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Nowitna National Wildlife Refuge
The heart of Nowitna National Wildlife Refuge is a lowland basin of forests and wetlands that forms the floodplain of the meandering Nowitna River. The refuge's climate is typically marked by light precipitation, mild winds, long, hard winters and short, relatively warm, summers. The hills that circle the refuge lowlands are capped by alpine tundra. It takes a week in a canoe, or more than an hour in a small plane, to traverse the refuge's of pristine wildlife habitat. Approximately of the Nowitna River's length flow within the boundaries of the refuge. Fish species inhabiting the river and its related lakes and streams include sheefish, burbot, whitefish, sucker, king and chum salmon, northern pike and arctic grayling. The slow, meandering lower reaches of the Nowitna wander through one of Alaska's many productive waterfowl nurseries. The grassy margins of the river, surrounding lakes, and waterways provide breeding habitat for trumpeter swans, white-fronted geese, canvas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states (Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th parallel, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfowl
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Most modern species in the order are highly adapted for an aquatic existence at the water surface. With the exception of screamers, males have penises, a trait that has been lost in the Neoaves. Due to their aquatic nature, most species are web-footed. Evolution Anseriformes are one of only two types of modern bird to be confirmed present during the Mesozoic alongside the other dinosaurs, and in fact were among the very few birds to survive their extinction, along with their cousins the galliformes. These two groups only occupied two ecological niches during the Mesozoic, living in water and on the ground, while the toothed enantiornithes were the dominant bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ANILCA Establishments
The Alaska National Interest Lands Conservation Act (ANILCA) is a United States federal law signed by President Jimmy Carter on December 2, 1980. ANILCA provided varying degrees of special protection to over of land, including national parks, national wildlife refuges, national monuments, wild and scenic rivers, recreational areas, national forests, and conservation areas. It was, and remains to date, the single largest expansion of protected lands in history and more than doubled the size of the National Park System. The Act provided for of new national parklands in Alaska; the addition of to the National Wildlife Refuge System; twenty-five wild and scenic rivers, with twelve more to be studied for that designation; establishment of Misty Fjords and Admiralty Island National Monuments in Southeast Alaska; establishment of Steese National Conservation Area and White Mountains National Recreation Area to be managed by the Bureau of Land Management; the addition of to the W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Largest National Wildlife Refuges
Here is a list of the largest National Wildlife Refuges in the United States. It includes all that are larger than , but excludes those in U.S. territories (also officially in the system). Acreage/Area includes water as well as land areas. Statistics are as of 30 September 2007. The eleven largest National Wildlife Refuges are all in the state of Alaska. {, class="wikitable sortable" , - ! Name ! State(s) ! Acreage ! Area: km² , - , Arctic National Wildlife Refuge , Alaska , 19,286,482.30 , 78,049.62 , - , Yukon Delta National Wildlife Refuge , Alaska , 19,162,416.50 , 77,547.55 , - , Yukon Flats National Wildlife Refuge , Alaska , 8,634,511.57 , 34,942.63 , - , Togiak National Wildlife Refuge , Alaska , 4,102,537.38 , 16,602.38 , - , Innoko National Wildlife Refuge , Alaska , 3,850,481.05 , 15,582.34 , - , Alaska Peninsula National Wildlife Refuge , Alaska , 3,563,489.83 , 14,420.93 , - , Koyukuk National Wildlife Refuge , Alaska , 3,550,160.50 , 14,3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grizzly Bear
The grizzly bear (''Ursus arctos horribilis''), also known as the North American brown bear or simply grizzly, is a population or subspecies of the brown bear inhabiting North America. In addition to the mainland grizzly (''Ursus arctos horribilis''), other morphological forms of brown bear in North America are sometimes identified as grizzly bears. These include three living populations—the Kodiak bear (''U. a. middendorffi''), the Kamchatka bear (''U. a. beringianus''), and the peninsular grizzly (''U. a. gyas'')—as well as the extinct California grizzly (''U. a. californicus''†), Mexican grizzly (formerly ''U. a. nelsoni''†), and Ungava-Labrador grizzly (formerly ''U. a. ungavaesis''†). On average, grizzly bears near the coast tend to be larger while inland grizzlies tend to be smaller. The Ussuri brown bear (''U. a. lasiotus''), inhabiting Russia, Northern China, Japan, and Korea, is sometimes referred to as the "black grizzly", although it is no more closely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Black Bear
The American black bear (''Ursus americanus''), also called simply a black bear or sometimes a baribal, is a medium-sized bear endemic to North America. It is the continent's smallest and most widely distributed bear species. American black bears are omnivores, with their diets varying greatly depending on season and location. They typically live in largely forested areas, but will leave forests in search of food, and are sometimes attracted to human communities due to the immediate availability of food. The International Union for Conservation of Nature (IUCN) lists the American black bear as a least-concern species, due to its widespread distribution and a large population estimated to be twice that of all other bear species combined. Along with the brown bear (''Ursus arctos''), it is one of only two modern bear species not considered by the IUCN to be globally threatened with extinction. Taxonomy and evolution Despite living in North America, American black bears are not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolverine
