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Dendroctonus micans, the great spruce bark beetle, is a species of bark beetle native to the coniferous forests of Europe and Asia.The beetles burrow into the bark of spruce trees and lay eggs which develop into larvae that feed on the woody layers under the bark.
Its bark is an excellent fire starter; it ignites at high temperatures even when wet. The bark has an energy density of 5,740 cal/g (24,000 J/g) and 3,209 cal/cm 3 (220,000 J/cu in), the highest per unit weight of 24 species tested. [11] Birch bark is used in a number of crafts by various Native American tribes (e.g. Ojibwe). [22]
The bark on mature trees is a shiny yellow-bronze which flakes and peels in fine horizontal strips. [ 2 ] [ 10 ] The bark often has small black marks and dark horizontal lenticels . [ 7 ] After the tree reaches a diameter greater than 1 ft (0.30 m) the bark typically stops shredding and reveal a platy outer bark although the thinner branches ...
A wildlife garden (or habitat garden or backyard restoration) is an environment created with the purpose to serve as a sustainable haven for surrounding wildlife. Wildlife gardens contain a variety of habitats that cater to native and local plants , birds , amphibians , reptiles , insects , mammals and so on, and are meant to sustain locally ...
Among the commercial products made from bark are cork, cinnamon, quinine [48] (from the bark of Cinchona) [49] and aspirin (from the bark of willow trees). The bark of some trees, notably oak (Quercus robur) is a source of tannic acid, which is used in tanning. Bark chips generated as a by-product of lumber production are often used in bark mulch.
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