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Taiga - Aaron's Presentation
Transcript of Taiga - Aaron's Presentation
Coniferous forests cover approximately 15% of the Earth's land surface ! The largest habitat on Earth.
A breath-taking habitat that often covers mountainsides.
Trees are tall and narrow, so snow will slide off the branches without breaking them.
The trees grow close together for protection from the wind.
They also have thick barks, which resists damage from low-heat summer fires. Location Climate Long, cold winters and short, wet summers are typical of this region.
The average yearly precipitation is 12 to 33 inches.
Temperature varies from -40°C to 20°C, average summer temperature is 10°C.
Coniferous forests are cold and covered with snow for most of the year - usually from October to May.
It is found in regions that have long winters and moderate to high annual precipitation.
Fire is not uncommon in the taiga during the summer, fires may seem destructive, but they actually help this biome by removing old sick trees, making room for new growth. In the northern boreal forests,the short summers are moderately warm and moist. Also in the northern boreal forests, the winters are long, cold and dry. Plants The most common type of tree found in the taiga is the conifer or cone-bearing tree.
The Coniferous forests are home to acres and acres of cone-bearing evergreen trees such as firs, pines, and spruces. Some deciduous trees such as larches, birches and aspens are also found here.
Conifers grow needles instead of broad leaves and cones instead of flowers. These trees produce their seeds in the cones.
They are evergreen, that is, they bear needles all year long. Pine needles contain very little sap, so freezing is not much of a problem.
Being dark in color they absorb what ever little light that falls on their surfaces.
These trees often have shallow roots because of the poor soil and rocky conditions. The roots spread out widely to take advantage of the moisture in the upper levels of the ground, which only thaws occasionally.
The types of trees found in this habitat are Oak, Spruce & Fir trees.
You can also find mushrooms, Ferns, Mosses and Poison Ivy growing here. Animals There are a wide range of animals here from large carnivores to tiny herbivores. Mostly fur bearing animals.
Though the Coniferous forests have fewer animal species than other forests, they are home to several different animals
Amphibians and reptiles are scarce, but birds, insects and mammals are common.
Not many animals can live in this habitat year-round. They have to deal with the hardship of cold, long winters in several ways. Some hibernate during the winter; while others migrate to warmer climates.
Some of the animals found in the Coniferous forests are Grizzly Bears, Foxes, Wolves, Deer, Moose, Elk and The Siberian Tiger.
You can also find the seed-eating squirrels and jays along with some small mammals like ermine and moles.
Among birds, Woodpeckers, Finches, Sparrows and Ravens are found year round. You can also find Hawks and even the Bald Eagle here. Here is the food chain for some of the animals that live here. Some of the animals that live in the Taiga Wolves Grizzly Bears And the Bald Eagles live here too. Siberian Tigers Deer Threats Extensive Logging is the biggest threat to the Coniferous forest !
Land is being cleared for ski slopes, landfills, housing, new roads, etc.. Regrowth of mature forests takes a long time because of the climate and soil conditions of the taiga.
High-intensity hunting and trapping has reduced many populations of fur-bearing animals.
Mining operations are also a threat to the Coniferous forests because of the chemicals used in mining and the silt released.
Road construction destroys the forest and also acts as a barrier to wildlife.
As the Earth's population continues to increase and people continue to move out of the city and into the suburbs, more and more forests will be lost to urbanization.
Air pollution from cars, wood burning, factories and other sources is a big problem for the Taiga.
Oil exploration, drilling and piping looms like a dark cloud on the Coniferous forests' horizon. N.G.Os (Non Government Organizations) There are over 200 N.G.O's helping to protect the Taiga.
Taiga Rescue Network (TRN) is an international network of more than 200 non-governmental organizations working to defend the world's boreal forests, also known as Taiga.
The goals of this network are:
1) Promoting socially beneficial, economically viable and ecologically sound management of the boreal forests
2) Ensuring Indigenous Peoples rights are respected and local control of resources is guaranteed;
3) Protecting old-growth Northern forests;
4) Halting destructive extraction and wasteful consumption of products from boreal forests. Bring Back the Wild™ - Earth Rangers, collects donations, has a school program, has a website and hosts it's own Community show!
Bring Back the Wild™ is Earth Rangers’ national program that educates children and their families about the importance of biodiversity, and raises funds to support the acquisition and restoration of endangered habitats across the country. What we can do to help save the Taiga Clear-cutting (cut in one go) should be banned and replaced with eco-forestry methods. Trees should be replanted in areas of deforestation.
Lessen the demand for paper products which in turn will lessen the need for logging the Coniferous forests.
Reuse paper bags. Recycle newspapers or read the news online ! Send e-cards instead of paper cards.
As exhaust from cars is a major source of acid rain, drive your car less, join a car pool or ride the bus !
With global warming, summers are getting hotter and dryer. The dry conditions are highly conducive to forest fires. The forest fires that start as a result of a naturally occurring events such as lightning can be beneficial. However man made fires are not.
Reduce use of wood products. Instead of buying new furniture, reuse what you have, or buy used furniture and recover or refinish it. Thank you for listening to my presentation. A map showing where the coniferous forests are. By Aaron Jayawardena Here is a map showing where the Coniferous Forests are located. The Grizzly Bear The Grizzly Bear The Siberian Tiger
The Coniferous forest located along the northern California coast, contains the longest-lived and largest life-form on Earth - The giant Sequoia trees.
Some of these trees are 3,000 years old and counting. Cones with needles Plants found in the Taiga The giant Sequoia trees Moose Deer And the Bald Eagle lives here too !
In Canada, one acre of forest is cut every 12.9 seconds ! One simple thing that you and I can do to help save the Taiga is to use paper wisely by making sure we recycle. This will help reduce the need for logging of trees for pulp which is used to make paper. Over the years, the rain in many areas of the world has become more acid. These pollutants come from coal burning, power plants and other factories. The trees die and stand like gray skeletons against the sky due to acid rain.