BOREAL FOREST OR TAIGA

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BOREAL FORESTOR TAIGA

• Stefanny Wilches

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Background of the Taiga Biome

• Taiga is a biome of the needle leaf forest.
• Living in the taiga is cold and lonely.
• Coldness and food shortages make things really
  difficult, mostly in the winter.
• Some species of the taiga biome for example the
  animals in the taiga hibernate in the winter,
  some fly south if they can, while some just
  cooperate with the environment, which is
  difficult.

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Where on earth does taiga exist?

• Taigas are found in continents of North America,
  Asia and Europe. More specifically, taigas are
  found in the Western United States, Northern
  Europe and Asia, specifically Finland, Sweden,
  Russia, and Norway.
• Taiga is the Russia word for forest and is the
  largest biome in the world.
• Taiga is located near the top of the world.

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The taiga stretches over Eurasia and North
America
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CLIMATE

• The boreal forest regions of subarctic and cold
  continental climate.
• The winters are long and severe up to six months
  with temperatures below freezing.
• Short summer 50 to 100 frost-free days,
  temperatures range as low as 20 degrees
  fahrenheit also as high to 70 degrees fahrenheit.
• Annual precipitation is 30 85 cm (12-33 in).
  The forms the precipitation comes in are rain,
  snow and dew. Most of the precipitation in the
  taiga falls as rain in the summer.

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Continuation of the Climate..

• In the winter, raging blizzard pile snow into
  huge drifts that stay unmelted for more than six
  months of the year.
• In the central areas of Alaska and Siberia, far
  from the moderating influence of the sea, the
  seasonal temperatures fluctuations are the
  largest in the world.

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Conditions

• Taiga is bordered to the north by the tundra,
  where no trees other than dwarf willows can grow
  because the summers are so brief.
• In the taiga there are generally 30 days or more
  when the light is sufficient and the temperature
  rises high enough 50 degrees fahrenheit or more
  for full size trees grow.
• High exposed ground and swampy regions within the
  taiga where trees cannot grow contain isolated
  islands of tundra, while tongues of taiga
  penetrate deep into the tundra in sheltered river
  valley and hallows.

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Continuation of the condition

• Moving south from the tundra proper , there is a
  zone of forest tundra ranging from a few miles
  wide. To the south of the boreal forest lies
  either mixed or pure broadleaved forest or
  temperature grasslands.

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The soil of the taiga

• Taiga soil are not very fertile for growing
  crops, and even if they were, there are not many
  crops that would be viable in the prevailing
  climate.
• The soil water is locked up as ice, expect during
  the short summer, when the topsoil thaws out.
• The interaction of the vegetation and the climate
  produces a soil type known as a podzol.

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Pollution

• Acid rain is formed when pollutants, such as
  nitrogen oxide, from burning gas, and sulfur
  dioxide, from burning coal, are released into the
  air and mix with water vapor to form a cloud.

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What is the consequences of acid rain on the
taiga biome??

• Toxic clouds are created and they become heavy
  with water and precipitation falls, the results
  can be devastating to vegetation, animals, and
  the land.

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Endangered Species

• Siberian tiger
• Specific name Panthera tigris altaica
• Description Sharp teeth. Huge, retractable
  claws. Black stripes on long, orangish fur.
• The are endangered for the type of their fur.

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Endangered Species

• CARIBOU
• This mammals Caribou are the only member of the
  deer family in which both sexes grow antlers.
  Those of adult cows are much shorter and are
  usually more slender and irregular. They have
  large, concave hoofs that spread widely to
  support the animal in snow and soft taiga.
• The feet also function as paddles when caribou
  swim.
• They are herbivores and nourish mainly from
  ground and tree lichens.
• They have poor eyesight, thus have to locate the
  food with their keen sense of smell.
• Caribou prefer treeless tundra and mountains, but
  many herds prefer winter in more sheltered areas
  like boreal forest (taiga).
• Caribou are in endangered for hunting.

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Food Web of the taiga
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Some Food webs

• Moose- Feed on herbs ,shrubs, water plants in
  shallow lakes and bark.
• Hazel grouse- Feed confiner needle and berries
• Lynx- Vole, reindeer

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Animals for the taiga biome

• Moose Brown bears
• Gray wolves Gnat
• Ermine

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Plants in the taiga biome

• Black spruce White spruce
• Jack pine Western red cedar
• Western hemlock

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Natural Resources

• Timber is main natural product from the taiga
  biome also located in Eurasia.
• Fishing located by the coast lines of Alaska,
  Canada help the animals survive also helps the
  economy of each country.
• Oil in the mountains of Alaska, Russia, and some
  parts of Canada.

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References

• http//www.runet.edu/swwoodwar/CLASSES/GEOG235/bi
  omes/intro.html
• http//infotrac.galegroup.com/itweb/char52466?dbT
  RAX
• http//www.defenders.org/wildlife/arctic/caribou.j
  pg
• http//www.harmony.ecisd.net/pape/webs/Taiga.jpg
• http//www.offwell.free-online.co.uk/tree_gallery/
  western_hemlock/western_hemlock_tree.jpg