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Taiga or tayga (/ ˈ t aɪ ɡ ə / TY-gə; Russian: тайга́, IPA:), also known as boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces, and larches. The taiga, or boreal forest, is the world's largest land biome. [1]
Old-growth forests are unique, usually having multiple horizontal layers of vegetation representing a variety of tree species, age classes, and sizes, as well as "pit and mound" soil shape with well-established fungal nets. [19] As old-growth forest is structurally diverse, it provides higher-diversity habitat than forests in other stages.
This is a list of areas of existing old-growth forest which include at least 10 acres (4.0 hectares) of old growth. Ecoregion information from "Terrestrial Ecoregions of the World". [1] (NB: The terms "old growth" and "virgin" may have various definitions and meanings throughout the world. See old-growth forest for more information.)
The native pinewoods that formed this westernmost outpost of the taiga of post-glacial Europe are estimated to have covered 15,000 km 2 (3,700,000 acres) as a vast wilderness of Scots pine, birch, rowan, aspen, juniper, oak and a few other hardy species.
The endangered or threatened species include Labrador tea, lady's slipper orchid, helleborine orchid, longleaf pine, lingonberry plant, Newfoundland pine marten, Methuselahs beard, lodgepole pine, and Scots pine. The life history of longleaf pine is a tree species that has been around for quite some time and can reach more than 250 years in age.
Kisatchie is Louisiana's only national forest, covering old-growth pine forest and bald cypress groves in the bayous. There are 48 mammal species, 56 reptiles, 30 amphibians, and 155 breeding or overwintering birds in this forest. [70] Klamath: California, Oregon
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White spruce, black spruce and tamarack are most prevalent in the four northern eco-zones of the Taiga and Hudson Plains, while spruce, balsam fir, jack pine, white birch and trembling aspen are most common in the lower boreal regions. Large populations of trembling aspen and willow are found in the southernmost parts of the Boreal Plains. [12]