Edge of the habitat at which trees are capable of growing
Tree line above St. Moritz, Switzerland. May 2009In this view of an alpine tree line, the distant line looks particularly sharp. The foreground shows the transition from trees to no trees. These trees are stunted in growth and one-sided because of cold and constant wind.
The tree line is the edge of a habitat at which trees are capable of growing and beyond which they are not. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environmental conditions (usually low temperatures, extreme snowpack, or associated lack of available moisture).[1]: 51 The tree line is sometimes distinguished from a lower timberline, which is the line below which trees form a forest with a closed canopy.[2]: 151 [3]: 18
At the tree line, tree growth is often sparse, stunted, and deformed by wind and cold. This is sometimes known as krummholz (German for "crooked wood").[4]: 58
The tree line often appears well-defined, but it can be a more gradual transition. Trees grow shorter and often at lower densities as they approach the tree line, above which they are unable to grow at all.[4]: 55 Given a certain latitude, the tree line is approximately 300 to 1000 meters below the permanent snow line and roughly parallel to it.[5]
^Elliott-Fisk, D.L. (2000). "The Taiga and Boreal Forest". In Barbour, M.G.; Billings, M.D. (eds.). North American Terrestrial Vegetation (2nd ed.). Cambridge University Press. ISBN 978-0-521-55986-7.
^Jørgensen, S.E. (2009). Ecosystem Ecology. Academic Press. ISBN 978-0-444-53466-8.
^Körner, C. (2012). Alpine Treelines: Functional Ecology of the Global High Elevation Tree Limits. Illustrated by S. Riedl. Springer. ISBN 978-3-0348-0396-0.
^ abZwinger, A.; Willard, B.E. (1996). Land Above the Trees: A Guide to American Alpine Tundra. Big Earth Publishing. ISBN 978-1-55566-171-7.
The treeline is the edge of a habitat at which trees are capable of growing and beyond which they are not. It is found at high elevations and high latitudes...
where trees fail to grow is called the treeline. The biotemperature of the subalpine zone is between 3 and 6 °C (37 and 43 °F). Above the treeline the...
TreeLine USA is a program sponsored by the Arbor Day Foundation in cooperation with the National Association of State Foresters which recognizes public...
Wiktionary, the free dictionary. Timberline is an alternate term for the treeline. It may also refer to: Timberline Lodge, a National Historic Landmark...
"taiga" is used to describe the more northern, barren areas approaching the treeline and the tundra. Hoffman (1958) discusses the origin of this differential...
Alpine climate is the typical climate for elevations above the treeline, where trees fail to grow due to cold. This climate is also referred to as a mountain...
including common tree frog, four-linedtree frog, golden tree frog or striped tree frog. Many past authors have united it with the common Indian tree frog in P...
Scattered trees grow in some tundra regions. The ecotone (or ecological boundary region) between the tundra and the forest is known as the treeline or timberline...
on top of the Siegfried Line. When the base was still open, the remnants of several old bunkers could be seen in the treeline near the main gate. Another...
House of Stuart House of Hanover Family tree of British monarchs Alternative successions of the English crown Line of succession to the British throne Monarchy...
subarctic and subalpine treeline landscapes, shaped by continual exposure to fierce, freezing winds. Under these conditions, trees can only survive where...
Nights Behind The TreeLine is an audio book by Henry Rollins. "Johnny Hartman" - 3:41 "Maya" - 4:55 "Brick" - 2:41 "Polaroid" - 2:14 "Parthenope" - 2:58...
An alp refers to a high mountain pasture, typically near or above the treeline, where cows and other livestock are taken to be grazed during the summer...
metres (1,510 ft), and 32 percent of the mainland is located above the treeline. Its country-length chain of peaks is geologically continuous with the...
This is a family tree of the main line of descent of Confucius (Chinese: 孔子世家大宗). The title of Duke of Song and "Duke Who Continues and Honours the Yin"...
peruanum) is native to the Peruvian Andes at elevations between the treeline and the snow line. It is dorsally gray or brown in color, with a bushy tail and...
company specialized in "trimming trees around power and telephone lines." It was the first company to specialize in utility line clearance and vegetation management...
and Swedish fjäll, all referring to mountains rising above the alpine treeline. In northern England, especially in the Lake District and in the Pennine...
which is too cold and windy to support tree growth. Alpine tundra transitions to sub-alpine forests below the treeline; stunted forests occurring at the forest-tundra...
European Installation Bus (EIB or Instabus). It can use twisted pair (in a tree, line or star topology), powerline, RF, or IP links. On this network, the devices...
The Pinetree Line was a series of radar stations located across southern Canada at about the 50th parallel north, along with a number of other stations...
plane skimmed about 100 yd (90 m) along the top of the treeline before smashing into a large tree and splitting into pieces near Gillsburg, Mississippi...
primarily an alpine and subalpine species. The animals usually stay above the treeline throughout the year but they will migrate seasonally to higher or lower...
44 km (27 mi) southwest of Volos. The peaks of the range are above the treeline. The main mineral constituent of the rock is ophiolite. A Natura 2000...
lined with trees or in a more rural setting with randomly placed trees on each side of the route. The British artist David Hockney has painted tree tunnels...
The tree swallow (Tachycineta bicolor) is a migratory bird of the family Hirundinidae. Found in the Americas, the tree swallow was first described in 1807...
Global Information
