Biomes
Geographic
Location &
Dominant
Features
Abiotic Factors:
Temperatures (Highs/Lows)
& Precipitation
(Totals/Patterns)
Tundra
Located in polar regions -10 to 0°F/ -34°C
– Russia, Canada,
Alaska, Scandanavia
15-25cm/6-10 in
Permafrost: subsurface
layer of soil that
(Low temp/Low Rain)
remains frozen
throughout the year
Keystone: Artic Fox –
food source for a lot of
animals in the tundra
biome
Global warming,
melting of
permafrost, oil
spills
Taiga (boreal
forest)
Located in Polar
Regions, 50 & 60 N –
Russia, Poland, Iceland,
Canada
Keystone: Pine, Spruce,
Fir Trees –
homes/places to grow
for animals/plants
Deforestation,
Climate Change
Keystone: Kangaroo Rat
– burrows serve as
homes to many other
animals
Wildfire
-65 to 70°F/ -54 to 21°C
30-85 cm
Biotic Factors (3-5 Human Impact Other
examples for both Environmental Interesting
plants and animals) Costs
Facts
(Seasonal temp/Seasonal Rain)
Chaparral
(woodland)
Tropical Rain
Forest
30 - 40° (above/below
the equator) along the
COASTS
(Southern CA, South
America, SW Australia,
S Africa, Mediterranean
Sea)
30-100°F / 10 - 40°C
20°N/S
Central/S America
Africa
SE Asia/NE Australia
Average temp 77°F/23°C
0-13 cm/12-40 in
(Seasonal Temp, Low Rain)
Plants have deep roots
to protect against fires
125 – 660 cm/50 – 260 in
(High temp, High Rain)
Keystone: Agouti – only
animal to eat brazil tree
nuts
Deforestation,
Global Warming
Temperate
Seasonal
(Deciduous)
Forest
NE Asia, W Europe,
Eastern United States
Grasslands
45N, North America,
China, Mongolia
50°F/10°C
30-60 in
Keystone: White-tail
deer – eat grass/other
plants to control their
populations
Acid Rain,
deforestation,
climate change
(Seasonal temp, high rain)
-20 to 30°C
Global warming,
urbanization,
pesticide use
50 – 90 cm
(Seasonal Temp, Low rain)
Tropical
Seasonal Forest
(savanna)
Desert
15°N-30°S
15°W-40°W
Africa (also South
America, India, N
Australia)
68 - 86°F/ 20 to 30°C
Africa, Australia,
Middle East
100°F
Keystone: elephant –
eat small trees
Competition from
non-native species,
overhunting,
climate change,
over farming (soil
loss)
Keystone: Hummingbird
– pollination
Global warming,
wild fires, nuclear
waste is
stored/dumped
there, off road
vehicles
Keystone: Fish – source
of food
Oil spill, drought,
global warming
10 – 30 in
(High temp/ seasonal rain)
10 in
(high temp, low rain)
Aquatic (marine
& freshwater)
Everywhere.
Fresh: 65 -75°F – decrease temp in
winter
Salt: 28.5°F – constant temp