsenaapa - Kaita-aapa Kamchatka Mountain tundra and forest tundra Kamchatka-Kurile meadows and sparse forests Kamchatka-Kurile taiga Kansanneva-Kurkineva-Muurainsuo Katunsky Biosphere Reserve Kazakh forest steppe Kluane National Park and Reserve Kola Peninsula tundra Kronotskiy Biosphere Reserve Lake Torne Area Laplandskiy Biosphere Reserve Low Arctic tundra Luiron suot Manchurian mixed forests MARTIMOAAPA-LUMIAAPA-PENIKAT Mongolian-Manchurian grassland Muskwa-Slave Lake forests Nahanni National Park Reserve Noatak Biosphere Reserve North America North Central Rockies forests Northeast Siberian coastal tundra Northeast Siberian taiga Northern Canadian Shield taiga Northern Cordillera forests Northern Pacific coastal forests Northern transitional alpine forests Northwest Russian-Novaya Zemlya tundra Northwest Territories taiga Ogilvie-MacKenzie alpine tundra Okhotsk-Manchurian taiga Okskiy Biosphere Reserve Pacific Coastal Mountain icefields and tundra Parc National Suisse Pechoro-Ilychskiy Biosphere Reserve Puulavesi Queen Maud Gulf Bird Sanctuary Sarmatic mixed forests Sayan Alpine meadows and tundra Sayan Intermontane steppe Sayan montane conifer forests Sayano-Shushenskiy Biosphere Reserve Scandinavian and Russian taiga Scandinavian Montane Birch forest and grasslands Selenge-Orkhon forest steppe Sokhondinskiy Biosphere Reserve Soomaa South Siberian forest steppe Southern Asia Suuripään alue Suurisuo-Sepänsuo-Paanasenneva-Teerineva Taimyr-Central Siberian tundra Teicu dabas rezervats Teuravuoma-Kivijärvenvuoma Törmäsenrimpi-Kolkanneva Trans-Baikal Bald Mountain tundra Trans-Baikal conifer forests Tsentral'no-Lesnoy Biosphere Reserve Tsentral'no-Sibirskiy Biosphere Reserve Tuktut Nogait National Park Ubsunurskaya Kotlovina (Ubsunur Depression) Ukkusiksalik National Park Ural montane forests and tundra Viiankiaapa Walker Bay Field Station Wapusk National Park West Siberian taiga Western Siberian hemiboreal forests Wrangell-St. Elias National Park and Preserve Yamal-Gydan tundra Yukon Interior dry forests