ecology

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Author:
wvuong
ID:
72970
Filename:
ecology
Updated:
2011-03-14 21:39:10
Tags:
wendy
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Description:
biomes
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  1. which biomes?
    cold climate and short growing season. only hardiest cold-tolerant plants can survive. found in sub-antarctic islands of Southern Hemisphere. plants have short, prostrate growth form, with mosses, lichens, sedges, and dwarf trees dominating flora.
    animals: small herbivores, like snowshoe hares, lemmings and voles
    large animals: caribous and musk ox
    Tundra.
  2. what biomes?
    40-100 cm of rainfall annually
    evaporation rates: low.
    forest soils tend to be wet.
    domianted by coniferous evergreens, capable of withstanding ocld winters and high snowfalls.
    variety of deer species, including carnivores: lynx, mink, sable, weasels, wolverine and wolves.
    TAIGA
  3. warm summer sand cold winters
    -loads of rainfall
    -support wide variety of deciduous trees.
    -animals: herbivorous (or omnivorous): deer, bears, wild board, badgers, squirrels, and other rodents.
    predators: wolves, foxes, cats, and owls.
    TEMPERATE FOREST.
  4. 30-85 cm year rainfall
    -low precipitation = decomposition is slow and soils tend to be rich and fertile.
    temperate grassland.
  5. mediterranean climates: relatively mild, with winter rains and summer droughts.
    dry summers = frequent fires.
    vegetation dominated by woody shrubs with small, mostly evergreen leaves that are hard, thick, and waxy
    animals: large herbivores like deer and elk and others: mtn lions and wolves.
    Chaparral.
  6. <25 cm rain per year
    -vegetation is sparse and dominated by drought-resistant shrubs
    DESERT.
  7. warm, 90-150cm precipitation. prolong dry period of 3-4 months during which receive less than 5 cm per month. -tall grasses with heights of 3.5 m or more, drought resistant trees
    Tropical Savanna.
  8. abundant sunlight and relatively warm.
    =200 cm of rain per year.
    tropical forest.

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