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In physical geography, tundra (/ ˈ t ʌ n d r ə, ˈ t ʊ n-/) is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. There are three regions and associated types of tundra: Arctic, [2] Alpine, [2] and Antarctic. [3] Tundra vegetation is composed of dwarf shrubs, sedges, grasses, mosses, and lichens ...
Animal species that are endangered in the tundra include the Arctic fox, caribou, and polar bears. These animals have been endangered due to overhunting, an infestation of disease, loss of diet and habitat due to climate change, and human destructive activities, such as searches for natural gas and oil, mining, and road building. [10]
The Alaskan tundra wolf (Canis lupus tundrarum), also known as the barren-ground wolf, [3] is a North American subspecies of gray wolf native to the barren grounds of the Arctic coastal tundra region.
The Alaskan waters are home to two species of turtles, the leatherback sea turtle and the green sea turtle. Alaska has two species of frogs, the Columbia spotted frog and wood frog, plus two introduced species, the Pacific tree frog and the red-legged frog. [1] The only species of toad in Alaska is the western toad.
Mount Elbert rises through multiple biotic zones, with alpine tundra at its peak.. The Rocky Mountains range in latitude between the Liard River in British Columbia (at 59° N) and the Rio Grande in New Mexico (at 35° N), and in height up to the highest peak, Mount Elbert at 14,440 feet (4,400 m), taking in great valleys such as the Rocky Mountain Trench and San Luis Valley.
Another sub-species of bison, the wood bison (b. b. athabascae) are being reintroduced to the wild in Shageluk, Alaska. As of March 23, 2015, 70 of 100 wood bison have been released. [46] [47] Elk Cervus canadensis: Elk are not native to the state and are introduced; individuals in Alaska are of the Roosevelt elk subspecies (C. c. roosevelti). [48]
A-Z Animals Articles 17 days ago Discover the Incredible Adaptations That Help Reindeer Thrive in the Arctic. Reindeer are a species of deer also known as caribou in certain regions.
Other animal species in this region are Kamchatkan brown bears, sea otters, and sea eagles (predators of salmon with 2.5 metres (8 ft 2 in) wingspan). Avifauna species number 200, including auks, tufted puffins and swans. [8] The Siberian tiger is the most prominent species in Primorsky Krai; as of 2015 there were 480 to 540 remaining.