biomes
DESCRIPTION
BIOMES. What is a Biome?. A biome is a large region characterized by a specific type of climate and certain types of plants & animal communities. Described by their vegetation. Plants that grow in an area determine the other organisms that can live there. Tropic of Cancer. Equator. - PowerPoint PPT PresentationTRANSCRIPT
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BIOMES
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What is a Biome?
• A biome is a large region characterized by a specific type of climate and certain types of plants & animal communities.
• Described by their vegetation.– Plants that grow in an area determine the other
organisms that can live there.
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Chaparral
Temperate Grassland
Temperate Deciduous Forest
Taiga (northern coniferous forest )
Tundra (polar grasslands)
Savanna
Tropical scrub forest
Tropical deciduous forest
Tropical Rain Forest,Tropical Evergreen Forest
Desert
Ice
Mountains(complex zonation)
Semi-desert,arid grassland
Tropic ofCapricorn
Equator
Tropic ofCancer
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Consider this hierarchy model:
BIOSPHERE
BIOMES
SMALLER ECOSYSTEMS
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What factors determine which plants can grow in a certain area?
• Remember that biomes are defined by their plant life
• Climate– Refers to the weather conditions, such as temperature,
precipitation, humidity, & winds, in an area over a long period of time.
• Temperature & Precipitation– Determines a region’s climate– All organisms need water, and the larger an organism is,
the more water it needs.
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Polar
Subpolar
Temperate
Tropical
Desert
Desert
Deciduousforest
Deciduousforest
Coniferous forestConiferous forest
ChaparralChaparralGrasslandGrassland
SavannaSavanna
ScrublandScrublandTropical
seasonalforest
Tropicalseasonal
forest
Rain forestRain forest
TundraTundra
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Latitude & Vegetation
• Biomes, climate, and vegetation vary with latitude & altitude.
• Latitude is the distance north or south of the equator and is measured in degrees.
• Altitude is the height of an object above sea level.
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Initial pattern of air circulation
Deflections in the paths of air flownear the earth’s surface
30°S
Easterlies
Westerlies
Southeasttradewinds
(Doldrums)
Northeasttradewinds
Westerlies(from the west)
Easterlies(from the east)
60°S
equator
30°N
60°N
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Climate type
Cold
Cool Temperate
Warm Temperate
Tropical
(equator)
Tropical
Warm Temperate
Cool Temperate
Cold
Fig. 6.6a, p. 125
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Tundra
Taiga
DeciduousForest
TropicalRain
Forest
Tropical Rain Forest
Temperate Deciduous Forest
Taiga Tundra
LowHigh Moisture Availability
HighLow
Elevation
MTNs (Ice & Snow)
Polar Ice
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Polar (ice)
Subarctic (snow)
Cool temperate
Warm temperate
Dry
Tropical
Highland
Major upwelling zones
Warm ocean current
Cold ocean current
River Fig. 6.4, p. 124
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Review
• Why is it hard for trees to survive at the tops of very high mountains?
• Which biome would you expect to find a warm to hot conditions with a large amount of moisture?
• Coniferous trees can be found in both the subarctic taiga and in warm chaparral regions. What kind of conditions have these trees in these areas adapted to?