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A fir tree snag among living fir trees. In forest ecology, a snag refers to a standing dead or dying tree, often missing a top or most of the smaller branches.In freshwater ecology it refers to trees, branches, and other pieces of naturally occurring wood found sunken in rivers and streams; it is also known as 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 to be defined as ...
When required, the city of Calgary will use a combination of methods to prevent beaver damage to trees and river parks. Methods of damage prevention includes the placement of a mesh wire fence around the tree trunk, planting trees less palatable to beavers near shorelines, placing under-dam drainage systems to control water levels; and placing ...
The forest is a natural system that can supply different products and services. Forests supply water, mitigate climate change, provide habitats for wildlife including many pollinators which are essential for sustainable food production, provide timber and fuelwood, serve as a source of non-wood forest products including food and medicine, and contribute to rural livelihoods.
The benefits to the forest and its wildlife are many: Prescribed fires are vital in reducing the accumulation of dead wood, leaf litter, and other combustible materials on the forest floor.
Wildlife management is the management process influencing interactions among and between wildlife, its habitats and people to achieve predefined impacts. [ 1 ] [ 2 ] [ 3 ] Wildlife management can include wildlife conservation , population control , gamekeeping , wildlife contraceptive and pest control .
Some structures, such as tree ferns may be keystone species for a diverse range of other species. [11] A number of factors within the forest affect biodiversity; primary factors enhancing wildlife abundance and biodiversity was the presence of diverse tree species within the forest and the absence of even aged timber management. [12]
In other words, what do people lose out on with the removal of a given habitat? A country may increase its food supply by converting forest land to row-crop agriculture, but the value of the same land may be much larger when it can supply natural resources or services such as clean water, timber, ecotourism, or flood regulation and drought control.