Tropical Rainforest
- Average temperature of 25+�C - near the equator
- Average of 3000+ mm of rainfall - most have 2000+ mm
- Characteristics
? Abundant rainfall in all seasons and warm temperatures - near the equator and therefore is never too far from the Intertropical Co
Tropical Seasonal Forest/Savanna
- Average temperature of 25+�C - near the equator
? Can be hotter than the tropical rainforest
- Average of 1000-3000 mm of rainfall - most have ~1500 mm
? Has a dry season
? Hadley cells air falls here and causes dry periods as the ICZ moves
- Characteri
(Subtropical) Deserts
- Average temperature of 25+�C - near the tropics
- Average rainfall of 750 mm - range from 0 mm to 1000 mm
- Characteristics
? Major warm (subtropical) ______________ at around 30� N and S
? Drought during growing seasons
? Low rain 5-40 cm annually
? So
Mediterranean Woodland/Shrubland
- Average temperature 17�C - range from -5�C to ~18�C
- Average rainfall of ~400 mm
? Moist cool season
? Dry summers
- You need more information than average temperature and annual precipitation to determine this biome - i.e. seasonality, fire, and herbi
(Temperate) Grasslands
- Average temperature of ~8C - ranges from ~15�C to -10�C
- Rainfall ranges from 0 to ~900 mm
- Several months have mean minimum temperatures below freezing - i.e. Jan. to April and Nov. to Dec.
- Maximum precipitation and temperature coincide
- Winters a
Temperate Forest(s)
- Average temperature of 10�C - ranges from 0�C to ~15�C
- Temperate coniferous forests are associated with seasonal drought
- Moderate variation in temperature
- Temperature deciduous forests are associated with low seasonal variation in precipitation
-
Boreal Forest(s)
- Average temperature -2�C - ranges from ~-7�C to ~2�C
- Range from ~180 mm to 566 mm
- Show great temperature variation
- Characteristics
? Short growing season (3 or 4 months) - grasses cannot compete with trees
? Moderate or low precipitation during th
Tundra(s)
- Average temperature ~-5�C - ranges from ~-5�C to below -10�C
? proximity to the sea moderates temperatures
- Average precipitation 300 mm � ranges from 0 mm to 1000 mm
- Characteristics
? Low rainfall, although permafrost keeps soils moist by blocking d
Temperate Regions
- You need more information than average temperature and annual precipitation to determine this biome - i.e. seasonality, fire, and herbivores
? Woodland/Shrubland
? Temperate rainforest
? Temperate seasonal forest
? Temperate grassland/desert
Overview
- Deserts: generally much less than 300 mm (but cold deserts can approach 300mm)
- Grasslands: Generally less than 600 mm but depends on growing season.
- Mediterranean shrublands: 300 - 600 mm (and summer-drought!).
- Tropical rainforest: > 2200 mm
- Tro
Temperate Rain Forest(s)
Coniferous forests of coastal North America (from Alaska to Oregon) supported by warm, moist air from the Pacific Ocean.