Chapter 3
Section 2
Terrestrial Biomes
Weather
  Condition of the atmosphere at a specific place and
time.
  Hot
  Cold
  Dry
  Precipitating
What effects does Latitude
have on climate?
  Since the earth is tilted
and round the light from
the sun reaches the earth
at different angles.
  The different angles allow
for the differences in
radiation that the earth
receives.
  This difference is what
gives the different
temperatures.
Climate
  The average weather
conditions in an area,
including temperature and
precipitation, describe the
area’s climate.
  The graph shows how
temperature and
precipitation influence the
communities.
Biomes
Tundra
  Cold and dry
  Treeless
  Permafrost-permanently frozen soil
  Dark most of the year
  South of the polar ice caps
Biomes
Boreal forest
  Dense evergreen forests (conifers)
  Summers are short, winters are long
  Cold and dry; but lack permafrost layer
  Under the tundra
Biomes
Temperate forest
  Broad leaved deciduous trees (trees that shed
leaves in autumn
  Winters are cold, summers are hot
  Spring has a lot of rainfall that restarts growth
cycle.
Biomes
Temperate woodlands and shrublands
  Less annual rainfall than Temperate forest
  Dominated by shrubs
  Summers are very hot and dry; winters are cool and
wet
Biomes
Temperate grasslands
  Fertile soils
  Thick grasses
  Drought, grazing animals and fire keep this area
from becoming forests
  Summers are hot, winters are cold
  Moderate rainfall
Biomes
Desert
  Exist in every continent except europe
  Dry- annual rate of evaporation exceeds
precipitation (desert)
  Varying temperatures
  Low rainfall
Biomes
Tropical savanna
  Grasses and scattered trees
  Receive less rainfall than other tropical areas
  Summers are hot and rainy; winters are cool and
dry
Biomes
Tropical seasonal forest
  Rainfall is seasonal
  During dry season most trees drop leaves to
conserve water.
Biomes
tropical rain forest
  Very rainy and humid
  Warm temperatures throughout the year
  Most divers of all land biomes
  Area around the equator in South America, Africa
Australia, and Asia
Biomes
Mountains
  Temperature and precipitation change as the
elevation of the mountain changes.
  Typically there will be less organisms and life as the
elevation increases.
Biomes
Polar regions
  Border the tundra at high latitudes; Antarctica in
the lower latitudes
  Cold all year round
  The Arctic summer is warm enough to grow some
vegetables in some areas.