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Fire is the dominant type of disturbance in boreal North America, but the past 30-plus years have seen a gradual increase in fire frequency and severity as a result of warmer and drier conditions. From the 1960s to the 1990s, the annual area burned increased from an average of 1.4 to 3.1 million hectares per year.
The Rocky Mountains are important habitat for a great deal of wildlife, such as elk, moose, mule deer, white-tailed deer, pronghorn, mountain goat, bighorn sheep, black bear, grizzly bear, gray wolf, coyote, cougar, bobcat, Canada lynx, and wolverine. [1] North America's largest herds of moose is in the Alberta-British Columbia foothills ...
Hoffman (1958) discusses the origin of this differential use in North America and how this differentiation distorts established Russian usage. [4] Climate change is a threat to taiga, [5] and how the carbon dioxide absorbed or emitted [6] should be treated by carbon accounting is controversial. [7] White spruce taiga in the Alaska Range, Alaska ...
Both the terrestrial and oceanic aspects of the Arctic region influence Arctic ecology. Two influential environmental factors are sea ice and permafrost. [editorializing] Arctic sea ice. Sea ice is frozen seawater that moves with oceanic currents. [40] It is a common habitat and resting place for animals, particularly during the winter months.
The North American Model of Wildlife Conservation is a set of principles that has guided wildlife management and conservation decisions in the United States and Canada. [1] Although not formally articulated until 2001, [ 2 ] the model has its origins in 19th century conservation movements , the near extinction of several species of wildlife ...
The reindeer (caribou in North America) is a widespread and numerous species in the northern Holarctic, being present in both tundra and taiga (boreal forest). [1] Originally, the reindeer was found in Scandinavia, eastern Europe, Russia, Mongolia, and northern China north of the 50th latitude.
White-tailed deer can easily thrive in suburban areas, as a combination of increased safety from some predators (including human hunting), high quality and abundance of foods in home gardens, city parks, open farmland, and other factors all create landscapes with an abundance of edge habitat. The white-tailed deer is a ruminant, which means it ...
Habitat loss Arctic fox , polar bear , caribou % [ 1 ] The Canadian Arctic tundra is a biogeographic designation for Northern Canada 's terrain generally lying north of the tree line or boreal forest , [ 2 ] [ 3 ] [ 4 ] that corresponds with the Scandinavian Alpine tundra to the east and the Siberian Arctic tundra to the west inside the ...