The Copper Plateau taiga is an

ecoregion An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of l ...

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

, as defined by the

World Wildlife Fund The World Wide Fund for Nature Inc. (WWF) is an international non-governmental organization founded in 1961 that works in the field of wilderness preservation and the reduction of human impact on the environment. It was formerly named the Wo ...

(WWF) categorization system and the

Commission for Environmental Cooperation The Commission for Environmental Cooperation (CEC; es, Comisión para la Cooperación Ambiental; french: Commission de coopération environnementale) was established by Canada, Mexico, and the United States to implement the North American Agree ...

, in the

Taiga and Boreal forests Taiga (; rus, тайга́, p=tɐjˈɡa; relates to Mongolic and Turkic languages), generally referred to in North America as a boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces, ...

Biome A biome () is a biogeographical unit consisting of a biological community that has formed in response to the physical environment in which they are found and a shared regional climate. Biomes may span more than one continent. Biome is a broader ...

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

Setting

This ecoregion consists of a large flat plateau in southeastern

at 400-900m above sea level, surrounded by the high mountains and dotted with many lakes and marshes. The area is almost entirely within the Wrangell – St. Elias National Park and Preserve while the

Denali Highway Denali Highway (Alaska Route 8) is a lightly traveled, mostly gravel highway in the U.S. state of Alaska. It leads from Paxson on the Richardson Highway to Cantwell on the Parks Highway. Opened in 1957, it was the first road access to Denali Na ...

crosses the ecoregion in the northwest. This a very wet and damp region with up to 460mm rainfall per year and with temperatures ranging from -27 °C in winter to 21 °C in summer there are patches of shallow

permafrost Permafrost is ground that continuously remains below 0 °C (32 °F) for two or more years, located on land or under the ocean. Most common in the Northern Hemisphere, around 15% of the Northern Hemisphere or 11% of the global surface ...

Flora

To survive here plants have to be adapted to the damp conditions and the dominant tree is black spruce (''

Picea mariana ''Picea mariana'', the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada, found in all 10 provinces and all 3 territories. It is the official tree of the province of Newfoundland and Labra ...

'') while the boggier areas have the dwarf birches (''

Betula glandulosa ''Betula glandulosa'', the American dwarf birch, also known as resin birch or shrub birch, is a species of birch native to North America. Description American dwarf birch is a multi-stemmed shrub typically growing to tall, often forming dense ...

'' and ''

Betula nana ''Betula nana'', the dwarf birch, is a species of birch in the family Betulaceae, found mainly in the tundra of the Arctic region. Description It is a monoecious, deciduous shrub growing up to high. The bark is non-peeling and shiny red-copper ...

'') along with shrubs and

sedge The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' wit ...

s such as ''

Eriophorum angustifolium ''Eriophorum angustifolium'', commonly known as common cottongrass or common cottonsedge, is a species of flowering plant in the sedge family, Cyperaceae. Native to North America, North Asia, and Northern Europe, it grows on peat or acidic soil ...

'' and ''

Carex ''Carex'' is a vast genus of more than 2,000 species of grass-like plants in the family Cyperaceae, commonly known as sedges (or seg, in older books). Other members of the family Cyperaceae are also called sedges, however those of genus ''Carex'' ...

'' and herbs such as ''

Menyanthes trifoliata ''Menyanthes'' is a monotypic genus of flowering plants in the family Menyanthaceae containing the single species ''Menyanthes trifoliata''. The North American form is often referred to as ''M. trifoliata'' var. ''minor'' Michx. It is known ...

'', ''

Petasites frigidus ''Petasites frigidus'', the Arctic sweet coltsfoot or Arctic butterbur, is a species of flowering plant in the family Asteraceae. It is native to Arctic to cool temperate regions of the Northern Hemisphere in northern Europe, northern Asia and ...

'' and ''

Comarum palustre ''Comarum palustre'' ( syn. ''Potentilla palustris''), known by the common names purple marshlocks, swamp cinquefoil and marsh cinquefoil, is a common waterside shrub. It has a circumboreal distribution, occurring throughout North America, Europe, ...

''. Well-drained areas have communities of white spruce (''

Picea glauca ''Picea glauca'', the white spruce, is a species of spruce native to the northern temperate and boreal forests in North America. ''Picea glauca'' is native from central Alaska all through the east, across southern/central Canada to the Avalon Pe ...

''), black cottonwood (''

Populus trichocarpa ''Populus trichocarpa'', the black cottonwood, western balsam-poplar or California poplar, is a deciduous broadleaf tree species native to western North America. It is used for timber, and is notable as a model organism in plant biology. Desc ...

'') and quaking aspen (''

Populus tremuloides ''Populus tremuloides'' is a deciduous tree native to cooler areas of North America, one of several species referred to by the common name aspen. It is commonly called quaking aspen, trembling aspen, American aspen, mountain or golden aspen, tr ...

'').

Fauna

Lake Louise, Paxson Lake and the many other wetlands of the plain are nesting grounds for may birds including the

trumpeter swan The trumpeter swan (''Cygnus buccinator'') is a species of swan found in North America. The heaviest living bird native to North America, it is also the largest extant species of waterfowl, with a wingspan of 185 to 250 cm (6 ft 2 in to 8 ft 2 ...

, the largest waterfowl in North America. The

Copper River Copper River may refer to several places: *Copper River (Alaska), in the United States * Copper River (British Columbia), a tributary of the Skeena River The Skeena River is the second-longest river entirely within British Columbia, Canada (afte ...

is home to salmon especially

Chinook salmon The Chinook salmon (''Oncorhynchus tshawytscha'') is the largest and most valuable species of Pacific salmon in North America, as well as the largest in the genus ''Oncorhynchus''. Its common name is derived from the Chinookan peoples. Other ve ...

and

sockeye salmon The sockeye salmon (''Oncorhynchus nerka''), also called red salmon, kokanee salmon, blueback salmon, or simply sockeye, is an anadromous species of salmon found in the Northern Pacific Ocean and rivers discharging into it. This species is a P ...

. Mammals include the Nelchina

caribou Reindeer (in North American English, known as caribou if wild and ''reindeer'' if domesticated) are deer in the genus ''Rangifer''. For the last few decades, reindeer were assigned to one species, ''Rangifer tarandus'', with about 10 subspe ...

herd that migrates across the western side of the plain.

Threats and preservation

Habitat has been lost to development around Glenallen and to logging along the

and on

Alaska Native Regional Corporations The Alaska Native Regional Corporations were established in 1971 when the United States Congress passed the Alaska Native Claims Settlement Act (ANCSA) which settled land and financial claims made by the Alaska Natives and provided for the establi ...

land near Chitina.

Protected areas

A 2017 assessment found that 5,195 km², or 30%, of the ecoregion is in protected areas. The eastern portion of the ecoregion is in

Wrangell–St. Elias National Park and Preserve Wrangell–St. Elias National Park and Preserve is an American national park and preserve managed by the National Park Service in south central Alaska. The park and preserve were established in 1980 by the Alaska National Interest Lands Conser ...

References

{{coord missing, Alaska Ecoregions of Alaska Forests of Alaska Nearctic ecoregions Taiga and boreal forests in the United States

Setting

Flora

Fauna

Threats and preservation

Protected areas

See also

References