|
Along the Atlantic coast of this ecoregion, glaciers have carved U-shaped valleys in the steep mountainsides, which have become arms of the sea called fjords. The coast provides important habitat for seabird colonies and areas where seals can raise their young. It is also part of the Atlantic Flyway for migratory birds. The Larch Plateau and Richmond Hills have an undulating ground surface. Kaniapiskau Plateau is a raised granite region that reaches nearly 3,000 feet (915 m) above sea level. The ecoregion has many small, shallow lakes. In the eastern area, extensive string bogs (wetland areas that develop in cracks and depressions) are surrounded by sedges and brown and sphagnum mosses.
Lac des Loups Marins, Quebec, is home to a very rare population of about 300 landlocked freshwater seals. This ecoregion includes most of the year-round range of the George River barren-ground caribou herd, the world's largest migrating herd of caribou, containing an estimated 800,000 animals. The Mealy Mountains and Kingarutuk-Fraser River areas have extensive tundra barrens.
The ecoregion's dominant trees are stunted black spruce and tamarack. Less common are white spruce, dwarf birch, willow, laurel, and rhododendron. Cottongrass, lichens, and mosses cover the ground. White spruce forests grow along the Atlantic Coast; salt marshes and plateau bogs are common on coastal marine terraces. Moose, black bears, wolves, red foxes, arctic foxes, wolverines, coyotes, snowshoe hares, grouse, ospreys, peregrine falcons, ravens, and waterfowl all rely on this ecoregion for habitat.
Approximately 95 percent of the ecoregion remains intact. Five percent of the ecoregion is permanently flooded by hydroelectric projects. Future threats include additional hydroelectric projects, mining, and logging. For more information on this ecoregion, go to the World Wildlife Fund Scientific Report. All text by World Wildlife Fund © 2001
|