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Coniferous Forests

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The rain in many areas of the world has become more acidic. ... Hawks. Weasels. Deer. Earthworms. Owls. Lemmings. Lynx. Moose. Mosquitoes. Squirrels ... – PowerPoint PPT presentation

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Title: Coniferous Forests


1
Coniferous Forests
  • By Hannah Dawson,
  • Shivali Kohli
  • And Hannah Leyland

2
Introduction
  • Other names for the coniferous forests are Boreal
    and Taiga.
  • These forests cover approximately 15 0f the
    Earths surface.
  • There are two types of coniferous forests Open
    lichen woodland with trees spaced far apart with
    lichen in-between, and Closed forests which has
    trees close together with moss underneath.

3
Location
  • Coniferous forests are found across North
    America, Northern Europe and Northern Asia.

4
Climate
  • There are strong seasonal variations in a
    coniferous forests climate. Sometimes it can
    vary by 100oF. It has a cool, short summer, and a
    very cold, long, dry winter. Some forests in
    lower locations have a much wetter winter. The
    average rainfall can be 300-900mm annually. In
    some extreme forest, the rainfall is 2,000mm.

5
Threats
  • There are many threats to the coniferous
    forests such as
  • Clear-cut logging is the biggest threat to the
    Coniferous forests. To replant after logging
    single-species conifer monocultures, which is not
    conducive to species biodiversity. Clear-cutting
    can accelerate soil erosion and degrades wildlife
    habitats, leading to the loss of biodiversity.
    Then land is being cleared for ski-slopes,
    landfills, housing, new roads, etc.
  • The rain in many areas of the world has become
    more acidic. These pollutants come from coal
    burning and power plants The tees die and stand
    like grey skeletons against the sky due to the
    acid rain.

6
Threats Continued
  • High- intensity hunting and trapping, has reduced
    many populations of fur-bearing animals.
  • Mining operation are a threat to the forests
    because of the chemicals used in mining, and the
    silt released by mining.
  • Road construction destroys the forest and also
    acts as a barrier to the wildlife. Roads isolate
    the population of the species, from feeding
    grounds, natural migration routes and limits
    breeding between larger groups.
  • As the Earths population continues to increase
    and people continue to move out of the city and
    into the suburbs, more and more Boreal forests
    will be lost in urbanization.

7
Plants
  • Many species are becoming extinct and
    something needs to be done soon. To many, it is
    apparent that today there is an extinction
    crisis. By destroying habitats, polluting the
    land, air, water and promoting the spread of
    exotic species humans have increased extinction
    to alarming rates.
  • Many 'at risk species' are plants. Plants
    play an important role in ecosystems. Through
    photosynthesis they provide food for animals.
    Plants are an important energy source for the
    entire ecosystem. Plants at risk of extinction,
    or some rare plants, are indicators of the
    overall health of an ecosystem. If a plant
    becomes rare, or a previously rare plant begins
    to decline dramatically, it is usually an
    indication of some type of imbalance within the
    ecosystem.

8
Animals
  • Deer
  • Earthworms
  • Owls
  • Lemmings
  • Lynx
  • Moose
  • Mosquitoes
  • Squirrels
  • Ants
  • Foxes
  • Hares
  • Wolves
  • Badgers
  • Eagles
  • Beavers
  • Bears
  • Geese
  • Hawks
  • Weasels

9
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