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The tundra is an extremely harsh, cold, windy, and unique ecosystem found on the extreme north and south latitudes of our Earth. The soil consists mostly of frozen permafrost, which makes it difficult for extended root systems to grow, and water to drain and support a wide variety of plant life.
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 ...
Rough-legged buzzards that survive to adulthood can live to an age of 19 years in the wild; however, perhaps a majority of individuals in the wild do not survive past their first two years of life. The threats faced by young rough-legs can include starvation when prey is not numerous, freezing when Northern conditions are particularly harsh ...
The Alaskan hare (Lepus othus), also known as the tundra hare, is a species of mammal in the family Leporidae. [2] They do not dig burrows and are found in the open tundra of western Alaska and the Alaska Peninsula in the United States. They are solitary for most of the year except during mating season, when they produce a single litter of up ...
Most tundra animals undergo hibernation during the colder season. Iceland is an island in the North Atlantic Ocean with very scarce land fauna. The only native land mammal when humans arrived was the Arctic fox. There are no native reptiles or amphibians on the island, but a rich marine fauna live in the ocean waters around it.
This food source impacts the health of polar bears negatively. They also begin targeting unusual animals as prey. [45] [46] The Arctic National Wildlife Refuge is the only refuge that regularly dens polar bears in that local region, and contains the most consistent number of polar bears in the area. [citation needed]
Two wolf subspecies that live in the northern Rocky Mountains: Canis lupus irremotus (left) and Canis lupus occidentalis (right) The northern Rocky Mountain wolf preys primarily on the bison, elk, the Rocky Mountain mule deer, and the beaver, though it is an opportunistic animal and will prey upon other species if the chance arises.
The wolf can be found between sea level and 3,000 m (9,800 ft). Wolves live in forests, inland wetlands, shrublands, grasslands (including Arctic tundra), pastures, deserts, and rocky peaks on mountains. [1] Habitat use by wolves depends on the abundance of prey, snow conditions, livestock densities, road densities, human presence and ...