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The Arctic hare [2] (Lepus arcticus) is a species of hare highly adapted to living in the Arctic tundra and other icy biomes. The Arctic hare survives with shortened ears and limbs, a small nose, fat that makes up close to 20% of its body, and a thick coat of fur. It usually digs holes in the ground or under the snow to keep warm and to sleep ...
With particular regularity, tundra-dwelling grizzlies will wait at burrows of Arctic ground squirrels (Spermophilus parryii) hoping to pick off a few of the 750 g (2 lb) rodents. Ground squirrel hunting is most successful in September and October, when early snow may impede the rodents' rocky escape routes.
The Arctic ground squirrel (Urocitellus parryii) (Inuktitut: ᓯᒃᓯᒃ, siksik) [2] is a species of ground squirrel native to the Arctic and Subarctic of North America and Asia. People in Alaska , particularly around the Aleutians, refer to them as "parka" squirrels, most likely because their pelt is good for the ruff on parkas and for clothing.
Tundra hare Lepus othus: The tundra hare is most often found on the western coast of Alaska, including the Alaska Peninsula, and can occasionally be seen on the Arctic coast and the north slope of the Brooks Range. [61] It generally lives on rocky slopes and upland tundra, avoiding lowlands and forests. [61]
The main predators of the tundra are the polar bear, the Arctic wolf, and the Arctic fox. They all have thick white coats that help them blend into their environment and stalk prey. [ 5 ] The polar bear spends the majority of its time out on the ice hunting seals and sometimes when small rodents are scarce on land the Arctic fox will follow the ...
A lemming is a small rodent, usually found in or near the Arctic in tundra biomes.Lemmings form the subfamily Arvicolinae (also known as Microtinae) together with voles and muskrats, which form part of the superfamily Muroidea, which also includes rats, mice, hamsters and gerbils.
With wildfires and increased warming, scientists say the Arctic’s tundra is now a carbon source. The region had been a carbon sink for thousands of years (NOAA Climate.gov; Arctic Report)
Herbivory is of extreme ecological importance and prevalence among insects.Perhaps one third (or 500,000) of all described species are herbivores. [4] Herbivorous insects are by far the most important animal pollinators, and constitute significant prey items for predatory animals, as well as acting as major parasites and predators of plants; parasitic species often induce the formation of galls.