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Manchineel trees are often signposted as dangerous. William Ellis, ship's surgeon for James Cook on his final voyage, wrote: On the fourth, a party of men were sent to cut wood, as the island apparently afforded plenty of that article; amongst other trees they unluckily cut down several of the manchineel, the juice of which getting into their ...
The mountain pine beetle (Dendroctonus ponderosae) is a species of bark beetle native to the forests of western North America from Mexico to central British Columbia. It has a hard black exoskeleton, and measures approximately 5 millimetres (1⁄4 in), about the size of a grain of rice. In western North America, an outbreak of the beetle and ...
Coarse woody debris. Coarse woody debris (CWD) or coarse woody habitat (CWH) refers to fallen dead trees and the remains of large branches on the ground in forests [1] and in rivers or wetlands. [2] A dead standing tree – known as a snag – provides many of the same functions as coarse woody debris. The minimum size required for woody debris ...
Red Forest. The Red Forest (Ukrainian: Рудий ліс, romanized: Rudyi Lis, Russian: Рыжий лес, romanized: Ryzhiy Les, lit. 'ginger-colour forest') is the ten-square-kilometre (4 sq mi) area surrounding the Chernobyl Nuclear Power Plant within the Exclusion Zone, located in Polesia. The name "Red Forest" comes from the ginger-brown ...
Health of the tree: Dead trees might cost less to remove since they’re lighter and their bark is often softer. Plus, if the dead tree has already fallen, most companies won’t charge as much to ...
Petrified wood. Polished slice of a petrified tree from the Late Triassic Epoch (approximately 230 million years ago) found in Arizona. The remains of insects can be detected in an enlarged image. Petrified wood (from Ancient Greek πέτρα meaning 'rock' or 'stone'; literally 'wood turned into stone'), is the name given to a special type of ...
Tree health. Trees can live for a long time but eventually die, either from natural causes or killed by man. Ill-health of trees can be diagnosed, and early treatment, pruning or felling to prevent the spread may result in timber stocks and amenity trees being saved. Tree owners and Arborists /arboriculturists need to be aware of the risk posed ...
An old-growth forest[a] (also referred to as primary forest) is a forest that has developed over a long period of time without disturbance. Due to this, old-growth forests exhibit unique ecological features. [1] The Food and Agriculture Organization of the United Nations defines primary forests as naturally regenerated forests of native tree ...