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A clonal colony can survive for much longer than an individual tree. A colony of 48,000 quaking aspen trees (nicknamed Pando), covering 106 acres (43 ha) in the Fishlake National Forest of Utah, is considered one of the oldest and largest organisms in the world. Recent estimates set the colony's age at several thousand (up to 16,000) years ...
Various unicellular and multicellular species, including some vertebrates, achieve this state either throughout their existence or after living long enough. A biologically immortal living being can still die from means other than senescence, such as through injury, poison, disease, predation, lack of available resources, or changes to environment.
Old-growth forests tend to have large trees and standing dead trees, multilayered canopies with gaps that result from the deaths of individual trees, and coarse woody debris on the forest floor. [8] The trees of old-growth forests develop distinctive attributes not seen in younger trees, such as more complex structures and deeply fissured bark ...
International experts from 29 universities and research centres analysed data from 176 forest restoration sites.
So with the Windy KBP Complex fires burning in the Sequoia National Forest and Park, 23ABC took an in-depth look at the impact of those fires in those areas.
The longevity of the trees is believed to be related to the proportion of dead wood to live wood. This high ratio reduces respiration and water loss, thereby extending the life of the tree. [10] Trees that reproduce by cloning can be considered to be much older than bristlecone pines.
Other trees, such as coast redwoods and western red cedars are known to reproduce by layering. [6] The tree's age was determined by carbon-14 dating of the root system, which found roots dating back to 375, 5,660, 9,000, and 9,550 years before 2008. [ 7 ]
Damage may also disfigure amenity trees, create unacceptable risks to people, reduce the safe useful life of trees or reduce the value of commercial timber. [citation needed] Trees can withstand large amounts of some types of damage and survive, but even small amounts of other traumas can result in death, disfiguration or hazards.