|
If you were to fly over this ecoregion, you'd see a rolling landscape dotted with lakes, wetlands, and rock outcroppings. Beautifully colored lichens--a symbiotic combination of algae and fungi -- cover many of the rocks. Wetlands called bogs and fens are dominated by black spruce. This ecoregion supports part of the large northern boreal coniferous forest.
Most of the ecoregion experiences cool summers and very cold winters. But the Lac Seul Upland area has a slightly wetter and warmer climate, with less permafrost than the rest of the area. The Athabasca Plain contains some of the most significant active sand dunes in boreal North America.
Black spruce, jack pine, trembling aspen, white birch, white spruce, balsam poplar, and balsam fir are the dominant trees of these boreal forests. The Athabasca Plain provides important winter range for woodland caribou. Many other species of wildlife make their homes year-round in this ecoregion. Moose, beavers, muskrats, snowshoe hares, red-backed voles, red squirrels, and least chipmunks are herbivores that live here. Numerous predators roam this area, including martens, ermines, fishers, otters, black bears, wolves, and lynx. The many wetlands and lakes support a diversity of bird species, such as white pelicans, sandhill cranes, ducks, geese, double-crested cormorants, and common loons. Ground- and tree-dwelling birds are also plentiful, including spruce grouse, sharp-tailed grouse, willow ptarmigans, common nighthawks, red-tailed hawks, ravens, bald eagles, and gray jays.
Nearly 80 percent of this ecoregion remains intact. Habitat pressures are most severe in Manitoba, where the ecoregion is considered 65 percent intact. Rapidly expanding forestry projects; mining for uranium, nickel, gold, and copper; and flooding from hydroelectric development are the main habitat threats. For more information on this ecoregion, go to the World Wildlife Fund Scientific Report. All text by World Wildlife Fund © 2001
|