The wolverine (), (''Gulo gulo''; ''Gulo'' is Latin for "gluttony, glutton"), also referred to as the glutton, carcajou, or quickhatch (from East Cree, ''kwiihkwahaacheew''), is the largest land-dwelling species of the family Mustelidae. It is a muscular carnivore and a solitary animal. The wolverine has a reputation for ferocity and strength out of proportion to its size, with the documented ability to kill prey many times larger than itself. The wolverine is found primarily in remote reaches of the Northern Taiga, boreal forests and subarctic and alpine tundra of the Northern Hemisphere, with the greatest numbers in Northern Canada, the U.S. state of Alaska, the mainland Nordic countries of Europe, and throughout western Russia and Siberia. Its population has steadily declined since the 19th century owing to animal trapping, trapping, range reduction and habitat fragmentation. The wolverine is now essentially absent from the southern end of its range in both Europe and North ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Marten
The American marten (''Martes americana''), also known as the American pine marten, is a species of North American mammal, a member of the family Mustelidae. The species is sometimes referred to as simply the pine marten. The name "pine marten" is derived from the common name of the distinct Eurasian species, ''Martes martes''. It is found throughout Canada, Alaska, and parts of the northern United States. It is a long, slender-bodied weasel, with fur ranging from yellowish to brown to near black. It may be confused with the fisher (''Pekania pennanti''), but the marten is lighter in color and smaller. Identification of the marten is further eased by a characteristic bib that is a distinctly different color than the body. Sexual dimorphism is pronounced, with males being much larger. The diet is omnivorous and varies by season, but relies chiefly on small mammals like voles. They are solitary except during the mid-summer breeding season. Embryonic implantation is delayed until l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada Lynx
The Canada lynx (''Lynx canadensis''), or Canadian lynx, is a medium-sized North American lynx that ranges across Alaska, Canada, and northern areas of the contiguous United States. It is characterized by its long, dense fur, triangular ears with black tufts at the tips, and broad, snowshoe-like paws. Its hindlimbs are longer than the forelimbs, so its back slopes downward to the front. The Canada lynx stands tall at the shoulder and weighs between . The lynx is a good swimmer and an agile climber. The Canada lynx was first described by Robert Kerr in 1792. Three subspecies have been proposed, but their validity is doubted; it is mostly considered a monotypic species. A specialist predator, the Canada lynx depends heavily on the snowshoe hare (''Lepus americanus'') for food. This leads to a prey-predator cycle, as Canada lynxes respond to the cyclic rises and falls in snowshoe hare populations over the years in Alaska and central Canada. The Canada lynx population inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northwestern Wolf
The northwestern wolf (''Canis lupus occidentalis''), also known as the Mackenzie Valley wolf, Alaskan timber wolf, or Canadian timber wolf, is a subspecies of gray wolf in western North America. Arguably the largest grey wolf subspecies in the world, it ranges from Alaska, the upper Mackenzie River Valley; southward throughout the western Canadian provinces, aside from prairie landscapes in its southern portions, as well as the Northwestern United States.Mech, L. David (1981), ''The wolf: The Ecology and Behaviour of an Endangered Species'', University of Minnesota Press, p. 352, Taxonomy This wolf is recognized as a subspecies of ''Canis lupus'' in the taxonomic authority ''Mammal Species of the World'' (2005). The subspecies was first written of by Scottish naturalist Sir John Richardson in 1829. He chose to give it the name ''occidentalis'' in reference to its geographic location rather than label it by its color, as it was too variable to warrant such.Richardson, J. (18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Moose
The Alaska moose (''Alces alces gigas''), or Alaskan moose in Alaska, or giant moose and Yukon moose in Canada, is a subspecies of moose that ranges from Alaska to western Yukon. The Alaska moose is the largest subspecies of moose. Alaska moose inhabit boreal forests and mixed deciduous forests throughout most of Alaska and most of Western Yukon. Like all moose subspecies, the Alaska moose is usually solitary but sometimes will form small herds. Typically, they only come into contact with other moose for mating or competition for mates. The males and females select different foraging habitats leading to spatial segregation throughout much of the year. During mating season, in autumn and winter, male Alaska moose become very aggressive and prone to attacking when startled. Diet Alaska moose have a similar diet to other moose subspecies, consisting of terrestrial vegetation forbs and shoots from trees such as willow and birch. Alaska moose require a daily intake of 9770 kilocalori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athabascan
Athabaskan (also spelled ''Athabascan'', ''Athapaskan'' or ''Athapascan'', and also known as Dene) is a large family of indigenous languages of North America, located in western North America in three areal language groups: Northern, Pacific Coast and Southern (or Apachean). Kari and Potter (2010:10) place the total territory of the 53 Athabaskan languages at . Chipewyan is spoken over the largest area of any North American native language, while Navajo is spoken by the largest number of people of any native language north of Mexico. ''Athebaskan '' is a version of a Cree name for Lake Athabasca ( crm, Āðapāskāw, script=Latn 'herethere are reeds one after another'), in Canada. Cree is one of the Algonquian languages and therefore not itself an Athabaskan language. The name was assigned by Albert Gallatin in his 1836 (written 1826) classification of the languages of North America. He acknowledged that it was his choice to use that name for the language family and its associa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
